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Re: [T3] another question - engine assembly

On 7 Feb 2005 at 22:01, David Sanderson wrote:

> Sorry for all the questions tieing bandwidth but I am trying to make 
> some progress on this car. I am about to bolt the engine together. 
> All is prepared and then I notice that there is no recessed area for 
> the O ring on the engine through bolts. It seems that in some of 
> these older cases they did not use this O ring but rather had a nut 
> with a recessed area for an o-ring I guess. 

No problem with the bandwidth. Your questions are all reasonable and concise. 
This is why we're all here.  

Early engines used no O-rings here at all. I believe the O-rings were 
introduced around '66, but don't take my word for this. I know they were there 
by '68. The instructions for rebuilding early engines were to countersink the 
holes in the right case halves (the ones without the studs.) If these 
countersinks were made just a bit bigger than the double countersinks in the 
late cases then the same O-rings would work there. 

You have to make sure that there is sufficient room in the countersink for the 
O-ring to be completely pressed in there, otherwise this will hold the case 
halves apart, which would lead to disaster.

OTOH, I'm sure that LOTs of such engines have also been rebuilt just as they 
originally came, with NO O-rings.

Jim Adney
Madison, WI 53711-3054

List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org

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