Maintenance & Technical > KX500 Original
MONUMENT TO THE 2-STROKE, PART 2 - FINAL ASSEMBLY
Motorrad:
perhapse your head and Jug were warped... together.... now your head is TRUE and straight.. and your Jug isnt..
As far as I know... no plater checks the gasket surfaces for warpage.. so just because you sent it to them.. doesnt mean anything.. Its your job to check that stuff.
also i like to torque the head like the kips end of the head wasnt there... just torque it like a normal head... .then torque the kips portion last...
a cut and paste from my motor build.. head was TRUE...
Checked the fit of the head to barrel... (while waiting for crank to get cold in the freezer, and sockets to get hot in the oven)
Which resulted in
Lapping the head to the barrel..
And put the crank in the cases... (Hoooray, bottom end is DONE).
Motorrad:
also forgot to add... Im not a fan of the OEM Fiber gaskets..
DoldGuy:
--- Quote from: Motorrad on June 29, 2011, 04:40:18 AM ---perhapse your head and Jug were warped... together.... now your head is TRUE and straight.. and your Jug isnt..
As far as I know... no plater checks the gasket surfaces for warpage.. so just because you sent it to them.. doesnt mean anything.. Its your job to check that stuff.
also i like to torque the head like the kips end of the head wasnt there... just torque it like a normal head... .then torque the kips portion last...
a cut and paste from my motor build.. head was TRUE...
Checked the fit of the head to barrel... (while waiting for crank to get cold in the freezer, and sockets to get hot in the oven)
Which resulted in
Lapping the head to the barrel..
And put the crank in the cases... (Hoooray, bottom end is DONE).
--- End quote ---
+1, Check the cylinder & the Head. I am sure you will find that at least one is not flat.
Just my $.02
DoldGuy
delphipro5:
It would have been my job to check if I didn't have some one else rebuild the engine! I thought he might have known a little bit about this being an engine guy. I retourqed the head nuts with the engine mounts loose and I went up to 22 ft-lbs. and they did not budge. so i think he may have overtightened them and caused it to leak! we shall see if what i did today helps. I WILL NEVER AGAIN LET ANYONE TOUCH ANY OF MY STUFF.... I guess I have finally graduated to doing it all myself if I am to take on anything like this again. Should have known that trying to save myself time I would have cost myself time. Not my first rodeo but I acted like it was and now it's biting me in the ass!
Friar-Tuck:
Polar, I'm sorry I don't understand what difference is if your using a steel frame or an aluminum frame.
I have no formal training, and don't want to spread bad info, so I am wide open to finding out the truth.
The head gets torqued to the cyl and then the head stay is tightened. Are you saying the head stay is pulling the head away from the cyl. and causing the leak due to frame flex? It seems hard to believe, but hey stranger things have happened...
And if this is the case, what is the corrective action?
Thanks for your patients, I like I said I don't want to spread bad dope.
Ohh Dear.... What the heck, No more posting until AFTER my meds kick in!
Thank you again MoRad for the Photo layout, a pic is worth a thousand words!!
Tuck\o/
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