Bryan, I just got off the phone with the person who's got my ski. He said that the head does accomodate the cylinder size and pistons. That was the same head that was on before the engine was rebuilt. He thought I had the head or cylinder milled but I did not. I'm still stuck cause he's telling me I'm going to have to run 93 octane (as I did before) but withand octane boost or 93 octane with VP racing fuel mixture. I'd prefer getting the compression down.
Whatever head you put on, you need to have it machined to accomodate your oversize pistons. Out of the box, they are formed for standard size.
___________________
Bryan Glynn
SBT Webmaster
www.sbtontheweb.com
----- Original Message -----
From: George, Timothy C SAJ
To: 'info@sbtontheweb.com'
Sent: Tuesday, September 18, 2001 12:44 PM
Subject: high compression
I just purchased a Kaw 550 standup ski in June and one of the rod bearings blew in late July. I'm fairly new to the PWC seen but consider myself somewhat engine knowledgeable. I recently had a new crankshaft put in my ski. I had the cylinder bored, honed, & chamfered and got new pistons. I have a high performance head. Anyway my compression in one cylinder is about 183 and the other is about 185. I'm told the factory spec's are around 150. I have a problem blowing head gaskets. I have not used any gasket sealer/adhesive. Do you think this would help? I had a stock head put on to see if the compression would go down but it didn't. I don't know how to get the compression down. Idea's???
Thanks,
Tim George
Whatever head you put on, you need to have it machined to accomodate your oversize pistons. Out of the box, they are formed for standard size.
___________________
Bryan Glynn
SBT Webmaster
www.sbtontheweb.com
----- Original Message -----
From: George, Timothy C SAJ
To: 'info@sbtontheweb.com'
Sent: Tuesday, September 18, 2001 12:44 PM
Subject: high compression
I just purchased a Kaw 550 standup ski in June and one of the rod bearings blew in late July. I'm fairly new to the PWC seen but consider myself somewhat engine knowledgeable. I recently had a new crankshaft put in my ski. I had the cylinder bored, honed, & chamfered and got new pistons. I have a high performance head. Anyway my compression in one cylinder is about 183 and the other is about 185. I'm told the factory spec's are around 150. I have a problem blowing head gaskets. I have not used any gasket sealer/adhesive. Do you think this would help? I had a stock head put on to see if the compression would go down but it didn't. I don't know how to get the compression down. Idea's???
Thanks,
Tim George
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