Champion Commandair Compressor?

[Burgerkong]

Probably just had some felt filter in there originally, or maybe that filter foam that eventually deteriorated (and got sucked in)... *shrug* I'm sure you can McGuyver something.

On the manual it says that there is a 'Filter Adapter', but CH can't seem to find the right one? On later pump revisions, they list a 'Solberg Filter Adapter' kit (I have the 1989 manual, CH sent over a 1990 manual which lists the change):

Oh yeah, tore down the pump today, everything looks good! Oil is nice and fresh, looks taken care of, valves work great as well. Head is pristine!

Unfortunately, they told me that the rings for the 3" pistons are unavailable, will have to find another source or reuse the old ones.

 

[EOC_Jason]

Damn... looks like one of the screws came out of the reed valves and nobody noticed for a while... I remember when I was cleaning my pump recently, when I put them back in I made sure to use a little loctite just to be safe...

 

[Burgerkong]

You missed my sarcasm, but that's all right.

Yep, definitely loctiting them after I get new screws for it. The walls are unmarked aside from normal ring scratches. There's also quote a bit of lateral movements on the rods, I can't find any bearings on the rods, are they normally there?

 

[Burgerkong]

Sounds like a couple loose wristpins as well.

 

[Jim Johnstone]

You missed my sarcasm, but that's all right.

Yep, definitely loctiting them after I get new screws for it. The walls are unmarked aside from normal ring scratches. There's also quote a bit of lateral movements on the rods, I can't find any bearings on the rods, are they normally there?

My CH pump that I am rebuiding doesnt have any bearing either. I am planning to bore the rod big ends out and make custom Ampco bearings for it.

Sent from my SGH-I727R using Tapatalk 2

 

[Burgerkong]

My CH pump that I am rebuiding doesnt have any bearing either. I am planning to bore the rod big ends out and make custom Ampco bearings for it.

Sent from my SGH-I727R using Tapatalk 2

Probably better than having to replace the entire rod everytime it wears down too much.

 

[Burgerkong]

Found a ring kit for $17. http://www.compressorpartsstore.com/product-p/rk 5008.htm

 

[Burgerkong]

Got the flywheel off and inspected the main Torrington needle bearings which were still decent, but will be getting pressed out and replaced just because. That flywheel was HARD to get off, especially when I didn't have a set of working pullers. Ended up finding a socket and beating it out. Yeah, I don't have a press either.

Oh, took the pistons out to inspect the rings for wear as well, looks decent, you can also see the damage to the other piston better. It's restricted only to the top face, thanks goodness for that.

 

[Grounded Ken]

You do know these units were not made to last forever!

 

[Burgerkong]

You do know these units were not made to last forever!

Oh definitely, that's why I bought another pump! I'm going to run the CH until it really dies. It was really just a trial run for rebuilding the Champion since I haven't rebuilt air compressors before. I do know I'd need to get a set of crowsfeet wrenches as I cannot access the rod bolts with sockets in order to torque them up to spec (sort of, don't want to have to buy another torque wrench just for areas I can't access).

 

[lugnut5]

Trying to rebuild a Devilbiss 230 which is also a 3" piston. Do any of you know if those rings will fit my machine. Are there any sources for parts for the discontinued 230.
Richard

 

[Burgerkong]

Trying to rebuild a Devilbiss 230 which is also a 3" piston. Do any of you know if those rings will fit my machine. Are there any sources for parts for the discontinued 230.
Richard

No idea, but 3" rings should be fairly standard. I can go and measure my rings once I get them out if you want.

Stripped the Champion today:

Gotta get my set of pullers from a friend, beating on the crankshaft with a rod and a ball peen *****.

Found out someone has rebuilt the CH pump before, the gaskets are reversed! Also, could use a light hone IMO.

What a mess! Gotta get my work benches done as well as some storage cabinets put up! The barbecue and the 4x4's will be out of here soon, can't wait.

