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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: thebob on April 30, 2012, 08:27:35 PM

Title: Crunchy 1st gear, erratic GPI
Post by: thebob on April 30, 2012, 08:27:35 PM
The lower gears sound a bit crunchy as I let out the clutch. The GPI stooped showing 5th and often shows N and 0 when in first.

Is it time to pull off the transmission, and lube the splines, or is it a clutch adjustment and referb the clocks?
Title: Re: Crunchy 1st gear, erratic GPI
Post by: frankenduck on April 30, 2012, 08:43:07 PM
Have you checked the gear oil level in the trans?

The GPI thing is most likely a separate issue and a 25 year old plastic switch falling apart.  They lead a hard life down there.
Title: Re: Crunchy 1st gear, erratic GPI
Post by: thebob on May 01, 2012, 10:47:43 PM
Well the GPI seems to have cured itself. The "crunchy" ness has been troubleshot. I checked the transmission and final drive levels.

The final drive is at the bottom of the threads, but using the handy, dandy line on my C wrench I discovered that the transmission is about 5mm too full. They were both changed about 4,000 km ago and still have a light straw appearance. I'm going to give it a good leaving alone.

I did however find that the heat shield on the exhaust pipe has a broken front bracket. Amazingly all of the hex screws came out without any drama. I have decided to run my brick in superleggera form, or whatever the german may be, and left the stupid, rust prone rattly piece off!

Should I grind off the little brackets?

Is the starter bendix a known problem? My crunchiness is intermittent and usually worst on starting.