177 blower
 

what would be a fair price for a 177blower with about 200hrs on it
im looking pm me what you have and price

I dont know what would be a fair price for a 177 blower I think around 1800$ with the intake would be a good price. I have one from a merc 525sc gen VI 1998 that I can sold with the intake, now i am looking to upgrade to a bigger one on my 525sc but i need to find one before sold them.

I sold my whole set up for $1500

a setup with 200hrs what would it cost to rebuild or would it not be needed to be done
what to look for?

It depends on how often the gear lube was changed. My 177 had 475hrs+ on it and was never apart. I changed the lube about every 30hrs.

If there is fuel in the lube front or back the seals are gone. If you spin it and the rotors touch or there is roughness the bearings/gears are suspect. You should be able to look at the rotors and see no wear anywhere. Ive changed bearings/ seals in mine and retimed the rotors, its quite simple and cheap. The only thing I couldn't find was shims for under the gears to adjust rotor timing, I had to make them. Also it would be best to get one with a keyed input shaft so you can swap pulleys. Merc had a bastard spline design that limited selection and now availability of pulley size by a lot. I changed out my inputs shafts but it was not cheap.

Blue Thunder,

How to set the rotor timing right in that blower what is the reference?

There is a rotor to rotor clearance spec and you check it using feeler gages. You make adjustments by shimming under the angle cut drive gears on the front of the blower. Because they are angle cut shimming in-out changes the rotor relationship/clearance. I have the spec.ed clearances for the 177 if anyone needs them.

I am interested to have the clearance spec to see if mine is ok.
Please send to: [email protected]
or by private message.

Thanks

Here they are in case anyone else needs them for a weiand supercharger.

Rotor End Front - .008-.014"
Rotor End Rear - .010 -.025"
Rotor to Case Top - .009 - .015"
Rotor to Case Bottom - .007-.012"
Rotor to Rotor - .008-.012"

BT :drink: