Date: Sun, 16 Dec 2012 09:18:16 -0800
Reply-To: Alistair Bell <albell@SHAW.CA>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Alistair Bell <albell@SHAW.CA>
Subject: Re: syncro propshaft delrin bushing update
In-Reply-To: <CAB2RwfjbVWX-TUWYTbN4V7H0MNFa4n6LBZj3-30rRm7WfSRS7A@mail.gmail.com>
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Neli,
first off, the U-joint used in the stock propshaft is quite rare over here, so some sort of knowledge is needed to find a suitable substitute. So I would guess that when u-joints wear out, many syncro owners choose to shaft replacement over u-joint work. Err, what I am trying to say is that owner replacement of joints may be not as common as you think.
That given, if you did want to replace the u-joint (ie Precision brand, part #813), and you did wail on it with the BFH rather than pressing joint out, then you surely can damage the ears of the yoke. I can imagine hammer blows peening the edges of the holes on the ears - that would make installation of new joints more difficult.
One would hope (ha!) that one would have the propshaft balanced after such treatment.
One thing though - my original porpshaft was abused by PO in that he did not replace a failing u-joint. The joint hammered itself hard and long enough to make dents on the surface of the male part of the bearing surface of the joint, AND, that hammering resulted in that particular yoke ear loosing tolerance so that a new bearing cup is looser than a press fit now.
cheers
alistair
On 2012-12-16, at 12:04 AM, neil n wrote:
> re: prop shaft vibration.
>
> I read a thread on thesamba regarding U joint replacement. There was
> mention of 'whacking' the heck out of said parts during the R&R
> process.
>
> Could shaft vibration be (in part) due to methods used to replace the
> U joints? i.e. could driving out the parts with a big (you know)
> hammer et al slightly damage the yoke enough to cause an imbalance?
>
> No disrespect to anyone intended. Just curious. Seems to me that by
> now, this wear item would have been replaced at least once on any
> given Syncro.
>
> Neil.
>
> On Sat, Dec 15, 2012 at 5:39 PM, Alistair Bell <albell@shaw.ca> wrote:
>> Today I pulled the propshaft that I made new internal bushing out of Delrin for back in June. The fit of the shaft into the bushings was still as tight as it was when I installed it.
>>
>> some pics etc
>>
>> http://shufti.wordpress.com/2012/12/15/vanagon-syncro-propshaft-bushing-6-month-update/
>>
>> alistair
>
>
>
> --
> Neil n
>
> 65 kb image Myford Ready For Assembly http://tinyurl.com/64sx4rp
>
> '88 Slate Blue Westy to be named.
>
> '81 VanaJetta 2.0 "Jaco" http://tubaneil.googlepages.com/
>
> Vanagon VAG Gas I4/VR Swap Google Group:
>
> http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines
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