super99
Well-known Member
Can you do a compression test on a motor that has set several years and get an accurate reading?? I have a motor for my Oliver 88 that I bought 4 or 5 years ago and it has set in the shed all of this time. I gave it a few squirts of oil in the plug holes and turned it once in a while so be sure it was free yet. I have it in the tractor and 3 of the old plugs that were in it are oil fouled pretty good. I'd like to do a compression test before I try to start it or would I get a better reading if I start it first, run it a bit and then do the test? I usually take the plugs out and crank it 10 puffs and read it and then give them a squirt of oil and repeat to compare the readings. What say ye??