Dan Beisel
Petty Officer 3rd Class
- Joined
- Sep 3, 2003
- Messages
- 76
1970 Johnson 115hp<br />---------------------------------------<br />Had the heads off. Lots of carbon build-up. My "Seloc" manual showed using a wire brush on the end of drill to clean off the carbon, so I used a fine "cup" style brush after spraying some Deep Creep on the ports and piston tops. Got the carbon off great but I notice the brush was starting to remove some metal material so I stopped. Questions: how much damage could I have done? Will a compression check let me know if all is well (heads are back on but I'm waiting on a water pump).<br /><br />thanks in advance,<br />Dan