As much as I like the truck, it would eat me alive in parts and time. Would it be smarter to buy a used 3b motor with good numbers, and sell this as a rebuildable core? It still drive and runs, but need to get some compression numbers. BTW, what should be the pressure on the injector lines?
3B compression numbers
- Thread starter jfrench
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My old 3B I did compression check on it before turbo and then after.
Before turbo the engine had almost 428,000km and the compression was at:
505, 510, 475, 500. Yes, the tester was a good one and compared to another one and resulted in the same readings. The engine was in great condition and had been religiously maintained all of its life (it's a September 1983 truck).
Drove around for a year then put a turbo on it and ran it for over 70,000 with a turbo at max 14PSI.
The readings after that were between 320-350 across (don't recall exact numbers).
It ran fine but the blow by increased a lot. Continued to run without issues but was retired due to rust and other things at 570,000kms.
Before turbo the engine had almost 428,000km and the compression was at:
505, 510, 475, 500. Yes, the tester was a good one and compared to another one and resulted in the same readings. The engine was in great condition and had been religiously maintained all of its life (it's a September 1983 truck).
Drove around for a year then put a turbo on it and ran it for over 70,000 with a turbo at max 14PSI.
The readings after that were between 320-350 across (don't recall exact numbers).
It ran fine but the blow by increased a lot. Continued to run without issues but was retired due to rust and other things at 570,000kms.