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compression tester and numbers
Where to find a compression tester for sale for a 24 valve and a common rail also and what should my compression be at
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Diesel Compression Tester Set - 14 Piece
Here is the one I have. Includes adapters for these engines: Ford/Navistar 6.9/7.3 liter engine Audi, Volvo, VW, Cummins 5.9 liter, M-B cars & trucks with 24 MM ports V-185, 210, 225, 555, VT-255, 555 Bacharach adapter M-B 18 MM (prior to 1978) M-B 12 MM (1978 and up) Majority of H-D tractor diesel engines including Allis Chalmers, Case, Deere, Ford, I. H., Mack, Onan, Waukesha Cummins V-6, V-8, V-12 BMW 2.4 liter, Lincoln (Mark-VII) 1984 & 1985, Peugeot 12 MM/18MM Chevy Luv 1.8/2.2 liter, Isuzu 1.8/2.2 liter, Toyota 1.8 liter G. M. 4.3/5.7/6.2/6.5 liter (turbo) Detroit Diesel 53, 71, 92, 110, 149, V53, V71 Cat D-336, 1674, 1676, 3406, 3408, 3412 (capsule-type nozzles) Case, Cat, Deere, Waukesha ---AutoMerged DoublePost--- I don't remember the numbers off hand. Maybe someone will chime in before I get it. |
Thanks much appreciated i will be gettin one of those here soon. Anyone know how much compression 24 valves should have?
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Dodge Cummins Compression Test
No published numbers for the compression specs. Lot of variables come into play... If you have altered the motor in some way, different pistons in race motors (decompressed) etc, your numbers will be lower. 16.3: 1 motors like the auto tranny motors that are SO, they will be slightly lower than the common rails and the HO 01 and 02 motors that have 17:1 compression ratios. All in all, you are really going to have to look at this on an individual basis.. In general, you are going to want to see at least 375 psi all across the board. In real life, 9/10 when you check a motor that runs good it will be above 400 , 450 500 psi depending on the motor. Shouldn't see too much of a variance between two adjacent cylinders, if you do it is often indicative of a head gasket combustion leak. Normal to do both a leak down and a compression test if you are trying to find a problem. |
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