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Old 05-28-2018, 10:09 AM   #33
Corley
Senior Member
 
Join Date: Aug 2011
Location: Battle Ground WA
Posts: 293
Default Re: Adding a 4 blade instead of my 2 blade fan.

Quote:
Originally Posted by old31 View Post
Corley, I will add an additional 4 degrees and see how it sounds.

WARNING:


Since it seems you have adjusted/limited your FSIs total advance to 21 degrees (I think from what you have written), and now you are going to try advancing it a bit, please be careful. The reason for setting initial timing at zero degrees is that if advanced beyond that, hand cranking can result in broken arms, and starters can end up with bent shafts. If you don't plan to hand crank it EVER, then you can get away with 4-5 degrees initial advance, the starter can handle that, but no more than that. If you will ever be cranking it, then zero is it, and you need to adjust your stop in the FSI centrifugal advance so you can get zero initial, and about 25 degrees at 2k rpms. Make no mistake, FSI dizzies can be a balancing act. This is why I like a vacuum advance.
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