ScottinAZ
Master Chief Petty Officer
- Joined
- Jun 25, 2009
- Messages
- 831
ok, finally got the '95 Four Winns (4.3 chevy with an SX in drag hanging on the transom) off the dock yesterday, only to find out it WILL NOT rev past about 1500 rpm in gear. In neutral it revs out fine..... so something is amiss in the engine department. (Prop is the standard 14.5x21 pitch it came with, and is specced for). Pulled plugs this morning, and they are still very new looking, so no real help there, (not fuel washed or black in any way, stark white from being new more than anything else. all the runtime this engine has on these plugs is about 20 minutes on the hose, and about an hour idling around when it wouldnt rev out) Did a compression test on the engine and have 155-160 on all holes, so I dont believe it to be an "internal engine" issue causing the problem.
this leads me to believe that it is something with the carburetor (gone through, but with chinesium kit) or the distributor. When I redid the heads earlier this year, I did check the timing with the shunt, and its set to spec, but this performance leads me to believe the module may not be advancing.
What are the odds of the module being crap, and not advancing? Its the Delco small diameter HEI with vertical posts on the cap. Or is it likely something in the carburetor causing issues.... its a flat out DOG under load, and I really want it working right this year if possible.
this leads me to believe that it is something with the carburetor (gone through, but with chinesium kit) or the distributor. When I redid the heads earlier this year, I did check the timing with the shunt, and its set to spec, but this performance leads me to believe the module may not be advancing.
What are the odds of the module being crap, and not advancing? Its the Delco small diameter HEI with vertical posts on the cap. Or is it likely something in the carburetor causing issues.... its a flat out DOG under load, and I really want it working right this year if possible.