Recent Posts

31

IDI Engine / Re: 1.6IDI Not Fully Rotating/Not Starting

« Last post by RabbitJockey on March 21, 2024, 12:06:13 pm »

those cracks are usually normal.

I'd consider the condition of the engine as a factor on whether or not i'd do rings. they're cheap to do while you're in there though.

32

IDI Engine / Re: Awakened from a long slumber....

« Last post by westcoaster on March 20, 2024, 11:38:04 pm »

Yup, Death Wobble...

Imagine the front wheel on a shopping cart wobbling back and forth but instead on the front wheels of a vehicle.
Funny enough, in my search for the cure, I found new Ford Superduty trucks also seem to have this affliction....

I think I was able to "patch up" the death wobble by removing the front leaf spring bushings and rotating them 180* in the springs and frame.

The rubber had sagged where the bolt wasn't in the centre of the bushing any longer.
Tightened up the spring shackles and took it for a run. Seems to be "better" for the moment.

33

IDI Engine / Re: 1.6IDI Not Fully Rotating/Not Starting

« Last post by Mohatanous on March 20, 2024, 09:35:08 pm »

Update:

I haven't had a lot of time to work on my car lately, but my head guy found that there were two cracks in the head between the valves on cylinder's 1 and 4. I'm going to have the head fixed and then pressure tested to ensure that it will be usable, so by the time I get it back it will basically be a brand new head.

Should I do piston rings since I'm getting the head redone to this degree? If so, anywhere specific to get good rings? Thanks in advance!

34

IDI Engine / Re: Awakened from a long slumber....

« Last post by ORCoaster on March 19, 2024, 09:45:42 pm »

I second that MMO addition and if it is behaving itself for now drive it a bit and get it warm enough to dry out the exhaust system.  When they get wet and are all dingy inside, they can have a black wet look out the tailpipe. 


Death Wobble??   Maybe this isn't the time to dry out the exhaust with a good long ride.

35

IDI Engine / Re: Awakened from a long slumber....

« Last post by westcoaster on March 18, 2024, 09:48:53 pm »

It was pretty wet at the tip of the tail pipe, almost dripping.
I suppose it could have been condensation. There was no particular odour to the liquid. It could have been purging the residual 6 year old diesel out of the system and somehow excessive moisture was produced.

It is running clean(er) now.
Sat and cooled over night and the next day things had cleaned up considerably.
I had also run it to the governor limit a couple times for a few seconds the evening it was having its issues.

Some MMO might not be a bad idea...

With the motor doing better I have shifted my focus to the death wobble this thing has now developed.

 

36

IDI Engine / Re: Awakened from a long slumber....

« Last post by RabbitJockey on March 18, 2024, 01:45:46 pm »

i agree with fatmobile, my first guess would be bad turbo seals on the exhaust side.

marvel mystery is a great additive, i'd recommend even putting some of it in your fuel.

how wet is the exhaust and are you sure its oil? cause water is a natural byproduct of combustion, and diesel smell bad either way

37

IDI Engine / Re: Awakened from a long slumber....

« Last post by fatmobile on March 17, 2024, 11:22:49 am »

I think a diesel will burn oil like you were feeding it diesel.
Some people put used oil in their diesel tank and it doesn't end up with oil in the exhaust.

 If it's entering the exhaust as wet oil, I would think it's a turbo seal leaking oil into the exhaust.

38

IDI Engine / Re: Awakened from a long slumber....

« Last post by westcoaster on March 16, 2024, 10:59:21 pm »

Not an inlet turbo seal....

Removed the rubber 90* intake elbow from the turbo, started the engine, gave it a couple minor revs with a paper shop towel in front of the turbo outlet (intake air) and not a drop of oil was found on the towel....

Edit: the burning oil smell on startup leaves rings or valve guide seals.

I'm leaning toward valve guide seals as there is a strong odour of burnt oil immediately on startup that dissipates after running for a bit...

39

IDI Engine / Re: Awakened from a long slumber....

« Last post by westcoaster on March 16, 2024, 10:42:39 pm »

Correct, It hasn't been insured since 2018 but has been started intermittently since then.
4?, 5? 6?? times... No particular schedule, just whenever I think of it. Brought it up to temperature then shut off.

I can check the inlet turbo seal.

Would the white towel held up to the exhaust flange simply tell you that the engine is processing oil and not differentiate between rings, valve guide seals or turbo seal?
Not sure how removing the exhaust flange will tell me any difference? (post turbo)

Yes, it's been a couple days since I have last been on here...

40

IDI Engine / Re: Awakened from a long slumber....

« Last post by ORCoaster on March 16, 2024, 10:08:35 pm »

So you haven't insured it for a long time but have you been starting it every so often in the last several years?

I can tell you that if your turbo seal is blown you can pop off the exhaust flange on it and you will see the oil on a white towel held up to the outlet when you race the engine.  That is for the exhaust side. 

Pop the inlet hose off and do the same on the blower side just before it goes into the manifold.  Don't do what I did and just remove the hose and race the engine.  My turbo uses that quick 90-degree bend hose that goes to the manifold and I got a nice spray in the face as I leaned over the IP to race it up.  Put up a towel to keep from being blasted.

As for valve guides, they can become dry and maybe get soft again once you run them some.  The danger there that I can see is that you may wear them adversely and they will never seal up again.  Kind of a catch-22 where you need to run the engine to get them oiled but in doing so you may mess them up.

Rings might be a problem too.  Running the engine should get those to work as they should but at times I have heard that they get bound up when they dry out and they don't expand like they should.  Might be from the coke in the burn of the diesel that does that. 

Nice to see you back on the forum after all this time.