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Author Topic: Dead, no start. Timing chain feels tight  (Read 11493 times)

thunder39

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Dead, no start. Timing chain feels tight
« Reply #30 on: August 29, 2009, 06:27:16 PM »
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romeomike

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Dead, no start. Timing chain feels tight
« Reply #31 on: August 31, 2009, 11:26:18 AM »
Quote from: thunder39;77604
Just checking in.

Good deal on fuel pump relay? Or is it the wrong product.

http://www.partsgeek.com/gbproducts/YN/D938-KAE-P2037.html?utm_source=google&utm_medium=ff&utm_term=91+1991+BMW+318is+Fuel+Pump+Relay+Kaehler+BMW+Fuel+Pump+Relay&utm_content=YN&utm_campaign=PartsGeek+Google+Base


Here is a picture of two that have worked in my 91 318i. They are four-terminal relays.

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RED IS 91

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Dead, no start. Timing chain feels tight
« Reply #32 on: August 31, 2009, 01:27:40 PM »
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thunder39

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Dead, no start. Timing chain feels tight
« Reply #33 on: September 08, 2009, 01:35:37 PM »
damn guys, I had a bmw guy I ran into come look at the car. motor is no go he said to have it rebuilt. What sucks is I had him come over after I saw another thread of a related problem with a youtube video attached. Basically the guy said the cranking is way to weak and he thinks the timing chain guide is probably broken.

 He hand cranked the motor and didnt like what he heard. Well, Ill double check the compression numbers but it looks like I might need a new motor. My father was driving the car when it died and he was only backing out of the drive way!?
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thunder39

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Dead, no start. Timing chain feels tight
« Reply #34 on: September 08, 2009, 01:36:52 PM »
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thunder39

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Dead, no start. Timing chain feels tight
« Reply #35 on: September 08, 2009, 01:59:21 PM »
http://forums.bimmerforums.com/forum/showthread.php?t=1245494

similar thread. However, I have no power to the fuel pump. Dead on both plugs to the pump. If the engine had no compression would it fail to close the circuit for the fuel pump to engage?
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RED IS 91

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Dead, no start. Timing chain feels tight
« Reply #36 on: September 08, 2009, 07:27:03 PM »
No, The crank position sensor tells the pump to run along with the relay.
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Ramblin MAn

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Dead, no start. Timing chain feels tight
« Reply #37 on: September 08, 2009, 08:43:26 PM »
actually, the computer tells the fuel pump to run when it senses spark via the tach pulse if I'm not mistaken, however if your crank sensor is bad you get no spark.

I have had problems like this before (actually one of my e21s has one like this now). If you can jumper your fuel pump straight from the battery and just let it run while you get in and crank it, if you have spark it should fire. Don't worry about letting the pump run a while, the FPR will send any fuel over pressuer back to the tank.

If you have a timing light, hook it up to one of the plug wires and watch for a good strong regular pulse. That will let you know if you are getting spark. If it's erratic you know you have a problem.
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