Author Topic: What to do while my motor is out?  (Read 171 times)

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Offline GHtokyo

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What to do while my motor is out?
« on: March 13, 2017, 12:57:51 PM »
HI Everyone,
I revived a '68 350 GTR last year, and like an idiot, I over-torqued the exhaust flange cracking a piece off the left cylinder.   :'( So that is getting welded at the machine shop.  Besides replacing the gaskets, checking piston and ring clearances, I'm wondering if I should inspect anything on the bottom end while I have the motor out of the frame.  What are the common issues with these motors to look for?  The motor was running well, but there was some oil leaking on the left side, spraying on my left pant leg as I rode.  It looks like it was coming from the base gasket because there's lots of built up crud around there.


Offline old smokey

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Re: What to do while my motor is out?
« Reply #1 on: March 14, 2017, 12:00:42 AM »
Hi, welcome to the Bridgestone site.
A nice starting point with that GTR there.
Did you buy that from Alex in WI?
The photo looks familiar from an ad I've seen before.
'67 350 GTR undergoing repairs with a '75 Yamaha TX500 front end

Offline Harry

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Re: What to do while my motor is out?
« Reply #2 on: March 18, 2017, 03:28:36 PM »
Nice looking GTR.  If you have the owners manual it would be good to read through it.  Even better is the shop manual.  This site has one that you can download.  Check it out. And welcome to the site.  With so many stoneheads it's got great info.  Harry

Offline grundlegrabber

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Re: What to do while my motor is out?
« Reply #3 on: March 18, 2017, 11:07:53 PM »
While the engine is out, I'd advise replacing the rubber mounts. The bottom mounts are pressed in to the frame from the top down. Engine needs to be out to remove & replace them. The rubber in the mounts deteriorates from age & oil contamination. All of the other mounts can be replaced with the engine in, but it's easier when engine is out.



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