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Workshop => Engine and Bottom End => Topic started by: d-rock on May 01, 2014, 07:35:39 PM

Title: sphynx questions.
Post by: d-rock on May 01, 2014, 07:35:39 PM

On a CPI sphinx cylinder.

1- what do you use to seal the exhaust flange to the cylinder?
2- there are 2 holes at the base that go into the water jacket. They should take a pipe plug but what do you seal them with? The threads are poor, I don't think Teflon tape will seal it. I was thinking of epoxying them in.

Thanks. Derek.

Title: sphynx questions.
Post by: kb250r on May 01, 2014, 07:47:52 PM

I used hi temp silicone for my exhaust flange on my Puma and I'm sure the same would work for the water jacket plugs as well

Title: sphynx questions.
Post by: GO OVRIT on May 01, 2014, 07:54:20 PM

If its that bad, can you clean them up with a tap?

Title: sphynx questions.
Post by: d-rock on May 01, 2014, 08:20:19 PM

Plugs thread in fine but on 1 side of the hole there are no threads. I think the holes are there from casting and were to big for the tap.

Title: sphynx questions.
Post by: kb250r on May 01, 2014, 11:48:11 PM

Is that a brand new cylinder?Did you recieve it like that...?

Title: sphynx questions.
Post by: Tbone07 on May 02, 2014, 10:24:07 AM

Got some pics?

Title: sphynx questions.
Post by: rsss396 on May 02, 2014, 10:35:08 AM

after millennium acid dips and sand blasts them the threads sometimes look a little ragged but it should still seal fine unless someone has jacked them up. you can just use pipe sealant in liquid form, teflon tape or even a good silicone on the threads and you will be fine

Title: sphynx questions.
Post by: Pumashine on May 02, 2014, 11:14:57 AM

Quote from: d-rock;32864

I was thinking of epoxying them in.

Remember they do have to come back out next time its plated. I like to use High Tack    http://www.google.com/aclk?sa=l&ai=Cf7M6PrZjU7y2NpS_-QOS5YGADK2W480CjZ3b43TNmYP6SwgJEAMg3s3PHigPUJjS8b8FYMm2-IvMpIgZoAGXydf6A8gBB6oEJ0_Q4w_bObwFAnDsVlSE1GH_o6LslldTWblQnOIhGOyk6b-6QyJ46sAFBaAGJoAH0baoBZAHA-ASlbrCx8qS3MKyAQ&sig=AOD64_1-9_r8d-L4lQZGeVbxL4jwUlZgCw&adurl=http://www.rkdms.com/redirect%3Fc%3D1108676683%26en%3D27%26cl%3D811%26u%3Dhttp%253A%252F%252Fwww.motorcycle-superstore.com%252F22862%252Fi%252Fpermatex-high-tack-gasket-sealant%253Fdevice%253Dc%2526matchtype%253D%2526network%253Dg&ctype=5&rct=j&q=&ei=PrZjU_SIM4P9oASEsIG4Ag&ved=0CKIBEKcrMAM&cad=rja

Title: sphynx questions.
Post by: d-rock on May 02, 2014, 12:03:31 PM

Quote from: rsss396;32907

after millennium acid dips and sand blasts them the threads sometimes look a little ragged but it should still seal fine unless someone has jacked them up. you can just use pipe sealant in liquid form, teflon tape or even a good silicone on the threads and you will be fine

i think your right, they look sand blasted, ill try sealing them up and pressure test before i assemble it .
 I have high tack and liquid teflon.
Thanks for all the input.
Derek.