Valves?

**erik erikson** · 10-08-2007 05:05 PM

Originally Posted by Dean C.

Hi i was just wondering if anybody can tell me the symptoms for having the valves in a chevy SB to tight?

Welcome,it will pop out the intake and exhaust and will have a rough idle and low vaccum.

**Dean C.** · 10-08-2007 05:09 PM

I have a slighly rough idel, vacuum at 20" 14 degrees advanced, but very hard for the starter to turn over expecialy after it runs for 5-10 min.

**erik erikson** · 10-08-2007 05:12 PM

Originally Posted by Dean C.

I have a slighly rough idel, vacuum at 20" 14 degrees advanced, but very hard for the starter to turn over expecialy after it runs for 5-10 min.

Your starter may just be getting heat soaked.
With 14 degree's it will be hard for a stock starter to turn it over.

**Dean C.** · 10-08-2007 05:14 PM

I'm sorry i should have said i'm using a gear reduction starter, good to 11.1 com, and im only running 9.5-1

**erik erikson** · 10-08-2007 05:16 PM

Originally Posted by Dean C.

I'm sorry i should have said i'm using a gear reduction starter, good to 11.1 com, and im only running 9.5-1

With that comp. ratio and a gear reduction starter you should have no problem
Check your wires,how much cold cranking power does your battery have.

**Dean C.** · 10-08-2007 06:12 PM

750 cca on batt, due to the rough idel, and having to advance to 14 initial timing, i was just thinking the valves may be over tightened.

Thread: Valves?

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