SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: sandaddict on September 19, 2015, 03:41:09 PM

Title: BBC Timing....
Post by: sandaddict on September 19, 2015, 03:41:09 PM

Ok I know it's been discussed somewhere before but I'm askin anyway...  Stock Indmar 454, no advance at all in distributor mechanical vacuum or otherwise.  What should my total timing with no advance?

Title: Re: BBC Timing....
Post by: aquaholic72 on September 19, 2015, 03:46:55 PM

I run 38 total

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Title: Re: BBC Timing....
Post by: GT Jets on September 19, 2015, 03:47:55 PM

Quote from: sandaddict on September 19, 2015, 03:41:09 PM

Ok I know it's been discussed somewhere before but I'm askin anyway...  Stock Indmar 454, no advance at all in distributor mechanical vacuum or otherwise.  What should my total timing with no advance?

A stock Indmar has about 22° timing built into the distributor.

Curious why yours has none.

They normally ran about 34° degrees total.

GT

Title: Re: BBC Timing....
Post by: sandaddict on September 19, 2015, 03:58:21 PM

Heres the distributor thats in it.  So if i set it at 34deg i would be good? Seems to be set at 18deg on my dial back....

Title: Re: BBC Timing....
Post by: mash on it on September 19, 2015, 04:20:05 PM

I have that same dizzy.
Mine has mechanical advance.
Does the rotor turn by hand about 1/8th of a turn? Mine does.
I set mine about 14* @ idle, then its ~ 34* at 3000+ (14* initial, +~20*mechanical)
No dial back timing light here, i just marked the balancer when I degree'd the cam @ 30* and 35* (saw blade & white paint, like oem)
I have also set it with the tach while underway, too

Good luck
Dan'l

Title: Re: BBC Timing....
Post by: GT Jets on September 19, 2015, 04:22:54 PM

Your mechanical mechanism is stuck.

Jmo

Title: Re: BBC Timing....
Post by: sandaddict on September 19, 2015, 04:28:50 PM

Got it.  Thanks guys!