- Joined
- 16 March 2007
- Messages
- 98
Looking for a liitle advice on why there is a black greasy residue in the throttle body on the intake manifold side of the throttle plate. let me add the following info: Crankcase gasses are vented to the atmosphere. The engine was built for turbo but is running N/A at the moment. Heads are ported with 1mm oversize valves. Block is Darton 95mm with JE 9:1 pistons. Ever since the rebuild (15,000 miles ago) there has been an oil consumption issue of 1qt. per 500 miles. The compression checks out fine cylinder to cylinder. Since the oil consumpsion issue was ongoing, I replaced all the valve seals, but nothing changed as far as residue or oil consumption. I hate to tear down and hone and re-ring and I'm not sure if the residue & the oil consumption are related.
Any thoughts or advice would be appreciated.
Thanks,
Todd
Any thoughts or advice would be appreciated.
Thanks,
Todd