SWEDE
New member
Word is that a leakdown test will tell the story in a 2 cycle more than a compression test.
10,050 update
- Thread starter s fortuna
- Start date
daman
New member
Give that man a ciiiiigaaaaar!!!SWEDE said:
03viperguy
Moderator
do I NEED a leakdown tester, or can you make it work with the comp tester? I know that one trick is to add oil in the plug hole and see if goes up and stays there, or something like that???
daman
New member
A LD tester 03 is easy to come by,check on line or at your local auto parts store,there not too expensive and a good tool to have in the tool box for routine maintenance.
i run a test every few seasons.
i run a test every few seasons.
bluemonster1
LIFE MEMBER ONLY ONCE!!!
yeah I put oil in the holes and my numbers raised up.This was when sled was sitting and cold to.
03viperguy said:
A compression or even leak test will not tell you cyl. to piston clearances. It only tells you how well the rings are sealing. Large increases in compression numbers or reduce leakage percentages when performing the test wet directionally indicate excessive cyl. to piston clearances, ring end gap or ring land wear, but the only real way to check clearances is to measure.
At big miles, your biggest worry is a worn piston (barrel shaped) rattling in the bore and breaking off the bottom skirt. At 9k, even if the piston diameter is in spec, I'd guess they're on the small side. I'd probably be fitting new ones. Much cheaper now than when a piece of piston ends up in the crankcase. Not much room down there.
If I were Viperguy, I'd ride it 'til the end of this season without much worry and spend the summer collecting parts. Big question to me would be do you split the case while you've got the cylinders off. Seems to be a few crank bearings going this year especially on Vipers.