News:

         
Welcome to FJowners.com


It is the members who make this best place for FJ related content on the internet.

Main Menu

this bike

Started by Kopfjaeger, June 18, 2010, 08:47:27 AM

Previous topic - Next topic

Kopfjaeger

now i have this bike. it ate my inlet cam. melted it in the middle and snapped it. i took the head off yesterday. the oil  galley to the cam journal was blocked . so its pretty plain to figure from there. now you guys have been tinkering and play pretty hard in the engine room so i got questions.
what i found:
inlet valves on 1 cylinder are white, pistons 3 and 4 oily carbon build up on heads, no 2 ok but had  a little carbon , all bores look clean engine turns over smoothly pistons sit well in the bores. going to take the barrells off new rings a hone and..... should i go as far as new top end bearings anyway? going to check the pistons for movement and  check the bottom end have pulled the clutch cover off and you can see up into the gearbox from under the lower half the clutch ( nothing broken made this way) and there was no golds or bronzes or greys in the oil remnants after it drained. have you or anyone had experience or knowledge of resleeving an alloy cam journal? i have ideas of line boring it and then making 2 half slipper aluminium bearings? the lower half over size so the top cap locks it in place  so the oil galley doesnt move and get covered over. not sure on the alloy part, thinking bronze half slippers?  just ideas.  also has anyone ran a 900 cc engine  with a 1000 head? the bottom end of this bike is so close to being the same its not funny the only difference is bore and stroke. is it just a case of buying conrods from a 900 and fitting them or is it a whole crank assembly? the thou head has 1mm bigger inlet valves. cam lobes on the 900 and thou are the same on ex cam.  i have a set of 900 barrells and pistons and rings,2 exhaust cams spare.
cheers

andyb

Uh... what the hell bike is it?  That's kinda an important bit to know, y`see.  i'm pretty sure it isn't a 900cc FJ nor a 1000cc version?

To swap heads it depends on what engine series it is, a lot of the older suzuki (GS, GSF, GSX, GSXR) will interchange without much effort.  Kaw also somewhat, the 750 and 900 interchange a lot some years, and the 1000 and 900 also do with some effort some years.

Kopfjaeger

its an 86 Gpz 1000 rx kawasaki. have been through all the manuals for the 900, 750 and 1000 of the gpz series. and i reckon it can be done, was just more so interested in the resleeving of the cam journals and what i should further check. short of splitting the cases ( which i dont want to do) i think ive got most of the checking sorted going to dig deeper today. :mail1: