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Guest Message by DevFuse
 

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car quit on me


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13 replies to this topic

#1 s'ko

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Posted 21 September 2009 - 09:30 AM

2000 OBS w rebuilt engine
was driving to work this morning & the car cut out
I have about 200 miles on the engine
was not working it hard.

I think I heard a screeching noise before it cut off.
not 100% certain b/c the radio
was on.

now the engine will turn over, but it's a fast rotation.

pulled t-belt cover & the belt is on. can't tell if the timing jumped.
everything was running great before it happened

will b able 2 give more info when i have my tools.

this sucks

BW

#2 Cougar

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Posted 21 September 2009 - 05:59 PM

Oh, man! I hope the belt didn't slip and cause damage to the valves.

#3 EVOthis

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Posted 21 September 2009 - 06:22 PM

+1 ^...with a fast crank like you mentioned I would be checking the t- belt first......

#4 s'ko

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Posted 22 September 2009 - 01:21 AM

so what would cause the t-belt to slip?

I was not accelerating hard. I was cruising at 3500 rpms.

T-belt was not new but had about 30k on it.

In terms of checking for a bent valve. After checking the timing, a compression test should show it it's bent right?

Thanks

BW

#5 john in KY

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Posted 22 September 2009 - 04:56 AM

One of the camshafts could have seized.

#6 nipper

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Posted 22 September 2009 - 10:14 AM

How many miles on this engine?

Who rebuilt the engine?

What was replaced at the front of the engine when it was rebuilt?


nipper

#7 s'ko

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Posted 22 September 2009 - 03:20 PM

Shortblock was rebuilt by me :-\

New bearings, new rings,
old pistons and rods.

EJ25 shortblock had about 140k on it.

EJ22 heads had 129k on it. I took the heads off the shortblock w/a bad bearing. Cleaned off the mating surface, used a multi-layered metal headgasket and old head bolts

Used the old OEM timing belt b/c it only had 20k on it. Used EJ22 water pump and the EJ25 oil pump.

Have my code reader. will pull the codes Thursday.

BW

#8 nipper

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Posted 22 September 2009 - 03:28 PM

Did you replace the tensioners and idlers on the timing belt? A code reader is sort of useless unless the engine starts.


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#9 s'ko

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Posted 22 September 2009 - 04:03 PM

used the ones from the EJ22 engine. They were replaced when the t-belts were last done at 100k.


RE the OD@ reader, it will tell me if there is something not right in terms of a sensor that keeps it from firing.

BW

Edited by s'ko, 22 September 2009 - 04:09 PM.


#10 davebugs

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Posted 22 September 2009 - 04:21 PM

If it doesn't run I'm never able to get codes. Perhaps you will be luckier.

#11 nipper

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Posted 22 September 2009 - 04:24 PM

Car doesnt start as far as the ECU is concerned there are no codes to read, otherwise every time the car cranks it would throw codes.

the code reader is just a tool, NOT the answer to all questions. You still have to do good old fashioned diagnoses to troubleshoot.

Check the timing marks before you try to crank the engine again. You can make a bad situation worse.

nipper

#12 s'ko

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Posted 25 September 2009 - 12:16 AM

well I figured out the no start problem.

timing definately jumped and it looks like the driver's side cam is sticking. I have yet to pop off the heads on this to determine it it's only one side or both.

The first indication that something was amiss was that these little pieces of rubber fell out when I removed the t-belt cover.

Most likely then t-belt might has jumped w/deceleration and then the pistons hit the valves.

What's the likelihood that I will need to replace the pistons as well. I was on the freeway with the engine at 3k rpms.

*sigh*

BW

#13 nipper

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Posted 25 September 2009 - 09:23 AM

Pistons are tough, its the valves that get bent.


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#14 s'ko

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Posted 25 September 2009 - 09:47 AM

well looks like on the down time of getting the heads redone, I will be getting a set of delta torque cams and clean up the casting marks on the heads.




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