Question about 1991 Toyota Corolla

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  • roneel_d Dec 14, 2008

    k i hve done a rebuild on my 4age smallport we managed to get the timing right , but the thing is wen i go to ctat it the car jerks abit then it starts but then when it does it miss fires ,back fires and sounds lot diffrnt like its running on 3 cylinder, i got told its to do with the ignition timing , but iam not sure how to fix it....



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With the timming marks lined up make sure that cylinder 1 is at top dead center on the compresion stroke, then as you lower the distributer back in make sure that the rotor is pointing to the number 1 plug wire post on the distributor cap,mark the distributor where the #1 post is since you can't install it with the cap on.

Posted on Aug 30, 2008


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1 Answer

How many degree is one tooth on distributer

degrees of cam or crank????? NO YEAR< NO ENGINE STATED WOW.
answer, is a circle is 360 so if the dizzy gear is 13 teeth.
so 27.7 degrees cam and 55 degrees crank.
the crank turns 2 times for 1 cam turn. 2:1 ratio.
said another why, cam turns at 1/2 speed of crank.

no context of post.,,,, zero
bad that too.
so what are you doing???
did you PULL the dizzy?
i bet you did and no not now how to time a dizzy, many dont today
because newer cars have no such thing.
did my first in 1964

rules of dizzy 101
never remove spark wires, unless done 1 by 1,
never pull a dizzy until you learn how.
never pull a dizzy unless you put the engine at #1 cylinder, FIRING at TDC. or you will go , quite mad, hair pulled out, and cussing Tesla, endlessly.. LOL

if you post the car spec, engine size and year.
we can fix this. 100 % more easy too.
and better if context what you did. first.

Oct 17, 2014 | Jeep Grand Cherokee Cars & Trucks

2 Answers

Why wont my 1998 astro van start?

With the engine at #1 TDC your rotor bug should be pointing at your #1 plug wire.

Jul 24, 2014 | 1998 Chevrolet Astro Van

1 Answer

Will not start, fuel problem

ok, ill guess it cranks perfectly.
fact 1, there will be no fueling unless the ECU is happy.
happy means:
  1. ECU thinks spark it good. (it has a pin a1 monitor)
  2. Spark is good.
  3. Throttle not stuck (TPS errors) wide open throttle.
if spark is good, IS IT? on all 4 ?
then try test fuel, if it runs for 3seconds on test fuel then the cam belt is not slipped, and there is spark.
if it does not run on tests fuel there is no spark or timed wrong, or the cam belt slipped. (very common on zero serviced cars)
if timing is still correct and runs on test fuel then we attack the ECU inputs. and outputs (the single injector)
this all sounds complex and is not
lets play that out.
  1. ah dizzy rotor turns , cam belt not snapped.
  2. ah, the spark is good but is way off time the belt slipped....
  3. The engine runs on test fuel, wow sounds snappy too.
  4. ok , i use a NOID light on INJECTOR pins 1and 2.
  5. the lamp is good, the fuel pressure , hark , is 0psi or 10. wrong
  6. the NOID fails, i then check TPS input voltage to the EDC
  7. its good, i find the tacho pin dead. OMG.

this year car the Distributor makes all spark the ECU does NOT.
but the ECU watches it like a hawk.
if pin A1 goes dead, ECU cuts fuel, ending crash and burn like seen on TV.

ask questions.

Jul 02, 2014 | 1990 Geo Tracker

1 Answer

Distributor firing order

never power pressure wash it, or get water where its very hard to get out. (sealed bearing in alt, P/S/ and A/C are some)
dry out the ignition parts. this is called Misfire.
but once running right, drive far to get all parts fully hot. so its fully dry
next time do this in summer so it dries, faster and more complete.
you pulled the spark plugs all at once?
oops, that be bad, as most dizzy can be timed 4 ways.
and now you lost that secret
find true TDC firing, #1, zero degrees
then lay down the wires.
the V6 the most front cylinder is #1 (they are staggered)
V6 what displacement. ???
i think they are same. but./...
my 2.5L has COPS,
but yours a dizzy

F= front or water pump end, cam cog side.
F246 )bank 2
F135 (aka; bank 1)

none of this is usefull until TDC #1 firing is found.
the easy way is a compressioin guage to #1, max is fire.
turn engine by hand until this happens and the crank pulley
lands on TDC mark. , pull of Dizzy cap, see rotor. that true #1 spark wire. next time pull them 1 by one, or at least mark the #1 wire.
if you had nice NGK wire sets, mag wire,they are pre-marked.

Jan 27, 2014 | Suzuki Vitara Cars & Trucks

1 Answer

Iv gota 3ltr 94 mitsi v3000.the car trys to start but theres just no spark.iv replaced the coil and stil nothing.i was told maybe its the cam angle sensor?? can anybody help and or tel me where the sensors...

the cam angle sensors are part of the electronic ignition system inside the distributor, have you checked the ht lead from coil to dizzy cap, also check to make sure all earth bonds on car are ok

Dec 06, 2013 | Cars & Trucks

1 Answer

I have a vitara jlx se 1.6i 16v and i have a problem starting it when u turn the key to start it the engine turns over fuel is gettig to plugs the plugs are sparking the timing is all spot on iv changed...

Sounds to me like your dizzy is 180 degrees out.
Too explain: Suzuki does things oddly... the timing marks on the cam sprocket line up when #4 is ready to fire. But then they have you time the distributor to #1. to get it ready for #1 to fire you need to turn the crank one turn. This oddity causes many others to have your issue. So you can check... If you line up the marks on the cam, the dizzy rotor should be pointing at the wire going to #4.

Dec 19, 2011 | Suzuki Vitara Cars & Trucks

3 Answers

I have a 1986 toyota corolla that ran perfectly until I pulled the distributor to change the o-ring. It will not start now, I have tested the voltage on the primary and secondary coil windings which test...

Are you sure you didn't damage the distributor connector? check it carefully, lock into the distributor for any pin problems there, or better yet buy a rebuilt distributor, I am sure the issue is there.

Oct 29, 2008 | 1986 Toyota Corolla 2 Door

1 Answer

Timing belt settings

the tension setting for the belt?

or the timing marks? the timing marks differ. best set cyl. no 1 to tdc.. take out no. 1 spark plug and put sumthin long and thin down the hole.. like a long quarter drive extension.. and check to see that cyl 1 is at tdc.. then set your cam to the OT marks marked on the cam pulley and rocker cover... then you have to set the distributor also.. slacken the 13mm bolt for the dizzy clamp... you will find a line on the lip of the dizzy body.. this needs to align with the middle of rotor arm tip... (sumtimes a mark on the roror arm tip)... tension belt and your timing is set.. set your timing incorrectly and the car will run rough and not rev past 5k...

Sep 26, 2008 | 1993 Volkswagen Golf

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