danholl Posted December 30, 2014 Posted December 30, 2014 Hi all, My first post so bare with...I am currently replacing the head gasket on my zxr400, just a few things I need to get my head around.1)can I re use the head bolts or do they need to be replaced?2)cam timing information? any information on this would be great as I am clueless haha 3) any general information on replacing head gasket on the zxr400 would be greatThanks in advanceDan Quote
Stu Posted December 30, 2014 Posted December 30, 2014 pretty sure they are stretch bolts and need to be replaced get a new cam chain as the chain on your L1 will have stretched by now and it will run miles better with a new one download a manual for the bike the timing is really easy to set on the zxr just follow what it says in the manual take your time clean everything up and just make sure its all right Quote
danholl Posted December 30, 2014 Author Posted December 30, 2014 pretty sure they are stretch bolts and need to be replaced get a new cam chain as the chain on your L1 will have stretched by now and it will run miles better with a new one download a manual for the bike the timing is really easy to set on the zxr just follow what it says in the manual take your time clean everything up and just make sure its all right cheers for the fast reply matey and thanks for the info Quote
Stu Posted December 30, 2014 Posted December 30, 2014 I did the camchain on my L1 when I had it and they are a right twat to get the chain out from the bottom sprocket! as there is a piece of solid metal there to stop the chain jumping! it has to be lined up perfect and slid out or new chain and just cut the old off Quote
danholl Posted December 30, 2014 Author Posted December 30, 2014 I did the camchain on my L1 when I had it and they are a right twat to get the chain out from the bottom sprocket! as there is a piece of solid metal there to stop the chain jumping! it has to be lined up perfect and slid out or new chain and just cut the old off bloke who i had it off before i brought it said that he rebuilt the engine, done about 4000 miles since ive had it. still think it is worth changing ? Quote
Stu Posted December 30, 2014 Posted December 30, 2014 if he rebuilt the engine then why is the head gasket needing changing? IMO he hasnt done a good job I would replace Quote
danholl Posted December 30, 2014 Author Posted December 30, 2014 if he rebuilt the engine then why is the head gasket needing changing? IMO he hasnt done a good job I would replace its pissing out water and steaming, im not sure when he rebuilt it, not sure whether he just finished rebuilding it then sold it me or he rebuilt it done a few thousand miles on it then sold it me just said he rebuilt italright mate cheers Quote
Stu Posted December 30, 2014 Posted December 30, 2014 doesnt sound like he has done a good job! I think you would be best bunging another motor in personally as your head could be warped hence the leak and steam for the sake of 30 odd quid I would replace it http://www.ebay.co.uk/itm/Kawasaki-ZXR- ... 4d2a0fefc5 they do stretch over time never heard of one snapping though Quote
danholl Posted December 30, 2014 Author Posted December 30, 2014 doesnt sound like he has done a good job! I think you would be best bunging another motor in personally as your head could be warped hence the leak and steam for the sake of 30 odd quid I would replace it http://www.ebay.co.uk/itm/Kawasaki-ZXR- ... 4d2a0fefc5 they do stretch over time never heard of one snapping though i'll be sending the head of to be skimmed and yea true best to do it as it is all out Quote
Stu Posted December 30, 2014 Posted December 30, 2014 hopefully it hasn't been skimmed already I very much doubt it though Quote
danholl Posted December 30, 2014 Author Posted December 30, 2014 hopefully it hasn't been skimmed already I very much doubt it though why cant you skim them twice? Quote
Stu Posted December 30, 2014 Posted December 30, 2014 depends how much material has been taken off if you take too much off the piston will contact the valves or head you can get thicker gaskets to compensate but thats usually just for one skim Quote
danholl Posted December 30, 2014 Author Posted December 30, 2014 depends how much material has been taken off if you take too much off the piston will contact the valves or head you can get thicker gaskets to compensate but thats usually just for one skim dont suppose there is a way to tell if it has been skimmed before is there?if it has then there is 150quid down the drain maybe more Quote
Stu Posted December 30, 2014 Posted December 30, 2014 sometimes you can tell by machining patterns on the head! the machine shop should be able to tell you Quote
danholl Posted December 30, 2014 Author Posted December 30, 2014 sometimes you can tell by machining patterns on the head! the machine shop should be able to tell you cheers mate hopefully i can get it done and fixed, another motor is expensive Quote
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.
Note: Your post will require moderator approval before it will be visible.