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TruckersReport.com Trucking Forum | #1 CDL Truck Driver Message Board
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Heavy Duty Diesel Truck Mechanics Forum
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Compression check how to, 1994 Peterbilt w Cummins 855/n14
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<p>[QUOTE="BoxCarKidd, post: 11752360, member: 151415"]That kind of test equipment is expensive. Compression test specs on many diesels are while running. You can call around but I doubt you will find much help even to pay someone with the equipment.</p><p> If I were in your spot I thank I wound find a junk injector. Dump the plunger out. Braze the fuel inlet and outlet ports closed. Braze a fitting on top. Then install a 600 + psi gauge. Not real sure what psi would be acceptable but you are looking for odd ducks. It is unusual but possible that all cylinders went bad at the same time. On some smaller engines I made similar stuff. Knocked the guts out of a spark plug. Then brazed that on an injector or glow plug fitting. That allowed me used a regular gas engine tester that has a check valve in the hose. Just had to use a higher pressure gauge. JD engine about 1/3 that size runs in the 400 - 500 PSI range.[/QUOTE]</p><p><br /></p>
[QUOTE="BoxCarKidd, post: 11752360, member: 151415"]That kind of test equipment is expensive. Compression test specs on many diesels are while running. You can call around but I doubt you will find much help even to pay someone with the equipment. If I were in your spot I thank I wound find a junk injector. Dump the plunger out. Braze the fuel inlet and outlet ports closed. Braze a fitting on top. Then install a 600 + psi gauge. Not real sure what psi would be acceptable but you are looking for odd ducks. It is unusual but possible that all cylinders went bad at the same time. On some smaller engines I made similar stuff. Knocked the guts out of a spark plug. Then brazed that on an injector or glow plug fitting. That allowed me used a regular gas engine tester that has a check valve in the hose. Just had to use a higher pressure gauge. JD engine about 1/3 that size runs in the 400 - 500 PSI range.[/QUOTE]
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TruckersReport.com Trucking Forum | #1 CDL Truck Driver Message Board
Forums
>
The Garage
>
Trucks [ Eighteen Wheelers ]
>
Heavy Duty Diesel Truck Mechanics Forum
>
Compression check how to, 1994 Peterbilt w Cummins 855/n14
>
Reply to Thread