My 454 Rebuild

[Piratehunter]

Did the replaced dizzy gear have any bad wear pattern?

 

[Spareparts]

Yes, somewhere in this thread there is a picture of it. It was shot and the teeth were worn almost 1/2 way.

 

[Piratehunter]

The reason I ask is that you do want a little free play on the dizzy shaft so to prevent the dizzy shaft from bottoming out on the oil pump shaft. That will lead to premature wear, knife edging of the gear, and could lead to some timing issues. Not saying this is causing the problem you’re seeing, but easy to check and correct with nylon shims. See this article: https://www.chevyhardcore.com/tech-...t-distributor-gear-its-all-about-the-details/.

 

[Spareparts]

Oh, that is what you mean. It does have a little up and down. I can't say exactly how much but there is enough.

 

[Spareparts]

MAF gave a code this morning finally as its unplugged.
O2 sensors have 12v heat to them.

 

[Spareparts]

Does this diagnostic report have any useful info?.
I see a lot of incomplete tests.
was warm and engine not running key on

 

[Mangonesailor]

It shows your EVAP system hasn't been able to be tested. Is it fully operational? It will sometimes take a long time for this to be tested by the ECU and it determine if the system is leaking or if it is even functioning.

Everything is plugged up correctly, right? Any leaks at all that you suspect?

 

[Spareparts]

Thanks
After research I found it can take several drive cycles to test.
No leaks I can find anyplace.

 

[Spareparts]

About the only thing I have not done is change the distributor.
I have a spare I think I'll try this weekend.

 

[Mangonesailor]

Thanks
After research I found it can take several drive cycles to test.
No leaks I can find anyplace.

During that did you read somewhere about if the fuel tank needs to be filled at least once and/or how low it needs to be driven until it should be refilled?

I know there are other makes that want to see that before they start initiating a self test