 

[lugnut5]

Thanks Brendan. I think I'll just order a set as they are not real expensive. My workbench is worse than yours. What is the saying "a clean desk is the sign of a sick mind".

Richard

 

[Grounded Ken]

lugnut5, go to www.centrair.com, looks like they have info and parts.

 

[Burgerkong]

lugnut5, go to www.centrair.com, looks like they have info and parts.

First place I checked. They have the listing for the pump but the link is dead. I tried 330 as well, also dead.

 

[Grounded Ken]

Did you try calling? I don't see many Devillbiss down here, when I did have one come thru they were very helpful.

 

[Burgerkong]

Here's what I'm planning to do in terms of lines and such:

Intake filter -> Pump -> Transmission cooler w/ fan -> Coalescing filter/automatic drain with bowl or manual dropleg -> Tank (manual drain on the bottom) -> Filter/regulator (5 micron) -> Coalescing filter/automatic drain with bowl or manual dropleg -> Piping -> Tee -> Filter/regulator (0.3 micron) for paint guns and such

Any problems with this?

 

[lugnut5]

Thanks guys. I will try calling them on Monday. Something tells me I may be beating a dead horse. I have a line on a 445 pump and I believe they still have parts for those.

Richard

 

[Burgerkong]

Thought I needed a beefier puller, turns out I just needed a bigger hammer. My neighbours thought I shot my foot off when the flywheel loosened up.

 

[jonathan75]

Here's a video:

That sounds so much better then my sound video. I had some real crazy sounds. I don't hear anything odd in yours.

 

[jonathan75]

Oh, took the pistons out to inspect the rings for wear as well, looks decent, you can also see the damage to the other piston better. It's restricted only to the top face, thanks goodness for that.

Did you find the bolt it was chewing on? It looks like it had some fun with something for a while. That had to of made some noise.

 

[Burgerkong]

Did you find the bolt it was chewing on? It looks like it had some fun with something for a while. That had to of made some noise.

Negative. I did find out it has been torn down before since the gaskets were reversed. Perhaps the PO did it himself after the bolt fell off. I wouldn't be able to stand the noise for sure.

 

[jonathan75]

Negative. I did find out it has been torn down before since the gaskets were reversed. Perhaps the PO did it himself after the bolt fell off. I wouldn't be able to stand the noise for sure.

Tell me more about the reversed gaskets. Do you mean it was flipped on the wrong side? Both sides of my gaskets look the same.

 

[Burgerkong]

Nono, the head gasket was placed between the crankcase and the cylinders, whereas the cylinder gasket was placed between the head and the cylinder, not the other way round.

 

[Burgerkong]

A pic of my (small) workspace:

It's never good when rings don't want to come off willingly....

Looks like the bolt bouncing around in the cylinder caused the top of the piston to press down on the first ring effectively jamming it there. Will have to get it back to the proper tolerances )this is the CH pump).

Organization is key!

Brendan

 

[jonathan75]

Did you note the position of the piston in the cylinder? My compressor they said to do this but I didn't mark it well enough and when the machine shop cleaned my parts I lost where it should be facing. Not sure if it maters much with new rings but I did want to follow instructions.

 

[Burgerkong]

Did you note the position of the piston in the cylinder? My compressor they said to do this but I didn't mark it well enough and when the machine shop cleaned my parts I lost where it should be facing. Not sure if it maters much with new rings but I did want to follow instructions.

My manual doesn't say to do this, but that's why I took lots of pictures haha.

 

[jonathan75]

My manual doesn't say to do this, but that's why I took lots of pictures haha.

I tired to look back in my pictures for some identifying marks on the pistons but I couldn't find anything. All the identifying marks were dried oil and varnish which were gone when they cleaned it. I should of scribed it on the top.

 

[Burgerkong]

I tired to look back in my pictures for some identifying marks on the pistons but I couldn't find anything. All the identifying marks were dried oil and varnish which were gone when they cleaned it. I should of scribed it on the top.

