Money Pit Posted December 6, 2006 Report Share Posted December 6, 2006 I have a pro design cool head and have had it checked by a machine shop and the jugs checked everything is true and not warped. I can get 20 minuites to a ride before the coolant is dumped the cylinders I have been racing this banshee for 4 years it's a 2001 and I bought it brand new this head has been on for 2 years (2nd head). why does this keep happening, does anyone run copper washers on top of the head under the head nuts I'm thinking the nuts are grinding into the aluminum head i can see groves and is giving me a false torque reading. Also I was informed to lube the studs with SAE 30 weight oil this also keeps from a false torque reading any help would be appreciated thanks. Quote Link to comment Share on other sites More sharing options...
chevy7398 Posted December 6, 2006 Report Share Posted December 6, 2006 I have a pro design cool head and have had it checked by a machine shop and the jugs checked everything is true and not warped. I can get 20 minuites to a ride before the coolant is dumped the cylinders I have been racing this banshee for 4 years it's a 2001 and I bought it brand new this head has been on for 2 years (2nd head). why does this keep happening, does anyone run copper washers on top of the head under the head nuts I'm thinking the nuts are grinding into the aluminum head i can see groves and is giving me a false torque reading. Also I was informed to lube the studs with SAE 30 weight oil this also keeps from a false torque reading any help would be appreciated thanks. puttimg lube on the studs gives you a more accurate torgue reading as you are not seeing the added drag from a rusy or dry stud or nut, did you try getting a new oring set instead of using the old ones Quote Link to comment Share on other sites More sharing options...
jankab Posted December 6, 2006 Report Share Posted December 6, 2006 I have a pro design cool head and have had it checked by a machine shop and the jugs checked everything is true and not warped. I can get 20 minuites to a ride before the coolant is dumped the cylinders I have been racing this banshee for 4 years it's a 2001 and I bought it brand new this head has been on for 2 years (2nd head). why does this keep happening, does anyone run copper washers on top of the head under the head nuts I'm thinking the nuts are grinding into the aluminum head i can see groves and is giving me a false torque reading. Also I was informed to lube the studs with SAE 30 weight oil this also keeps from a false torque reading any help would be appreciated thanks. If the head is flat (and has been checked by a machine shop) I bet the cylinders are not Quote Link to comment Share on other sites More sharing options...
NYUK Posted December 6, 2006 Report Share Posted December 6, 2006 dump the pro design head. too many o rings, too many spots for something to go wrong. get a head that doesn`t use an o ring for every stud. Quote Link to comment Share on other sites More sharing options...
Money Pit Posted December 6, 2006 Author Report Share Posted December 6, 2006 Which head do you reccomend Quote Link to comment Share on other sites More sharing options...
okbeast Posted December 6, 2006 Report Share Posted December 6, 2006 NOSS is a sponsor here on the site, he sells cool-heads and will give you a great deal. Quote Link to comment Share on other sites More sharing options...
scooter Posted December 7, 2006 Report Share Posted December 7, 2006 i dont know about pro design but noss heads come with copper washers Quote Link to comment Share on other sites More sharing options...
NYUK Posted December 7, 2006 Report Share Posted December 7, 2006 i always thought the trinity head was a good simple design. i like their girdle head. Quote Link to comment Share on other sites More sharing options...
Money Pit Posted December 8, 2006 Author Report Share Posted December 8, 2006 O.K. I've learn't some new information on this site I think the reason the head is leaking is because when I was racing I was rinning VP110 recently I've been running 93 This could explain why I can ride about 20 min before the head lets go pressure is constantly building up but on the flip side it was only one cylinder that keeps getting antifreeze in it could the fuel be the problem I have a set of 22cc domes i'm going to try them with a new 0-ring set and I bought some brass washers to put under the head bolts well wish me luck Quote Link to comment Share on other sites More sharing options...
banshee9o9 Posted December 8, 2006 Report Share Posted December 8, 2006 yeah same thing happened to me o ring on the coolhead fucked up and leaked antifreeze into my cylinders and filled both of my toomeys up talk about a PITA so im switchin out for a NOSS head Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.