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Old 03-18-2018, 06:06 PM
RedArrow RedArrow is offline
Senior Member
 
Join Date: Jan 2013
Location: New York
Vehicle: 1986 Volvo 745 TD
Posts: 900
Default Re:AIR

I recently had leaky injector nipples (4of6 injectors) AND multiple of injector return lines were worn at the end, those thin rubber hoses didnt seal right and they were constantly letting air into the fuel (and in injector pump)
No matter what I did with the pedal, the car would not want to rev above 2500rpm. But i was able to drive it for weeks like that. Since I jb welded the loose injector nipples and changed the return lines to the proper German ones, there is no air and it revs as it should. Also the filter housing bleeder valve (bolt) can be faulty (I had that because the thread got stripped).

I was about to open a new thread to ask why my car wont rev but the problem stopped after connections at injectors got fixed.

If you had recently added a new fuel hose or even just a hose clamp on that fuel line between the filter and the pump then re-checking them is a good idea. Mine lets air in bc of a small hose clamp that I added at the upper area where the hose reaches the IP banjo. Why? Because I could not find the proper inner diameter of a clear, diesel-tolerant hose... so I used a regular 1/4 US version, with a clamp to secure it.

The only thing I cant understand now is why my turbo spools so high at 65-70 where long ago I could do higher speeds 75-85mph at lower spools of the same turbo and same setups except the bigger gtd injectors.

Shall I advance the timing a bit? Add fuel by turning the pump up? Idk...ideas are welcome



Those 262c Bertones sat for about 10 or 15 years before you took them. The owner is a true dieseler and he put them together very well. They must be stable d24t motors in there! I hope he is doing fine too!
Could you use a jar under the hood and see if it runs well (or better. )
Post pictures and videos...you have interesting diesel volvo cars.

Last edited by RedArrow; 03-18-2018 at 06:12 PM.
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