09-23-2024, 11:22 AM
Thank you TF175 and thanks to Igor Chudov, That is going in a binder in the coach, very nice.
I'm rethinking my approach here:
The turbo spins and has no free play, the engine always starts but sometimes stumbles down and stalls when left to idle or if it's revved up for a bit and then let go to idle it will also stumble down and stall. There is about 150 gallons of fresh diesel in the tank now, and both fuel filters are changed. At full throttle it will just barely make second gear and about 20mph and zero boost on the gauge. I don't see anything obvious in terms of exhaust or boost leaks and for the power to be this low they would have to be massive leaks, right?
There is a local shop near Quincy IL. that says they can tow it and "maybe" has access to an oldtimer who knows 8v92's
Before I throw in the towel and call for a tow & a "maybe" mechanic, and mainly just because of pure Scottish stubbornness, I think there are at least two tests that I would like to get some feedback on, from you gurus.
I think these were mentioned earlier:
1, Pull the fuel line off the secondary filter and run it to a fresh diesel tank, if this resolves the problem, we know it's upstream, if it does not fix the problem, we can assume it's downstream (perhaps the fuel pump) or not related.
2, Pull the vale cover and check that I have full travel on the injector control tube under throttle, if I do, it is probably not the governor, if I don't, it indicates the governor isn't allowing full fuel when I'm at full throttle.
Do these two tests make sense to you? Any other you would suggest???
Thank you all for your help here, this one is going to be a lot of work, but I think it's worth saving it. I'll post the coach number as soon as I figure that out.
I'm rethinking my approach here:
The turbo spins and has no free play, the engine always starts but sometimes stumbles down and stalls when left to idle or if it's revved up for a bit and then let go to idle it will also stumble down and stall. There is about 150 gallons of fresh diesel in the tank now, and both fuel filters are changed. At full throttle it will just barely make second gear and about 20mph and zero boost on the gauge. I don't see anything obvious in terms of exhaust or boost leaks and for the power to be this low they would have to be massive leaks, right?
There is a local shop near Quincy IL. that says they can tow it and "maybe" has access to an oldtimer who knows 8v92's
Before I throw in the towel and call for a tow & a "maybe" mechanic, and mainly just because of pure Scottish stubbornness, I think there are at least two tests that I would like to get some feedback on, from you gurus.
I think these were mentioned earlier:
1, Pull the fuel line off the secondary filter and run it to a fresh diesel tank, if this resolves the problem, we know it's upstream, if it does not fix the problem, we can assume it's downstream (perhaps the fuel pump) or not related.
2, Pull the vale cover and check that I have full travel on the injector control tube under throttle, if I do, it is probably not the governor, if I don't, it indicates the governor isn't allowing full fuel when I'm at full throttle.
Do these two tests make sense to you? Any other you would suggest???
Thank you all for your help here, this one is going to be a lot of work, but I think it's worth saving it. I'll post the coach number as soon as I figure that out.
TerryW 86 8V92