Crank pulley for divers helmet on 8 BA?

[Ziggster]

Sorry, but I couldn't get hold of the machinist today. No answering machine either...

[gavinnz]

Well I lucked out today, I got a double pulley. It was rough but not broken. A few hours work with the gas set and the lathe and it was up to spec again.

[gavinnz]

Another angle...

[gavinnz]

After fixing....

[Ziggster]

Gthat is some amazing work on that pulley. Looked like s rap to me. Good to know the double row pulley clears the dizzy, but getting a belt on to drive your alternator could be problem? Why are you not mounting where the generator normally sits?

[gavinnz]

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Lucky the pulley was cast steel and not cast iron.
No room under the boat deck for the generator up high. So I am running a 12v marine alternator partly hidden under the engine to right as looking from the front. Raw water pump on the left.

[gavinnz]

Yes I will have to remove the dizzy to fit the outer belt, but that's easy as its only three bolts and it does not disturb the timing.

[rotorwrench]

The best rule of thumb is to use either all 8BA truck stuff on the front or use all earlier stuff. If you go with earlier stuff you can use a crab or a helmet type distributor. The cam should be changed to 59A type with 59 type gears if nothing else just to make like easier and to allow the distributor to work properly. The 37 thru 48 type pumps will fit and any of the long snout crank pulleys can be made to fit pretty easily. A person can use a generator fan with a single belt that way. Plus you can use 59 type heads with only a minor mod for passages.

This is the best way to make an 8BA block more like a 59 or earlier block. They fit in AV8 cars better that way. Especially if you use the the 49 thru 51 Mercury oil pan and half bell but a truck set up may work also. I like the crab better but that's just personal preference.

[Brian]

You must run 37-48 truck pumps with that 8BA block as they have sealed bearings