thats what iam thinking,,,not sure how it worked before with the thick gasket i was using....even though their inst says you can just use a sealant instead of a gasket worries me a little
Sealant would be a metal on metal "no crush, no foreign stress riser" from an out of spec or thick gasket.
update so after getting the recomended 0.15 blower base gasket today, installed it,,,same thing it still hits when torq down.....calling dyer in the morning....iam at a loss
was told i need at least 0.08 clearence, 0.09 is better i have 0.04 did the alum grow? he said i need to have the rotors turned to the clearence i need...i ran this blower for over a year.. pic shows cant get 0.06 in there...thoughts?
the only thing i can think would be if something got in there and warped or bent the rotors a few thousand , did you try measuring in 3 or 4 different spots around the rotation . i know it sounds stupid but its all i can think of off hand .
It looks like their is a little raised spot on the rotor edge that has also contacted the case. The darker line in section you touched up. I`d say somehow someway a tiny piece of debri got in there and locked it up. Good luck, I`d love to experience a blower car someday. Dream of mine
the guy at the blower place said to turn 0.05 off of the rotors, that would be most of the raised strip alum and it would be fine...cant understand how the rotors grew lol
it would be nice...remember it ran a month ago no issues, removed just the blower not the intake....and now all of this.... being 0.04 around all rotors and it turns free not bolted up ...and to nee 0.09 to be correct , a 0.05 difference floors me...how can this be?
Are the dowel pins present between the case and bearing plates? Is the manifold warped? Lay the blower on the manifold without a base gasket, does the blower rock around, or sit nicely?
yes and its flat no rock around...i was told to do it right a shop could relocate the dowels from 5/16 to 3/8 and get the 0.05 thats needed
crazy, i live in the racing capitol of the world, but yet to find a machine shop that can take 0.05 of of my rotors...seems crazy to me....
5 thousands = .005 you could carefully achieve that with sandcloth. Or maybe your local machinist would be more comfortable boring out the case?
Before you machine (or sand) anything check the bearings. It seems entirely logical to me you have a bearing that could have some slop in it causing your problem. I would hate to see you open up the case or polish down the rotors just to end up with a boat anchor that has bad bearings.
if i did take the od off the rotor, whats the worst that can happen...would it make them out of balance or what? that 3/8 wide strip is what they call the od its about .005 thick and was told by the blower guys to have it machined off.. would not hurt it at all.
