Barney,
Believe NAPA does sell an oil filter for the MGA/B with 3 oil seals.
It's a NAPA silver #1516 that fits the Spin-off type.
Dave Houser
Barney Gaylord wrote:
>At 04:36 PM 7/8/06, Frank Krajewski wrote:
>
>
>>Help! I spent the better part of two hours attempting to replace the
>>gasket that goes between the canister and the filter head in my 1964
>>MGB. It is a 2 piece filter. The rubber gasket (ring shaped but not
>>an O ring) came with the the Crossland filter and there is no way
>>the new gasket fits in the groove. I even checked another new filter
>>I have and that gasket is the same size. I destroyed the old gasket
>>when I removed it. The reason I wanted to change the gasket is due
>>to the huge oil leak right after my oil change. Is there a special
>>tool or old mechanic's trick for getting that gasket to fit in the
>>groove? In desperation I have ordered a spin on filter adaptor that
>>is available for the early B but I did want to keep everything original.
>>
>>
>
>See here: http://mgaguru.com/mgtech/engine/of100.htm
>
>The MGB two piece cannisters are similar to my illistrations of Late
>Tecalemit and Purolator filters. These use two O-rings of the same size.
>
>The illustration of the early Tecalemit filter (for early MGA only)
>shows the one piece canister with the head asembly which fits inside
>of the cannister. This setup uses two O-rings with different
>diameter and cross section. The smaller diameter ring fits around
>the head inside the cannister.
>
>Replacement filters are commonly packaged with two O-rings, one of
>each type. The same filter is sold under same part number for both
>MGA and MGB. This is correct for the early MGA only. For later cars
>you throw away the smaller diameter O-ring and install the larger
>diameter one between the canister and the adapter head.
>
>If you want to change both O-rings you have to buy an additional
>larger diameter O-ring as a separate part. In many cases people
>change the lower O-ring only and leave the upper one untouched. Of
>course this can lead to leakage at the top joint as the upper seal ages.
>
>I wouldn't expect anyone to package and stock the filters under two
>different part numbers for the different o-rings, but it would be
>nice if the package contained three O-rings to encourage people to
>replace the top one regularly.on the MGB and later production MGA
>
>Barney Gaylord
>1958 MGA with an attitude
>http://MGAguru.com
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