Super Jet cylinder compression issue
- Thread starter Ahmed AN9
- Start date
Barbieri972
CB/T2 Speed Shop
- Location
- Ukiah, California
Are all your head bolts torqued to 18 ft lbs? Seems like you me head gasket isn't sealing by looking at the washed piston and domes
Tyler Zane
Open Your Eyes
- Location
- Panama City Beach, FL
Those bores are toast man, all of your cross hatch pattern is gone. The crosshatch is what keeps a film of oil between your rings and cylinder wall, reducing wear and aiding in sealing. I can only imagine what your rings look like.
Id ditch that 701 62t cylinder for a 61x and replace those 38cc 760 (why are 760 domes on a 701?) domes with 35cc 701 domes to get the 180 psi. compression you want.
Id ditch that 701 62t cylinder for a 61x and replace those 38cc 760 (why are 760 domes on a 701?) domes with 35cc 701 domes to get the 180 psi. compression you want.
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the bolts are torqued to 18 ft lbs and the O rings are new from ADA.
The rings looks fine to me.
I had to install 85mm pistons when i saw that the sleeves bore is 85.1mm. The ski was doing fine but i had some fuel and carburator issues and then after i fixed them, the compression issue appeared.
Do i have to keep using 701 parts and sizes and this cylinder???
Am thinking to install 785 sleeves on this cylinder (62T). Can it happen?
As I found. (62T-Y1) is for 701 and (62T-Y2) is for 760. is that right??
If I have a plan to intall 86mm pistons on the current cylinder, what are the steps I should go through?
BTW, I prefer a racing setup on my ski.
Tyler Zane
Open Your Eyes
- Location
- Panama City Beach, FL
I think you need to open a beer and read the whole tread again. Many people have pointed you in the right direction but your attention span makes me feel like your a dog getting distracted by squirrels.