| Author |
Message |
joe shelton (Littlewind) (67.241.230.54)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, September 03, 2002 - 4:27 am: | |
My last hi-way run my compressor was cooking @ 450 degreez F! After allot of checks and inspections (have list if any onez intrested), I found that the compressor is not flowing coolant (not a drop). Tried to free-up coolant passage using 120 psi air pressure in outlet and inlet ports with no sucsess.
Becuase there are muntiple inlet and outlet ports (3 on the head & 4 on the cylender block), I plan on installing a coolant line connecting the two. So the coolant will flow from the engine to the compressor head, out the head thru the new line & into the cylender block and then out of the cylender block back to the engine.I thought twice before deciding to do this, thinking that if the obstruction comes free it may block an engine coolant passage but I think if 120 psi didn't budge it, its there to stay. I also suspect it is a build up of rust.
So what do you think?
Thanks, Joe |
Earl-8-Ky (209.250.57.21)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, September 03, 2002 - 5:42 am: | |
My advice is to find the block and clear it up. Us one of the small flexable plumbing snakes. then flush it with plenty of water. Blow the water out and fill with a good drain cleaner and let it set for awhile. Then flush again. It is worth a try. |
joe shelton (Littlewind) (67.241.228.67)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, September 03, 2002 - 7:09 am: | |
I talked to bendix support and they siad "pull the head"
I guess thats what i'll do tho i don't want to.
Joe |
Darryl (24.241.78.169)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, September 03, 2002 - 7:44 pm: | |
This is an interesting side note to this topic. Last year I was talking to a mechanic at a small local bus company that had bought some of the Issazars (this isn't spelled right, but I don't know how they spell it). He said that the air compressors had been replaced on all their coaches under factory warranty. Turns out that they have a computer controlled air bag suspension and they weren't working right. THey were constantly dumping air and then refilling. Burned the compressors out in about 20,000 miles. |
Steven Gibbs (12.148.43.6)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, September 04, 2002 - 4:01 am: | |
Does the compressor really care if it is loaded or unloaded? |
DaveD (216.18.113.69)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, September 04, 2002 - 4:25 am: | |
It's going to generate a lot less heat when unloaded. Constant operation under load or continual cycling is bound to increase wear on bearings and other components.
DaveD |
joe shelton (Littlewind) (67.241.228.172)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, September 04, 2002 - 5:12 am: | |
I have concluded that the compressor does not care about anything. But it will get hot enuough to fry an egg if styz loaded & I care about that. The heat generated in the eng compartment will also harden hose lines and wire insolation AND be sucked into the engine air intake which, I think, will contribute to lower performance.
I ordered a compressor head kit ($40) & unloader kit ($11).
Joe |