Comp parts availability?

[russ jerome]

Im not seeing anybody who sells parts, just complete units.

Looking for the plastic check valve in the head, tore three apart in the junkyard and they "all" failed for the 7 cent valve sitting on piston, all motors and pistons work fine less the dropped plastic valve?

Gladly pay $20 a piece for the pen cap sized piece of plastic.

 

[kustomizingkid]

Huh?

I've never torn one apart... got pics?

 

[russ jerome]

I can get some up, have to be thurs in daylight, looks like a tiny golf "T", short story:

The comp piston and cylinder are like a motorcycle, they are captured by 4 bolts, with the head lifted off there is a single valve just like your motor, piston goes down and sucks air in, on the compression stroke the valve seats itself and the pressure heads toward the little tank/air distribution dingus.

The valve is only captured by a little tit on the end, looks like over time the heat lets the plastic valve get sucked into the compression area, piston binds up and motor wont turn. The motor apears to be a windsheild wiper motor so it doesnt smoke right away being the computer times out its run schedule and is fused anyway. The valve is plastic so no damage is done to the cylinder wall for the piston.

7 cent part is probably the cause of 90% of the failures, all in the ones I took apart so far.

 

[russ jerome]

No sense in putting pics up, your vendors will sell you reman compressors but not parts, this means your "reman" compressors you guys are paying for are full of old obsolete parts I guess?

 

[American Air-1]

Not hardly. I can honestly say that Mark VIII's are NOT known to be hard on intake valves. A bad intake valve "usually" means the compressor has run waaaaay more than it should have and has gotten hot & melted. This "can" happen to any of these little compressors.

 

[russ jerome]

I stand corrected, our WI climate must have something to do with all the ones I found in the local yards as all where hard,yellow and brittle. Not a component I would want to reinstall during a rebuild.

I discarded the plastic check valve and installed spring loaded adjustable VAC/PRES steel check valve from Graingers on the inlet side today, time will tell but its 600psi rated and working great so far.

 

[driller]

I discarded the plastic check valve and installed spring loaded adjustable VAC/PRES steel check valve from Graingers on the inlet side today, time will tell but its 600psi rated and working great so far.

Sounds like a good move. :Beer

 

[ford nut]

Russ you do have too many hobbies!