TD42 Turbo Rebuild=Serious engine problems
Submitted: Tuesday, May 20, 2008 at 16:59
ThreadID:
57813
Views:
9292
Replies:
5
FollowUps:
5
This Thread has been Archived
dicko1980
Hi
I just recently got my ute back from a complete engine rebuild including the fuel pump, and am now experiencing a problem of lack of power and oil in the cooling system. The oil cooler on the side of the motor has had had new gaskets and seals and been pulled off twice but I am still experiencing a large amount of oil in the radiator. The radiator is new and there is no water contamination in the engine oil. As
well as this the motor has a distinct lack of power. The TD42 has a MTQ Turbo and 3" system and boost delivery is not a problem but on the road the ute will only pull to about 120km/h and the EGT won't climb any higher than about 420C when the throttle is pegged down to the floor. I've had the car at the
shop today and the fuel pump plunger and timing checked out so its not it and the fuel pump was set on
the bench to have an increase of 10% for the turbo. So what's the problem guys I'm open to any help
Cheers
dicko
Reply By: dicko1980 - Sunday, May 25, 2008 at 19:20
Sunday, May 25, 2008 at 19:20
Well the oil problem in the cooling system has been sorted out. When they have been flushing the system they haven't flushed out the heater box at all. Not Happy. As for the lack of power the timing at both the pump and motor has been checked and I have witnessed this. The fuel system has had the filter replaced and lines blown out with compressed air. The next
shop is the pump
shop. The pump was supposed to be setup correctly for the MTQ Turbo and 3" system on
the bench. I suspect that the car isn't getting enought fuel as its slow to come on boost, car tops out at 120km/h max with 420C on the pyro. Am I correct in thinking that the car hasn't been fueled up enough yet?
Cheers
dicko
AnswerID:
305806
Follow Up By: Bob Y. - Qld - Sunday, May 25, 2008 at 20:37
Sunday, May 25, 2008 at 20:37
Dicko,
What about the air cleaner element, has it been replaced? Also I'd checking that they didn't leave a piece of rag or something in the intake somewhere.
Oil will nearly always get into the cooling system first, because of the higher pressure of the oil, if there's a problem.
Good luck with it,
Hooroo,
Bob.
FollowupID:
571901
Follow Up By: Thermoguard Instruments - Sunday, Jun 01, 2008 at 11:49
Sunday, Jun 01, 2008 at 11:49
Hi Dicko,
"I suspect that the car isn't getting enought fuel as its slow to come on boost, car tops out at 120km/h max with 420C on the pyro. Am I correct in thinking that the car hasn't been fueled up enough yet?" Yes, that'd be my guess. If it was an air inlet restriction you'd have high EGT plus poor performance.
Not sure what your position is regarding warranty for the pump work but, if you're prepared to remove the lockwire/whatever, you could try turning the maximum delivery screw in a 1/4 turn at a time and see if it improves the situation.
I presume you have a post-turbo sensor location for your pyrometer? If so, an EGT that gets up to 500-ish after about 15-20 seconds at full load (full throttle up a decent gradient at 2500-ish rpm) would indicate pretty good fuelling IMHO. Please see
here for more
information.
Does your pump have a boost compensator? If so and you wished to send me an email, I might be able to provide some other info to ensure your pump is
well set-up for the turbo - no charge involved.
Hope this helps.
Ian
FollowupID:
572943