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General Information => Troubleshooting => Topic started by: Frank06 on February 28, 2010, 04:25:40 pm

Title: Throttle Shaft Leak Repair - A Question....
Post by: Frank06 on February 28, 2010, 04:25:40 pm

'86 1.6 Jetta with leak around the throttle shaft.  I've removed the *@#&*!* springs and started to push the shaft out through the cover, hoping to see the o-ring.  It seems to be binding a bit on something and I'm not sure how to proceed.  There is some sort of vertical shaft at the rear of the pump with a spring that doesn't let me tip the cover very much to investigate.  Can I remove this?  (What is it anyway?)

Tips, hints, advice, etc. appreciated!

Frank

Title: Re: Throttle Shaft Leak Repair - A Question....
Post by: 745 turbogreasel on February 28, 2010, 04:42:59 pm

http://www.vwdieselparts.com/forum/viewtopic.php?t=6694&postdays=0&postorder=asc&start=0 (http://www.vwdieselparts.com/forum/viewtopic.php?t=6694&postdays=0&postorder=asc&start=0)  Toward the bottom of this post are some pics of what is in there.
Is yours a turbo pump?
this is the o-ring
(http://i290.photobucket.com/albums/ll276/1stGen545/HPIM1780.jpg)

Title: Re: Throttle Shaft Leak Repair - A Question....
Post by: Frank06 on February 28, 2010, 04:59:06 pm

It's a normally aspirated engine.  It sounds like if I remove the vertical shaft on the engine side of the pump that I should be able to remove the cover away from the shaft and access the o-ring.  Does this sound right?  (Thanks for the picture.)   

Title: Re: Throttle Shaft Leak Repair - A Question....
Post by: 745 turbogreasel on February 28, 2010, 05:07:39 pm

You push the shaft into the cover as you pull the cover away from the pump.
then you can unhook the governor.
it is a fiddly proceedure.

Title: Re: Throttle Shaft Leak Repair - A Question....
Post by: Frank06 on February 28, 2010, 05:16:32 pm

OK thanks - do you know what function the vertical shaft serves?  That seems to be making it hard to tip the cover.  Maybe I just have to try harder....   :D

Title: Re: Throttle Shaft Leak Repair - A Question....
Post by: wolf_walker on February 28, 2010, 05:23:42 pm

That thing has the cold start raise the idle linkage on the backside of the pump don't it?  There is a spring and some other stuff in there under the cover if so making it harder to remove.  You can unhook it somehow, can't remember off hand.

Title: Re: Throttle Shaft Leak Repair - A Question....
Post by: Frank06 on February 28, 2010, 05:43:00 pm

I wonder?  The cold start has been disconnected so maybe I don't even need it...   ???

Title: Re: Throttle Shaft Leak Repair - A Question....
Post by: burn_your_money on March 01, 2010, 09:59:46 am

Cold start advance and fast idle are two very different things.