Question about 1990 Geo Storm

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Changing timing belt 1990 geo storm - 1990 Geo Storm

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  • Geo Master
  • 20,706 Answers

Old post
answer is :
same as Isuzu Impulse
4XE1
my guess would be for 90. the single cam version
the best source of data is alldata.com
or on the storm forums.
some links here.
http://www.fixkick.com/storm.html

old post but, rare cars. i help on rare.

Posted on Mar 25, 2015

  • 6 more comments 
  • _-__-___-_
    _-__-___-_ Mar 26, 2015

    you want all 20 steps in the FSM? or alldata.com , that it? you never asked a real question. like " what are alls steps and tools to do job, and parts" that be a question

  • _-__-___-_
    _-__-___-_ Mar 26, 2015

    is this your first engine work, and tool free shop>?

  • _-__-___-_
    _-__-___-_ Mar 26, 2015

    cam belt (swaps)

  • _-__-___-_
    _-__-___-_ Mar 26, 2015

    1990 had 2 engines, single and twin cam. using same engine name, what joke that is. huh? and jokes on us. ill toss coin and it lands on SOHC engine.

  • _-__-___-_
    _-__-___-_ Mar 26, 2015

    Disconnect the battery negative cable. Remove the timing belt cover. If necessary, raise and support the vehicle, then remove the right under cover to access the lower timing cover bolts. If not done already, rotate the crankshaft so that the No. 4 cylinder is at TDC on its compression stroke by aligning the camshaft pulley timing mark to the 9 o'clock position. Raise and support the vehicle safely. Remove the crankshaft pulley center bolt, the 4 crankshaft pulley side bolts and the crankshaft pulley from the vehicle. Loosen the belt tension pulley bolt, then remove the timing belt from around the tensioner and other pulleys. Remove the timing belt from the vehicle. To install: Make sure the crankshaft pulley keyway and groove is aligned with the oil pump timing mark and the camshaft pulley timing mark is in the 9 o'clock position. Install the timing belt around the crankshaft timing pulley, followed by the tensioner pulley, water pump pulley and the camshaft timing pulley. Tighten the belt tensioner retaining bolt. Make sure that the belt is properly tightened and is aligned evenly around all the pulleys: Turn the crankshaft 2 complete revolutions and realign the crankshaft timing gear groove with the mark on the oil pump. Loosen the tension pulley bolt and apply tension to the belt using an Allen wrench in the hexagonal pulley hole. Torque the pulley bolt to 37 ft. lbs. (50 Nm) while holding the pulley stationary. Check the timing belt tension/deflection using a belt tension gauge. The belt should deflect 0.63-0.79 in. (16-20mm) when 22 lbs. (98 N) of pressure is applied to the center of the longest belt stretch. Check that the camshaft is still aligned to the 9 o'clock position. Install the timing belt cover, secure it with the 2 lower mounting bolts, then torque the bolts to 89 in. lbs. (10 Nm). Install the crankshaft pulley to the crankshaft dampener, secure the center bolt and the 4 side bolts. Torque the center bolt to 87 ft. lbs. (118 Nm) and the 4 side bolts to 17 ft. lbs. (23 Nm). If removed, install the right side under cover. Lower the vehicle. Install the 4 upper timing belt cover retaining bolts and tighten to 89 inch lbs. (10 Nm). Install the right engine mount. Install the power steering pump drive belt and alternator drive belt. Adjust them to the proper belt tension. Remove engine support fixture and reconnect the negative battery cable.

  • _-__-___-_
    _-__-___-_ Mar 26, 2015

    if not clear, on this , read a book on cam belt service, or youtube all day ,same, then read the FSM book on the proper steps. and how to tension it RIGHT.

  • _-__-___-_
    _-__-___-_ Mar 26, 2015

    the VIN has an engine code , 6= single cam, 5= twin. post vin next time (xxxx out last nums) and we can answer 10x better, really

  • _-__-___-_
    _-__-___-_ Mar 26, 2015

    above words are all vin 6 car.

×

6 Suggested Answers

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Posted on Jan 02, 2017

  • 119 Answers

SOURCE: How to set a timing belt for a 1992 GEO Storm

Here you are:

137fd9e.png

Posted on Jun 01, 2008

  • 10 Answers

SOURCE: how to set the timeing on 91 geo storm

The timing marks are located near the top of the crankshaft pulley on the plastic timing belt cover. There is a notch in the pulley to mark TDC (Top Dead Center)
Align the notch with the 0 mark on the plastic cover to set your base timing.
Ground the proper circuit on the ALDL connecter located under the dashboard somewhere under the steering wheel. Check the manual for the proper circuit to ground.
With the engine warm and the circuit grounded. Set the proper timing. Un-ground the circuit and you are done.

Posted on May 12, 2009

ZJLimited
  • 17970 Answers

SOURCE: need to know how to set the timing gears for a geo

GM Storm/Spectrum 1985-1993 Repair Guide


Timing Belt - REMOVAL & INSTALLATION

Although timing belts may last for thousands of miles past the recommended replacement interval, they should be replaced every 60,000 miles to prevent trouble or damage should they snap. Timing belts do not usually give an indication that they are worn or aging without removing the cover(s) and inspecting the belt. A worn or damaged belt could give out at any time. In some cases, should a timing belt snap while the engine is running, damage could be done to the valve trains or pistons requiring a partial or full engine disassembly. Also, should the belt go when the vehicle is far from home, a costly tow or even more costly repair job and considerable inconvenience may be suffered.
Timing belts must always be handled carefully and kept completely free of dirt, grease, fluids and lubricants. This includes any accidental contact from spillage, fingerprints, rags, etc.. These same precautions apply to the pulleys and contact surfaces on which the belt rides.The belt must never be crimped, twisted or bent. Never use tools to pry or wedge the belt into place. Such actions will damage the structure of the belt and possibly cause breakage.


Spectrum
(see Figures 1, 2 and 3)
The engine must be removed from the vehicle for this procedure to be performed.

  1. Remove the engine and mount it to an engine stand.
  2. Remove the accessory drive belts.
  3. Remove the engine mounting bracket from the timing cover.
  4. Rotate the crankshaft until the notch on the crankshaft pulley aligns with the 0 degree mark on the timing cover and the No. 4 cylinder is on TDC of the compression stroke.
  5. Remove the starter and install the flywheel holding tool No. J-35271 or equivalent.
  6. Remove the crankshaft bolt, boss and pulley.
  7. Remove the timing cover bolts and the timing cover.
  8. Loosen the tension pulley bolt.
  9. Insert an Allen wrench into the tension pulley hexagonal hole and loosen the timing belt by turning the tension pulley clockwise.
  10. Remove the timing belt.
  11. Remove the head cover.
Inspect the timing belt for signs of cracking, abnormal wear and hardening. Never expose the belt to oil, sunlight or heat. Avoid excessive bending, twisting or stretching.
To install:
  1. Position the Woodruff key in the crankshaft followed by the crankshaft timing gear. Align the groove on the timing gear with the mark on the oil pump.
  2. Align the camshaft timing gear mark with the upper surface of the cylinder head and the dowel pin in its uppermost position.
  3. Place the timing belt arrow in the direction of the engine rotation and install the timing belt, first to the crankshaft pulley, next to the camshaft pulley, then to the water pump pulley and finally to the tension pulley. Tighten the tension pulley bolt.
Once installed, there must be not slack in the timing belt. The belt teeth must be in perfect alignment with the gears.
  1. Turn the crankshaft 2 complete revolutions and realign the crankshaft timing gear groove with the mark on the oil pump.
  2. Loosen the tension pulley bolt and apply tension to the belt using an Allen wrench in the hexagonal pulley hole. Torque the pulley bolt to 37 ft. lbs. (50 Nm) while holding the pulley stationary.
  3. Check the timing belt tension using a belt tension gauge, it should be 40-48 lbs. (18-22 Kg).
  4. Adjust the valve clearances.
  5. To complete the installation, reverse the removal procedures. Torque the crankshaft pulley-to-crankshaft bolt to 108 ft. lbs. (147 Nm).
2befeb0.jpg

Fig. 1: Timing belt routing - SOHC engines

716bbfc.jpg
Fig. 2: Align the crankshaft timing gear keyway with the mark in the oil pump - SOHC engines

2f82d49.jpg
Fig. 3: Check the timing belt tension at the center of the longest point between pulleys - SOHC engines


