Has anyone messed with a Seiko-Seiki A/C clutch???

[gale]

Can the Seiko-Seiki clutch be adjusted to set the free wheel gap? I found a replacement clutch at www.impexfap.com but rather pricey -- $277. If it does need replacing, is it a fairly simple proceedure with the puller tool? Mine is making an aweful grinding noise when it engages & will need attention soon. Other than that, the A/C system works very well & I hate to tamper with an otherwise good running R-12 system.

Thanks,

gale
92 735im

[Bill R.]

.5 to .8 mm.... If its making noise the bearing may be going or the clutch contact surface might be galled up...If you have access to (i suspect you do) a blanchard or a magnetic chuck surface grinder you can clean up the galled contact surface on at least one side of the clutch... the outer plate is a little harder to grind though.. and then set your gap with shims.

Can the Seiko-Seiki clutch be adjusted to set the free wheel gap? I found a replacement clutch at www.impexfap.com but rather pricey -- $277. If it does need replacing, is it a fairly simple proceedure with the puller tool? Mine is making an aweful grinding noise when it engages & will need attention soon. Other than that, the A/C system works very well & I hate to tamper with an otherwise good running R-12 system.

Thanks,

gale
92 735im

[gale]

Thanks Bill, I'll take a stab at it. I should be able to measure & match the thread pitch & turn a puller adapter on the lathe. I have numerous resources in town that can grind the surface.

Thanks for the .5 - .8 mm spec, that was what I was mostly in nead of. I see now that Bentley gives the gap but in typical Bentley style, he offers nothing more on how to achieve it. I'll bumble along until I make or break it.

Thanks,

Don