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Toyota 4.7 engine seized

Replaced timing belt. Rotated engine to make sure marks lined up and no valve interference problems present. When key was turned, engine seized. With belt off, everything moves freely except crankshaft. Removed starter and crank still won't turn. What am I missing?

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Posted on Jan 02, 2017

  • 5 Answers

SOURCE: 96 toyota 4 runner won't start

Check the fuel pressure. A slight dip in pressure will keep the engine from starting. When is the last time you did a tune up? Even if you are getting some spark you might not have enough. New plugs, wires, distr. cap could solve this problem. Or try a new fuel filter. When diagnosing a car problem always do simple cheap things first, as this usually ends up being the cause.

Posted on Jan 01, 2009

michigan man
  • 3533 Answers

SOURCE: engine idles rough, misses at 2500-3000 rpm's

i would first check the timing and if that does not fit i would take the cover back off and look at the belt for a bad or missing tooth

Posted on Feb 14, 2009

jagjeffery
  • 318 Answers

SOURCE: TIMING BELT MARKS DONT MATCH AFTER ENGINE TURNED OVER

dont worry about that you will have to turn the motor over 40 to 50 time before those timing belt marks line up again if your pulley marks line up correctly thats all you have to worry about

Posted on May 29, 2009

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1 Answer

Change timingbelt has no power when putting in gear


If there were no problems prior to the belt replacement, then I would suspect something wrong with either the belt-to-gear timing or with the installation process itself. One question - did the belt break or did you replace it as preventive maintenance? Many engines are interference engines, meaning that if the belt breaks, the pistons and the valves will collide and cause internal damage to the engine. This damage will cause loss of compression, and thus, power. If the belt did not break, then I suspect that either the cam/crank marks are not properly aligned or that in the process of aligning the marks (if the engine is an interference one), proper care was not taken to ensure that the crankshaft was not rotated too far manually to cause valve damage.

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1992 Honda Accord, fuel filter replacement instructions, can you send these to me, thanks


It's not the filter. But replace it anyway. I would look more toward the ignition. Crank sensor, coils, and lose of power to them. Have the codes read.

Dec 13, 2014 | 1992 Honda Accord

1 Answer

If the piston is hitting the valves would that be bent push rods


if your trying to get timing marks to line back up and the crankshaft stops turning, reverse direction of the crankshaft a little and then turn the camshaft a quarter turn.Repeat this process until timing marks are lined back up. not sure if this engine is an interference engine (valve bender) or not. Just dont force it past the stop or you could bend a valve for sure. after installing the timing belt, rotate the crankshaft two turns and recheck the timing marks on cam and crank. hope this helps, good luck.

Jul 14, 2012 | Cars & Trucks

1 Answer

Does my 2003 dodge caravan have an interference engine


Not sure but if doing belt yourself I will give you important tips. 1) before removeing T/Belt set engine to TDC nr 1 there should be marks on the crank and cam (s) gears that line up with a mark on the block / head. 2) prior to removeing tension to belt get liquid paper & mark cam gear(s) & crank gear to point on block / head. 3) mark T/Belt to cam(s), crank, balance shaft if fitted. 4) release tension & remove belt. 5) transcribe marks from old belt to new belt & make sure correct amount of teeth. 6) fit new belt so YOUR marks line up. 7) have tensioner suply presure to belt. 8) turn motor twice by hand to make sure pistons no hit valves 9) Make sure YOUR marks line up if YOUR marks line up it has to be right. 10) Very IMPORTANT if spring tensioner lossen locking bolt again to take up extra slack in belt. 11) tighten locking bolt. 12) put back together.

Jul 11, 2012 | 2000 Dodge Caravan

2 Answers

If timing is off will 94 camry run hot


If the the timing is off at all,it will ruin the engine.

Over heating will be the least of your problems

Wouldn't you have purchased a timing belt manual,
before under taking that kind of job?

Jul 08, 2012 | 1994 Toyota Camry

1 Answer

I have a 96 camry. It blew a timing belt. In the result of that. It bent valves. So i had engine rebuilt. Now it wont start. It back fires. So i thought the timing was wrong. Pulled distributor and rotated...


I am puzzled over how this bent your engine valves, as these engines are "non-interference", that is, the pistons should not contact the valve heads in the event of a snapped timing belt.

Well, you have a rebuilt engine, so..... an engine which backfires and will not start is almost certain to be mistimed, that is, the crankshaft, camshafts, and distributor are not in the right relationship.

You will need to check the crank sprocket and camshaft sprockets, in relation to the marks on them, as here, p 26

http://www.turboninjas.com/camry/eg1.pdf

and then make sure to install the distributor properly, p 17

http://www.turboninjas.com/camry/ig.pdf

Jan 28, 2012 | 1996 Toyota Camry

3 Answers

My timing belt broke on my 1996 Ranger. It's a 2.3 5 spd - Replaced the timing belt, aligned the crankshaft at TDC before teardown and also made tick mark to align it without having to replace timing...


Is it possible that when the belt broke you may have damaged the engine (bent valve). Try advancing or retarding the camshaft sprocket by one tooth and see if that makes a difference.

Apr 10, 2010 | 1996 Ford Ranger SuperCab

2 Answers

1998 kia sportage. changed timing belt. now no compression.


WOW - DID THE BELT BREAK WHILE IT WAS RUNNING IF SO THE VALVES ARE BEND THATS WHY YOU HAVE NO COMPRESSION.
IF YOU HAD THE BELT REPLACED AND THEY DON'T HAVE THE TIMING MARKS RIGHT YOU CAN STILL BEND THE VALVES.
9 TIMES OUT OF 10 THE DAMAGE IS JUST TO THE VALVES AND NOT THE HEAD OR ENGINE. BUT IF YOU HAVE TO PULL THE HEAD MY ADVISE IS TO HAVE THE HEAD CHECKED FOR CNY CRACKS

Sep 16, 2009 | 1998 Kia Sportage

2 Answers

I just replaced the timing belts on my camary and it want start what did i miss


you didnt line up the belt.. renove cover line belt up with marks on wheel.. probablly off one tooth or so

Aug 17, 2009 | 1991 Toyota Camry

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