Date: Mon, 5 Apr 2010 15:16:37 -0700
Reply-To: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Subject: Re: Clutch Cross Shaft Arm Wear. Abnormal? PICS
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hi,
yeah....MT-90, that's the 'normal synthetic vanagon gear oil' these days.
I find the pilot bearing to be 'the' weakest, or most commonly completely
shot, vanagon clutch part.
I make sure that part is nicely lubed with a really high quality bearing
grease.
and a dust seal for the pilot bearing is very important.
without that they go out in as little as two years.
if the van moves when the clutch pedal gets a couple of inches off the
floor..
it's probably getting full disengagement.
If there is a draggy pilot bearing though , even with good hydrucaulics and
correct TOB travel...
there would still be 'not 100 % full disengagement' from the stuck/draggy
pilot bearing.
the last time I saw that in a vanagon ...it would disengage cleanly
sometimes, but not other times.
Typically, it was missing the little metal ring that retains the felt dust
seal used in waterboxer pilot bearings,
and the rollers of the pilot bearing were a real mess.
Scott
----- Original Message -----
From: "neil n" <musomuso@gmail.com>
To: "Scott Daniel - Turbovans" <scottdaniel@turbovans.com>
Cc: <vanagon@gerry.vanagon.com>
Sent: Monday, April 05, 2010 2:35 PM
Subject: Re: Clutch Cross Shaft Arm Wear. Abnormal? PICS
It's a distant memory (2+ years ago) Drove it once. Brake MC was
failing. Thought maybe there was air in clutch hydraulics too. I know
clutch and brake hydraulics are separate, save for the reservoir.
Wishful thinking as such.
Don't recall exactly what clutch pedal felt like, but thinking again,
it's possible it wasn't fully disengaging. The memory of matting the
clutch pedal comes to mind. Nothing hanging up, just a minor crunch,
gear to gear, in all gears. It stayed in gear properly.
Too bad it was a bare interior. So noisy. If there was a bad noise in
tranny, i wouldn't have heard it.
Good pointers on lubes. I have the cross shaft out of clutch housing,
so I can add Moly to those parts.
I"m using this Redline:
http://www.redlineoil.com/product.aspx?pid=46&pcid=7
I'll see if I can't find some Prolong locally (Vancouver B.C.) I'll be
transferring the fairly fresh Redline from transmission currently
installed to "new" one.
Thats great info on the pilot bearing. I was curious about that.
Thought to add a little grease considering I've been swapping trannys.
Neil.
On Mon, Apr 5, 2010 at 2:07 PM, Scott Daniel - Turbovans
<scottdaniel@turbovans.com> wrote:
> hopefully.
> what do you mean by 'catch' going from gear to gear ?
>
> crunch ?
> or sort of hang up ?
>
> If the clutch disengages cleanly, like van does not start to move in gear
> until clutch pedal is say, 2 1/2 inches off the floor ...
> that tends to indicated complete and full clutch disengagement ..
> and if that's the case , then any crunching would be more like a worn
> syncro
> issue.
>
> I also find draggy/dry/worn shift linkage on vanagons a lot. Like people
> are driving them that way, and since they don't drive other vanagons with
> smooth well lubed and adjusted linkage , they don't even realize how
> draggy/dry their linkage is.....
> not that that applies to anyone on this list of course !
>
> For minor gear shift crunching ....I have improved or reduced that with
> Prolong Transmission Oil Additive. I like that stuff added to Redline
> MT-90.
> I'm amazed at how well grease seems to stick on surfaces and lube them for
> a
> long time.
> I use a really good synthetic grease in the pilot bearing ..
> like I have some Redline red grease - I use that on the pilot brg.
> but for sliding surfaces in the clutch mechanism I use 'black slimey'
> molygraph grease.
>
> for the cross shaft bushings...a really good synthetic penetrating spray
> grease. Until the shaft just flops around practically ...it's so well
> lubed.
>
> same for the clutch pedal pivot and clevis ..spray up in there.
> it's bare metal to metal on the clevis pin in the clutch pedal - very
> cheap
> construction for sure, especially since you can barely get to it to lube
> it
> , and they do wear out there - mostly on syncro vanagons though.
>
> Scott
>
> ----- Original Message ----- From: "neil n" <musomuso@gmail.com>
> To: "Scott Daniel - Turbovans" <scottdaniel@turbovans.com>
> Cc: <vanagon@gerry.vanagon.com>
> Sent: Monday, April 05, 2010 1:41 PM
> Subject: Re: Clutch Cross Shaft Arm Wear. Abnormal? PICS
>
>
>> Nice to know it's only wear and tear. Albeit premature. Hopefully the
>> fact that this transmission would catch a little shifting from gear to
>> gear was due to poor clutch hydraulics.
>>
>
--
Neil Nicholson '81 VanaJetta 2.0 "Jaco"
http://tubaneil.googlepages.com/
http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines
