Skyliner70cc
Active Member
- Local time
- 3:11 PM
- Joined
- Nov 17, 2007
- Messages
- 1,338
I've had two slant heads (aftermarket, not original engine) not seal properly to the engine. Closer inspection revealed that the heads were slightly warped.
I then decided to go to a local NAPA machine shop and see what they could do for me. The shop manager said he couldn't help me and suggested I sand the heads on some glass to get them square again. I recalled that previous posters mentioned leveling the head with emery paper on glass but I have no glass in my garage.
I then went down to my local glass store (City glass) and asked for some scrap glass. A very kind man gave me a nice sheet of glass for free (it wasn't scrap either).
I then got a multipack of emery paper from harbor freight. I tacked the emery paper to the glass using a spray adhesive and then sanded the block starting with 60 grit paper and finishing with 220 grit paper.
Total time to sand was about 15 minutes. After smoothing out the slant head, I sprayed some copper gasket spray on the head and reinstalled it onto the engine.
I'm happy to say everything works as it should and the only leak I had was a blowout on my rear tire on my maiden ride with the fixed slant head. I will repeat this one of my other bikes later this week.
I'm glad I got off my butt and got some glass and emery paper. Thanks to all who gave this tip before, it works!
PS: I did use a new head gasket to ensure a good seal.
I then decided to go to a local NAPA machine shop and see what they could do for me. The shop manager said he couldn't help me and suggested I sand the heads on some glass to get them square again. I recalled that previous posters mentioned leveling the head with emery paper on glass but I have no glass in my garage.
I then went down to my local glass store (City glass) and asked for some scrap glass. A very kind man gave me a nice sheet of glass for free (it wasn't scrap either).
I then got a multipack of emery paper from harbor freight. I tacked the emery paper to the glass using a spray adhesive and then sanded the block starting with 60 grit paper and finishing with 220 grit paper.
Total time to sand was about 15 minutes. After smoothing out the slant head, I sprayed some copper gasket spray on the head and reinstalled it onto the engine.
I'm happy to say everything works as it should and the only leak I had was a blowout on my rear tire on my maiden ride with the fixed slant head. I will repeat this one of my other bikes later this week.
I'm glad I got off my butt and got some glass and emery paper. Thanks to all who gave this tip before, it works!
PS: I did use a new head gasket to ensure a good seal.
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