Storm - SOHC ENGINE
(see Figures 1, 2 and 3)
  1. Disconnect the battery negative cable.
  2. Remove the timing belt cover. If necessary, raise and support the vehicle, then remove the right under cover to access the lower timing cover bolts.
  3. If not done already, rotate the crankshaft so that the No. 4 cylinder is at TDC on its compression stroke by aligning the camshaft pulley timing mark to the 9 o'clock position.
  4. Raise and support the vehicle safely.
  5. Remove the crankshaft pulley center bolt, the 4 crankshaft pulley side bolts and the crankshaft pulley from the vehicle.
  6. Loosen the belt tension pulley bolt, then remove the timing belt from around the tensioner and other pulleys. Remove the timing belt from the vehicle.
To install:
  1. Make sure the crankshaft pulley keyway and groove is aligned with the oil pump timing mark and the camshaft pulley timing mark is in the 9 o'clock position. Install the timing belt around the crankshaft timing pulley, followed by the tensioner pulley, water pump pulley and the camshaft timing pulley.
  2. Tighten the belt tensioner retaining bolt. Make sure that the belt is properly tightened and is aligned evenly around all the pulleys:
    1. Turn the crankshaft 2 complete revolutions and realign the crankshaft timing gear groove with the mark on the oil pump.
    2. Loosen the tension pulley bolt and apply tension to the belt using an Allen wrench in the hexagonal pulley hole. Torque the pulley bolt to 37 ft. lbs. (50 Nm) while holding the pulley stationary.
    3. Check the timing belt tension/deflection using a belt tension gauge. The belt should deflect 0.63-0.79 in. (16-20mm) when 22 lbs. (98 N) of pressure is applied to the center of the longest belt stretch.
  3. Check that the camshaft is still aligned to the 9 o'clock position.
  4. Install the timing belt cover, secure it with the 2 lower mounting bolts, then torque the bolts to 89 in. lbs. (10 Nm).
  5. Install the crankshaft pulley to the crankshaft dampener, secure the center bolt and the 4 side bolts. Torque the center bolt to 87 ft. lbs. (118 Nm) and the 4 side bolts to 17 ft. lbs. (23 Nm).
  6. If removed, install the right side under cover.
  7. Lower the vehicle. Install the 4 upper timing belt cover retaining bolts and tighten to 89 inch lbs. (10 Nm).
  8. Install the right engine mount.
  9. Install the power steering pump drive belt and alternator drive belt. Adjust them to the proper belt tension.
  10. Remove engine support fixture and reconnect the negative battery cable.

For DOCH Engine, can visit autozone.com (free register) for more details.

Hope helped with this (remember rated this help) Good luck.

Posted on Nov 05, 2009

  • 1757 Answers

SOURCE: looking for timing belt diagram on 97 Geo Tracker

Click on the following free, direct Link. It has the Timing Belt Diagrams, including Marks and Instructional Diagrams.

Let me know if this helped...

http://www.2carpros.com/car_repair_information/year/1997/make/geo/model/tracker/1997_geo_tracker_timing_belt_diagram_marks.htm

Posted on Apr 08, 2010

  • 31 Answers

SOURCE: Am Replacing Timing Belt On 1990 GEO Tracker 4x4

most of the time there will be one mark on the crank pulley gear and the one on the cam pulley gear.usually a dot or a straight line.

Posted on Apr 17, 2010

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1 Answer

What is the fuel pump pressure for a 1990 geo storm 2+2


storm what engine? 4xe1 or 4xf1 SOHC or DOHC (twin cam)?
its really an Isuzu Impulse in snack skins (badges)
does test fuel run engine? that is step 2.
if the cam timing belt slips, the DOHC goes boom.
the SOHC engine belt slip,cause no starts, due to huge
compression drop, and fails the test fuel tests.

SOHC, keyon, 30-46PSI
same for both. engines
but as all mPI engines it drop running at idle.
and rises at WOT> (FPR actions most work right running) ask
but its no running
ever do a 60,000 interval tuneup with a new cam belt.
no?

Feb 12, 2015 | 1990 Geo Storm

1 Answer

How to change lifter shims on a 1990 geo storm


old post. (no FSM book, or can log in to alldata.com>?
its the 1.6L twin cam, only IT has shims.


answered; with no photos, get the book, or login.
steps: (quote)
The notch on the crankshaft pulley should align with the 0 degrees mark on the timing gear case. Make sure the rocker arms on the No. 1 cylinder are loose and the rockers on the No. 4 cylinder are tight. If not, turn the crankshaft one complete revolution and align the marks again.

Using a feeler gauge, measure the clearance between the cam lobe and the selective shim on the intake and exhaust valves on the No. 1 cylinder, then the intake valves on the No. 2 cylinder and the exhaust valves on the No. 3 cylinder. Note readings.

Rotate the crankshaft 360 degrees. Using a feeler gauge, measure the clearance between the cam lobe and the selective shim on the intake and exhaust valves on the No. 4 cylinder, then the intake valves on the No. 3 cylinder and the exhaust valves on the No. 2 cylinder. Note readings.

The valve clearance obtained on the exhaust valves should be between 0.008-0.012 in. (0.20-0.30mm). If not, replace the selective shim by turning the camshaft lobe downward and installing tool J-38413-2 or J-38413-3 (valve lash spring spacer) between the camshaft journal and the cam lobe next to the selective shim. Turn cam lobe upward and remove the selective shim. Install new shim using the selective shim chart.