I punched my marks on the inside of the pistons and scribed some arrows as well. The CH pistons are much easier to identify, I have no shortage of identifying marks LOL.

 

[Burgerkong]

I think I'll get a shop to chuck up the piston tight ring land and get it back to spec. Wondering if they should reface the piston as well, pretty sure it's a lost cause and will probably be more bad than good.

EDIT: Looks like redoing ring lands on your own is pretty simple, I'll give that a try. It's not like this is a multi-million dollar IC engine, it only pumps air. I noticed that on the Champion there are a couple shims (really thin rings really) where the top and second rings are. What's the purpose of these?

 

[jonathan75]

I think I'll get a shop to chuck up the piston tight ring land and get it back to spec. Wondering if they should reface the piston as well, pretty sure it's a lost cause and will probably be more bad than good.

EDIT: Looks like redoing ring lands on your own is pretty simple, I'll give that a try. It's not like this is a multi-million dollar IC engine, it only pumps air. I noticed that on the Champion there are a couple shims (really thin rings really) where the top and second rings are. What's the purpose of these?

On my new ring set they go on each side of the spacer. Check out this link I got from 9GUY9.

http://www.grantpistonrings.com/products/rings/ring_basics.htm

 

[Burgerkong]

On my new ring set they go on each side of the spacer. Check out this link I got from 9GUY9.

http://www.grantpistonrings.com/products/rings/ring_basics.htm

I knew about the scrapers, these weren't it. They are located in the first and second ring lands, underneath the top and second rings. So I have a total of 7 rings for some reason. I'll take a picture.

 

[jonathan75]

I knew about the scrapers, these weren't it. They are located in the first and second ring lands, underneath the top and second rings. So I have a total of 7 rings for some reason. I'll take a picture.

Is this in your new ring kit or old configuration?

 

[Burgerkong]

Is this in your new ring kit or old configuration?

My old configuration, I have no idea what the new kit includes.

http://store.industrialairpower.com/ZA10-Ring-Set-Kit_p_42738.html

http://store.industrialairpower.com/Z132-Gasket-Set_p_42615.html

http://www.compressorpartsstore.com/ProductDetails.asp?ProductCode=RK+5008&CartID=1

http://www.compressorpartsstore.com/ProductDetails.asp?ProductCode=Head+Kit+VT&CartID=2

Luckily I found a kit for both pumps.

 

[jonathan75]

My old configuration, I have no idea what the new kit includes.

http://store.industrialairpower.com/ZA10-Ring-Set-Kit_p_42738.html

http://store.industrialairpower.com/Z132-Gasket-Set_p_42615.html

http://www.compressorpartsstore.com/ProductDetails.asp?ProductCode=RK+5008&CartID=1

http://www.compressorpartsstore.com/ProductDetails.asp?ProductCode=Head+Kit+VT&CartID=2

Luckily I found a kit for both pumps.

I wouldn't trust the old configuration and ask around more and see what comes in the rebuild kit. You never know what the last bloke did was correct or not.

 

[Burgerkong]

Found out the 'shims' were called side sealer rings and were meant to reduce oil carry over.

 

[jonathan75]

What is your current status?

 

[Burgerkong]

What is your current status?

Refinishing my tank, started to remove the bulk of the surface rust, then give it a coat of stripper since I'm too cheap to pay someone to media blast it (I really just don't want to have to move the tank around).

On the garage side of things, I'm finally getting my workbench sorted out, so I won't have to work off of this tiny thing anymore:

But until I can get the bench set up, I won't have room for a roll cab, so my cantilever will have to take its place for now, it's astounding how much stuff you can load into it, not even filled to the brim yet!

 

[theamcaddict]

Any updates?

 

[Burgerkong]

Yes, update!

I am going to drop off the two crankcases to my local engine shop for a hot tank session, $20 each.

End update.