Have searched, still searching, what I need
- Thread starter Howardgf
- Start date
Stock is 14.8x27x3.8 mm under the magneto, 14.8x27x7.5 under clutch. One of my engines came with seals made by HYC.
I have also used 15x27x7 mm seals on both sides. These seals were much easier to find than the stock sized ones. Last time I purchased them from Harwal, and the seals were made in Taiwan.
I have also used 15x27x7 mm seals on both sides. These seals were much easier to find than the stock sized ones. Last time I purchased them from Harwal, and the seals were made in Taiwan.
They were a very tight fit requiring much more force to install than the stock ones. Chamfer and deburr the shaft before pressing them in.
The seals held up fine, however I have still had them get blown out of the bore just like the stock ones, but on a stock engine I don't think that would happen. The inner lip was fine on inspection after being blown out.
The tight fit probably was because I used double lipped oil seals while the stock was single lipped.
The seals held up fine, however I have still had them get blown out of the bore just like the stock ones, but on a stock engine I don't think that would happen. The inner lip was fine on inspection after being blown out.
The tight fit probably was because I used double lipped oil seals while the stock was single lipped.
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Howard,
Just in case you've never installed shaft seals be sure to lubricate the shaft and the seal before installing. You can use whatever oil you mix with your fuel for this. Just don't install them dry. Also inspect the shaft for any gouge, scratch or roughness where it contacts the seal.
If I'm telling you something you already know, sorry, I'm not talking down to you but maybe another member will benefit from the advice.
Tom
Just in case you've never installed shaft seals be sure to lubricate the shaft and the seal before installing. You can use whatever oil you mix with your fuel for this. Just don't install them dry. Also inspect the shaft for any gouge, scratch or roughness where it contacts the seal.
If I'm telling you something you already know, sorry, I'm not talking down to you but maybe another member will benefit from the advice.
Tom
