Author Topic: 84 rabbit will not idle. (Read 15385 times)

ashleyroe · « **Reply #60 on:** April 08, 2009, 09:38:08 pm »

Quote from: "burn_your_money"

It sounds like the idle is too low to me, or the timing is retarded.

I haven't read your entire thread so I apologize if this has been covered, but what is the pump timing set at?

How did the diesel tech confirm that your cold start lever is not working?

I couldn't see your pump close enough in the video but being a 84 I doubt it has a fast idle; which makes it pretty hard to determine if the cold start is doing anything or not. If the cable is hooked up and the lever on the back of the pump is moving then the cold start is working. Either that or the advance piston is seized, which does happen on very, very rare occasions.

In the video, the engine was cold right? When it's warm, does it idle or run any different? Have you checked the valve clearance?

Do you have any fuel leaks at the injectors or pump? It could only be running on 3 cylinders. How violently is the engine rocking when it is at the lowest RPM it can sustain?

Get your boyfriend to hold the RPM as low as he can and crack open the injection lines one at a time. If there is no change in RPM then you have a bad injector. Just because they were good on the test stand, doesn't mean they are still good. Injectors are the most finicky thing. The smallest spec of dirt or rust can cause them to stick.

thank you very much. i will check on these points and get back to you.

pump is set .95
yes, after the car is warm it idles fine.

burn_your_money · « **Reply #61 on:** April 08, 2009, 10:27:51 pm »

Quote from: "ashleyroe"

yes, after the car is warm it idles fine.

Have you done a compression test with the engine cold?

If it idles fine warm I think it`s fairly safe to say your injectors or pump are not as likely to be at fault, unless it's air related.

You should hook a clear line up to the feed and return of the pump and look for air bubbles.

What grade of oil are you running?

Does it idle better with the clutch in (engine cold)?

Can you take a clear picture of your pump from the top straight down?

ashleyroe · « **Reply #62 on:** April 09, 2009, 06:23:34 pm »

well the car is fixed!

the load screw had backed out and was loose for some reason.
they turned it back in and it fixed the throttle pedal.
car starts up on first try and idles now.

the idle is still alittle low, so we just need to turn up the screw a tad and we're good to go!

might need an oil pump in the future, oil pressure is borderline when the engine is hot.

thanks for everyone's advice.

theman53 · « **Reply #63 on:** April 09, 2009, 06:46:20 pm »

Sweet! I didn't even think about that. I had the same problem once...I completely forgot.
Now how about the pics of you working on the car

and a new video of the beast running.

ashleyroe · « **Reply #64 on:** April 09, 2009, 06:59:01 pm »

Quote from: "theman53"

Sweet! I didn't even think about that. I had the same problem once...I completely forgot.
Now how about the pics of you working on the car and a new video of the beast running.

coming right up!

theman53 · « **Reply #65 on:** April 09, 2009, 07:05:19 pm »

Even SWEETER!

ashleyroe · « **Reply #66 on:** April 09, 2009, 08:16:30 pm »

i can't bring the car home till next week

i wanna drive it.

jtanguay · « **Reply #67 on:** April 09, 2009, 08:33:18 pm »

for now you can add something like lucas oil stabilizer to keep the oil pressure up, until you change the oil pump.

ashleyroe · « **Reply #68 on:** April 09, 2009, 08:34:49 pm »

good idea, thanks.

burn_your_money · « **Reply #69 on:** April 10, 2009, 08:57:47 am »

Glad to hear you got it running.

When you have the oil pan off to do the pump you should do the main bearings as well.

ashleyroe · « **Reply #70 on:** April 10, 2009, 10:20:00 am »

Quote from: "burn_your_money"

Glad to hear you got it running.

When you have the oil pan off to do the pump you should do the main bearings as well.

i was planning on it, i wanna make sure that engine's in good running order. i don't want to have to worry about it again. i'll probably still send that pump out for a rebuild too around the same time.

burn_your_money · « **Reply #71 on:** April 11, 2009, 10:28:23 am »

Quote from: "ashleyroe"

i don't want to have to worry about it again

Sounds like a Giles pump is in order then

ashleyroe · « **Reply #72 on:** April 12, 2009, 05:29:02 pm »

Quote from: "libbybapa"

What is your hot idle oil pressure? What viscosity of oil are you running?

28.

15-40 rotela t.

ashleyroe · « **Reply #73 on:** April 12, 2009, 07:10:07 pm »

at the flange.

theman53 · « **Reply #74 on:** April 25, 2009, 09:22:54 pm »

let us know what is happening with your car. I can't wait to see the finished product.