The problem is not the kit, it is the material that the seal is made of.
The MGB seal "orange" viton is the correct material. THe Moss seal is
"Nitrile" rubber. This is the wrong stuff. Volvo uses the same "orange"
seal in their engines, and they last for 200,000 miles or more.
Cheers:
Skip Kelsey..........................
At 08:13 AM 4/6/00 -0700, Bill Traill wrote:
>Hello all,
>I have been following this rear seal discussion with interest.
>
>A few drops of oil, or a little puddle, on the floor may not seem like
>much of a problem (except to my pride) but over time it can make
>an oily mess along the chassis.
>
>Concerning the large diameter seal issue: I would like to point out
>that the MG B engine uses such a seal running on the diameter of
>the flywheel flange. It must be 4" diameter and B's don't seem to
>have a wear problem. I have 180,000 miles on the current rear seal!!!
>
>I will install the "small block chevy" conversion in my XPAG
>overhaul.
>
>Cheers,
>
>Bill Traill
>Santa Clara, Calif.
>
>> Andy,
>>
>> What you are saying is that no seal exists that can withstand the
>> friction temperatures generated by the large diameter and therefore
>> fast moving circumpherence of the flywheel boss. Probably there is not
>> enough oil in the vicinity at those rpms either. My one has settled in
>> to a steady rate of leak and I guess that it has just worn enough to
>> reduce the friction and therefore reduce the temperature.
>>
>> What you are also saying is that if I just tootle along in town, the
>> Viton one will probably hold out. Little chance of this.
>>
>> The best interim solution will probably be to replace the original
>> stuff for now.
>>
>> Any other ideas?
>>
>> Viv
>>
>>
>>
>>
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