Question about 1996 Volvo 850

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No compression change timing belt, now when I turn the crank theres no compression

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You did not get the timing marks lined up. Check the service manual or let me know and I may be able to send the proper info to you. Thanks, Dan

Posted on Jun 21, 2008

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The timing belt broke on my 05 caravan 2.4 I have replaced the belt and understand it is an interference engine. the car starts and at base idle runs very rough so I performed a compression test and all...


okay, sounds like you may of got lucky. if theres compression in all cylinders then you may have got lucky, the code you listed pooo16 is crank and cam misalgined, the rough idle may be caused by the timing belt being off timing, double check the alignment of the belt.also check the cam and crank sensors for damage but i would look toward a misaligned belt, heres the timing marks for the timing belt.ive done a few of these and i know they say its a valve bender but never had one bend valves, it tricky to line up and after you line it up and belt is on use a wrench or socket and turn the crank 2 revolutions and check the marks, i think you will be fine but you must algin the belt correctly.good day

Aug 27, 2011 | Dodge Caravan Cars & Trucks

1 Answer

I have a 91 626 mazda, timeing belt broke and the water pump was leaking...so i left it in the garage,the car was not worked on unitl ten months later,i changed the timeing belt and water pump,also new...


Check the ECM for codes. Cam or crank sensors will cause a no start. Also there should have been a compression and/or leak down test performed on the engine before the belt was replaced. This is done to make sure that the pistons didn't bend the valves. Bent valves will cause a nostart because of no compression. First check for codes then do a compression test before you replace anything. Let me know
Randy

May 07, 2011 | 1991 Mazda 626

1 Answer

Motor turns over but the timing belt and cam gear dont move the time belt is good just inspected it. there is comprestion in the cylinders but it will not start


If the engine cranks, but doesn't start, and you've determined that the timing belt and cam gear aren't turning, then several things may have happened.

If the driving sprocket (on the crankshaft) is keyed, check for a sheared key. Make sure the timing belt is properly tensioned (too little tension will allow the crank to turn, but not drive the belt and cam).

Even though you say the belt is good....make sure there isn't a series of teeth ripped of at the crankshaft sprocket (again, this would allow the belt to slip and not turn when the engine is cranked over.

As to there being compression....yes, when the cam isn't turning one or more cylinders will have all valves closed for the top of the compression stroke. This would give a reading of compression, since the valves aren't being activated by a rotating camshaft.

Good luck!

Feb 20, 2011 | 1995 Ford Escort

2 Answers

Shut off on the interstate and wont crank up. we changed the cam sensor the crankshaft sensor and the battery. it turns over but wont crank.


Well, During this time when you replaced the cam sensor and stuff did you check to see if the timing belt was still intact? Do a compression check to see if you've lost compression on any cylinders. If the timing belt broke this will be the case. Chrysler typically has a plastic cover that goes over the cam pulley end of the timing belt that can be removed, it also has a check hole, to check the timing belt as well.

Jul 22, 2010 | 2002 Chrysler PT Cruiser

2 Answers

I put on a new timing belt.both cam gears marks are up,crank grear mark is in line,will not start.


the arrows should face up and there are marks on each gear that should be across from one another in between the two gears{were the gears are nearest each other} al marks should line up again after you turn the crank two complete revolutions. if not remove belt and redo. also make sure cam and crank sensors didnt get damaged/uunplugged

Mar 20, 2010 | 1998 Dodge Stratus

1 Answer

Renault laguna 1.9 valve change


If the cam belt popped you may not need to pull the head.. See if all you valves come to full height when you turn the cam with a wrench. If they do, you lucked out and none are bent. Change the timing belt and rotate the crank and cam together once everything is in time, and if you can, do a compression test. That will expose any bent vales. If you have compression. recheck your timing belt settings and button it up. Good Luck, Ned

Sep 13, 2009 | Renault Sportwagon Cars & Trucks

1 Answer

HONDA CRANKS LIKE IT HAS NO COMPRESSION OR BROKEN TIMING BELT .


Remove the valve cover, and watch the cams while cranking it. My best guess is that one if them is not turning. This would explain why there is only compression in once cylinder. Sure the timing belt may be in tact, but if the cam guide pin is sheered off, and bolt that holds gear to the cam is loose, it will cause this.

Mar 27, 2009 | 1990 Honda Civic

1 Answer

Jumped timing?


It really does sound like the timing went out of whack. The timing belt should be replaced periodically, according to your owner's manual. It may have worn and stretched just enough to slip over a cog a bit. Remove the timing belt covers and check the alignment of your cam and crank. There should be subtle marks on the cogs and the rear cover or casting. The compression will be good during a cranking test, but will not be ok during a running compression check. Replace the timing belt and check the pulleys. If your timing belt did not slip, the timing chain tensioner or guide shoes may be worn and will require replacement.

Aug 07, 2008 | 1991 Pontiac Grand Am

1 Answer

No compression


Dont worry to much the Millenia is a non-interference engine so the valves did not get bent. You just need to re-adjust the belt again in its proper position.

Jul 21, 2008 | 1995 Mazda Millenia

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