Date: Mon, 23 Nov 2015 13:17:42 -0800
Reply-To: Neil N <musomuso@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Neil N <musomuso@GMAIL.COM>
Subject: Sticking Clutch Disk: Lubing Transaxle Input Shaft,
Transaxle Installed.
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>.... What I did: slide transaxle away from the
> engine, use inspection mirror to help in applying a little lube to very end
> of input shaft splines......
> .... I haven't put a lot of highway miles on it
> yet, it shifts much better and no "thud" when starting in gear, engine
> cold.
So some miles later, it seems that even though shifting improved
dramatically, adding lube between input shaft and clutch disc splines
did not solve the issue. I think time and heat exacerbates whatever is
wrong. With the engine cold, the clutch is now starting to "thud"
again. I'm sure the same poor shifting issue will crop up again. I
suspect something is wrong with the clutch disc lining.
Just posting this in case someone else wants to try the same thing.
Neil.
On 10/5/15, Neil N <musomuso@gmail.com> wrote:
> I had long suspected that the clutch disk on my '88 was sticking on the
> input shaft.
> Symptoms: starting engine cold, in gear clutch pedal down, I'd hear a
> "thud" and the bus would lurch forward a bit. I'm certain this was the
> clutch disk releasing from pressure plate. For a while it shifted fine but
> eventually it was tough to get bus in 1st at a stop light and it would
> "stick" in gear shifting from gear to gear. I didn't know which parts were
> getting hurt when doing this but as per Pauls' comment, all I could see was
> something on each syncro getting damaged each time I pulled it out of gear.
> Bleeding clutch didn't help. What I did: slide transaxle away from the
> engine, use inspection mirror to help in applying a little lube to very end
> of input shaft splines. There was enough room to check that throw out
> bearing was properly secured, spin it a little to see how worn it was
> (careful; don't knock it loose!) and, I could do a quick inspection of the
> clutch operating shaft arms. I left CV's attached. A piece of thick steel
> between support blocks and transaxle helped allow transaxle to slide.
> Something like a piece of wood with counter top laminate might allow same?
> A bottle jack was handy to tweak engine height at end nearest transaxle
> when pushing the transaxle back on.
> There was also enough room to *just* see the end of the input shaft where
> it rides in pilot bearing. In my case, it was a bit shiny. In hindsight I
> wish I'd tried to apply a ***small*** amount of grease to that part of
> input shaft. Regardless, though I haven't put a lot of highway miles on it
> yet, it shifts much better and no "thud" when starting in gear, engine
> cold.
>
> Neil.
--
Neil n
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