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Crunchy into 3rd

Posted: Mon Feb 25, 2013 8:29 pm
by Buzz
I have noticed a problem pulling into 3rd gear. I get the crunch nearly every time but it seems to go away once I have run on the highway and everything is warmed up.
I should mention that last summer I had to disassemble the clutch to reattach the throw-out bearing to the fork. The push rod had actually broken and left the ball end in the fork.
So, suggestions? Is the throw out bearing on the loose again or is there something else to check?
Thanks for your time. - Buzz

Re: Crunchy into 3rd

Posted: Mon Feb 25, 2013 10:31 pm
by Jim LaGuardia
my bet is a flat syncro ring.

Re: Crunchy into 3rd

Posted: Mon Feb 25, 2013 10:44 pm
by Buzz
Yes, the synchro is strong probability. Is it totally unbelievably incredibly impossible to do myself?
On only just terrible?

Re: Crunchy into 3rd

Posted: Tue Feb 26, 2013 7:40 pm
by Jim LaGuardia
No offense, but unless you are highly skilled and have the proper pullers, splitters and a press, it would not be easy or fun.
On the upside, all the internal parts are available and most of the gaskets.

Re: Crunchy into 3rd

Posted: Tue Feb 26, 2013 10:41 pm
by Buzz
No offense taken. I looked in the manual. I would need a boat load of new tools ( not all bad) and new skills. Double clutching is working for now, but at some point I will need to get th hing rebuilt. Thanks for your response. No one likes bad news but good information is a big help.

Re: Crunchy into 3rd

Posted: Tue Feb 26, 2013 10:47 pm
by VinceAtReal4x4s
By no means a solution, but I've actually had this issue mostly disappear by using MT90 Redline. It might help till it can be repaired fully.

Re: Crunchy into 3rd

Posted: Wed Feb 27, 2013 8:44 am
by Buzz
Thanks Vince. It's worth a try.

Re: Crunchy into 3rd

Posted: Fri Mar 15, 2013 1:43 pm
by Buzz
Well, I finally got the time and materials to try the MT 90 that Vince suggested. It definitely helped. Shifting into 3rd is better, not perfect, but better. And shifting overal is certainly improved. I wish I had tried it years ago. Thanks Vince!

Re: Crunchy into 3rd

Posted: Fri Mar 15, 2013 7:24 pm
by VinceAtReal4x4s
Nice to hear! The question is, if you had done it years ago, would you have the same problem now? What Amsoil and Redline have done over the last 15 years is pretty impressive and they keep pushing it. It's amazing that you can test a trans. for heat before and after and always see a reduction in operating temps simply by changing the oil to this stuff.

I have to wonder if all the emerging nano-tech research will lead to even more advanced oils that could, in theory, keep a motor/trans. wear-free almost forever? I saw a demo recently of a piece of nano-armor that had been made directly from the nano fiber research that's being done. It looked like a piece of 1/2-3/4 plywood but weighed less than wood. It stopped a .223 round point blank.

Re: Crunchy into 3rd

Posted: Tue Mar 19, 2013 4:36 am
by VinceAtReal4x4s
Oddly enough, I just ran across this Tribology article: http://www.popsci.com/science/article/2 ... rgy-system