The rear camshaft bearing caps must be removed to remove the selective shim.

The valve clearance obtained on the intake valves should be between 0.004-0.008 in. (0.10-0.20mm). If not, replace the selective shim by turning the camshaft lobe downward and installing tool J-38413-2 or J-38413-3 between the camshaft journal and the cam lobe next to the selective shim. Turn cam lobe upward and remove the selective shim. Install new shim using the selective shim chart.

When the adjustment is completed, install the cylinder head covers and connect the battery negative cable. Start the engine and check for leaks.
end quote.

the real question is.
where do i get shims from a dead car company if in USA? now that be the big question.

Apr 12, 2014 | 1990 Geo Storm

1 Answer

Timing marks on 1.6 dual over head cam


the geo storm, 1.6 DOHC
the FSM cover it, so does alldata.com
hint 2, its an Isuzu engine.
its really (makes information easier to find )
Isuzu:
4XE1-UW a DOHC 16-valve engine with 130 hp (97 kW)
he DOHC engine was used in the 1990-1991 Isuzu Impulse XS, in the 1990-1991 Isuzu Stylus XS, in the 1990-1991 Geo Storm GSi, and the M100 Lotus Elan.
all that off the wiki,,
all cars rare here.....

1st google hit
http://www.robietherobot.com/storm/torquespecs.htm

This engine is interference type
so when timed, with a new belt
roll engine by hand, with spark plugs out.? do pistons hit valves.
yes, stop, the cam is timed wrong.
no, do a compression test on #1, if pass, do all 4. 150psi min.w.o.t.
wide open throttle
a better test, is a leak down test. x4. by hand.
these acts of kindness to the engine, saves most engines.

if the leak down fails, the timing is wrong, or the valves are already
bent..
dont use a fleabay china belt, bet a GATES belt. (they last)
setting the tension is very important to a full life .



Jan 30, 2014 | 1990 Geo Storm

2 Answers

Is the Prizm an interference type engine that would be seriously damaged if the timing belt breaks?


there are 3 engines, all made by toyota.
if it has a belt, some engines, are not free running.
find your engines. then go to gates belt do com and look it up
and see last column, "interference'?
or join a toy forum and ask there, after finding the engine code.
3 motors.
my prizm dump.
89-02
joint venture, GM/toyota with 3 engine used.
1.8L or 1.6L
toy engine, 4aFE, 7AFE or 4AG
open hood look
or use the GM RPO tag
or Use the VIN to find motor used.
for docs?
ebay
search
Geo Prizm factory service manual, Duh?

http://www.ebay.com/sch/i.html;jsessionid=D19D723C2EDB4A9FE12E7C01C0677129?_sacat=0&_nkw=geo+prizm+shop+manual&_nkwusc=geo+prizm+shop+manaul&_rdc=1

Feb 17, 2013 | 1990 Geo Prizm

1 Answer

Geo storm alternator light comes on while ideling


belt slippping.
bad alt (reg)
battery has issues. even corroded bat lugs.

Dec 15, 2012 | 1990 Geo Storm

1 Answer

Ichanged the head on my 91 geo storm 1.6 dohc and now it won't start


Double check crankshaft timing mark, on your lower timing cover has some timing marks - crankshaft should be on the 0 mark. Camshaft timing marks--intake camshaft mark set at 3 o'clock and exhaust camshaft mark set a 9 o'clock. These timing marks are critical for motor to run and start correctly. These timings marks can move while trying to install the timing belt. After, you confirm or reset timing and belt, you can confirm timing is correct by rotating the crankshaft twice. Your timing marks should be on right on timing marks discussed at the top of the page. If timing marks are off, start over with timing process.

Jul 11, 2012 | 1990 Geo Storm

1 Answer

Does a 1992 geo storm have an interfierance engine


If the timing belt broke, expect to replace some of the valves. It does not have a zero interference motor.

Sep 02, 2010 | 1990 Geo Storm

1 Answer

Where is the water pump on 1990 Geo Storm GSI? Does it have one? My car is overheating. It has a brand new radiator in it but it doesn't seem to be moving any fluid, there is no flow.


it is on the front of the engine and yeas it has one, it is located under the camshaft drive belt cover and drive by the camshaft belt, both will need to be replaced. see picture below





d764219.jpg

Apr 10, 2010 | 1990 Geo Storm

1 Answer

Timing belt broke


The Storm does NOT have an interference engine. If the belt broke, replace it and be on your way.

Jan 10, 2010 | 1990 Geo Storm

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