I have a high output 383 that pulls all the way to 6200rpm, that is when the fan belt doesn't pop off !!!
The thing is, when it threw the first time, I checked it over and noticed that the Edlebrock alloy water pump was out of line with the crank pulley - as was the alternator. Some water pump spacers sorted that out and brought everything back into line. But it still throws the belt at high revs. Its a new 10mm belt from Halfords that sits deep in the groove and all the pulleys seem to run true.
I've attached a photo of the mounting. Has anyone had trouble with this sort flexing at high revs ?
The alternator has only the fixings that you see - i.e. no stay to manifold on top like many.
Mark
The thing is, when it threw the first time, I checked it over and noticed that the Edlebrock alloy water pump was out of line with the crank pulley - as was the alternator. Some water pump spacers sorted that out and brought everything back into line. But it still throws the belt at high revs. Its a new 10mm belt from Halfords that sits deep in the groove and all the pulleys seem to run true.
I've attached a photo of the mounting. Has anyone had trouble with this sort flexing at high revs ?
The alternator has only the fixings that you see - i.e. no stay to manifold on top like many.
Mark