Denso nightmare problem

[frank rabbets]

Can anyone crack this nut please. I'm reconditioning an air con compressor and have all the internal bits ready to assemble. Ah, just a seal kit required, easy. No impossible. Denso will not answer emails and their web pages say they will not deal with the public. Compressor rebuilders I have talked to will not sell parts but will put mine together for £190. Surely their contract with Denso will say they have to sell to the public? If not is there something illegal I can accuse someone of. Just need seals....simple.

Frank

 

[Dave]

If you can't get a seal kit from Toyota, then you're a bit stuck. Rebuilders don't buy from Denso, as seals usually come from a company called Santech. For other parts, very few are commercially available, and are very expensive, so many rebuilds aren't rebuilt at all, simply repaired with used parts from other similar compressors. Or they go to the scrappies and buy used, give them a clean and repaint, and sell them on. Rebuilt compressors are just the same as rebuilt engines. If done properly, they will be more expensive than a brand new one. It's a lottery if a 'rebuilt' compressor is any good or not, and if not, they will send another or tell you it was installed wrong or you didn't follow the instructions properly - flush the system, new OE drier, correct spec oil etc. etc.

 

[Towpack]

Can anyone crack this nut please. I'm reconditioning an air con compressor and have all the internal bits ready to assemble. Ah, just a seal kit required, easy. No impossible. Denso will not answer emails and their web pages say they will not deal with the public. Compressor rebuilders I have talked to will not sell parts but will put mine together for £190. Surely their contract with Denso will say they have to sell to the public? If not is there something illegal I can accuse someone of. Just need seals....simple.

Frank

This is not an uncommon situation. The compressor rebuilders, as the name suggests, are offering you a rebuild/refurb service. There's no law that says they have to sell you the parts or anything else. A few years ago we had a VHS recorder, can't quite remember what make it was, maybe a Panasonic or a JVC, which packed up. After playing around inside I found the front end of the PSU had blown so went straight down to a local electronics supplier with a list of components and their sizes/ratings and guess what? They were nearly all one off components with strange values which were not generally available so I ended up taking it to a local service agent (who couldn't/wouldn't sell parts) and left it with them for repair, around £40 I think it was.

Frank, have a search on Alibaba, http://www.alibaba.com/trade/search...en&CatId=&SearchText=air+con+compressor+seals you might possibly find a manufacturer who will sell you parts but there may well be a minimum order. JMO

 

[warrenpfo]

Frank which compressor is it, 10PA15L/C or is it for a 100?

 

[frank rabbets]

Hi Warren

It's a 10p 15L (447200-0986) for a diesel 80 UK. The shorter nosed pump seals and 100 seals look the same.

What do we think of these people on ebay? "Mr Fomoco Motorparts" item number 310999407288

 

[StarCruiser]

If it's any help Frank, I'm picky but I think given the trouble you have already encountered I would happily buy that kit from that seller and take my chance along with the special tool for the seal installation. It's got to be worth a try IMO.

 

[bandsnbrakes]

Good seals, used them myself. Only complaint is thickness of o ring for front nose casing a tad smaller than OE had no issues though.

Hi Warren

It's a 10p 15L (447200-0986) for a diesel 80 UK. The shorter nosed pump seals and 100 seals look the same.

What do we think of these people on ebay? "Mr Fomoco Motorparts" item number 310999407288

 

[frank rabbets]

Hi band'. Have you had a long life out of them? Do all their shaft seals have "o" ring grooves in them. Not clear from the pictures.

 

[frank rabbets]

Just bought the seal kit from USA. They look like the genuine Santech ones. I think you're right about the reconned units Dave. Seals are only from 1---2 sources so I would think buying other parts would be impossible and even if possible too expensive. Those wishing to strip their pumps should not hesitate. It's only a matter of taking the 5 bolts out and it comes apart. Fasten the pump in the vice and lever just the nose off and then the front valve plates in one assembly. These are marked "F" for front. Then pull the main body off containing the top 5 cylinders which will release the 5 double ended pistons. Don't drop any they are PTFE coated and scratch easily. The bottom of the pump can now be pulled off and the bottom "B" valve plate assembly.

If the pump has seized it is scrap. A few parts may be OK as spares but the pistons and main pump bodies will be scrap.

I found the silicone oil dissolves in degreaser. I then washed all the parts in very hot water, to remove the oxygen, and fairy liquid. Bottle brushes came in handy for cleaning out the ports and other holes. Now on the fire drying out.

Corrosion can creep along the shaft and spoil it and the front seal so a pump rebuild on an old pump will defo increase it's life. Corrosion also creeps under the body sealing "O" rings but the bodies can be cleaned up. It is important to realise that there is pump pressure under the 5 bolt heads so these must be put back in with aluminium washers under their heads to give a good seal.

 

[bandsnbrakes]

Bit late now, but yes they are good seals about the only place you will find them Toyota do a kit but its expensive. Did one six months ago no issues yet, yes they are easy to strip just need to be super clean. Pay attention to the clutch shims for reliable clutch operation.
Good luck with your rebuild!!

Just bought the seal kit from USA. They look like the genuine Santech ones. I think you're right about the reconned units Dave. Seals are only from 1---2 sources so I would think buying other parts would be impossible and even if possible too expensive. Those wishing to strip their pumps should not hesitate. It's only a matter of taking the 5 bolts out and it comes apart. Fasten the pump in the vice and lever just the nose off and then the front valve plates in one assembly. These are marked "F" for front. Then pull the main body off containing the top 5 cylinders which will release the 5 double ended pistons. Don't drop any they are PTFE coated and scratch easily. The bottom of the pump can now be pulled off and the bottom "B" valve plate assembly.

If the pump has seized it is scrap. A few parts may be OK as spares but the pistons and main pump bodies will be scrap.

I found the silicone oil dissolves in degreaser. I then washed all the parts in very hot water, to remove the oxygen, and fairy liquid. Bottle brushes came in handy for cleaning out the ports and other holes. Now on the fire drying out.

Corrosion can creep along the shaft and spoil it and the front seal so a pump rebuild on an old pump will defo increase it's life. Corrosion also creeps under the body sealing "O" rings but the bodies can be cleaned up. It is important to realise that there is pump pressure under the 5 bolt heads so these must be put back in with aluminium washers under their heads to give a good seal.

 

[frank rabbets]

Well Dave has hit the nail on the head. I've talked to Denso UK aftermarket sales. They do not sell seals to ANYBODY. They recommended Motor Climate UK pump reconditioners who have already refused to sell me seals. So they were a bit stuck when I asked them " you don't sell seals to even your distributors then " and they mumbled "no". Denso make their own seals and do not buy in so obtaining genuine seals appears to be impossible, at least in this country.

 

[Paddler Ed]

Perhaps have a look at RockAuto in the USA? I would have also said FCPImport, but they've stopped supporting Japanese (Import) and focus on European stuff only now

 

[frank rabbets]

My seals, ordered on 4th arrived from USA on 11th. That was quick.

 

[frank rabbets]

It's driven me madder trying to work out how the valves go back together and I could not find a detailed picture either. However there's a picture here of what they should look like after I'd worked it out. There is a front and rear assembly. Each assembly is handed and the centre thick plates are marked "F" and "R".

The black/rubber coated plate side goes to the side of the pump and the silver/plain plate goes to the middle/piston body.

I could not rely on how the pumps came apart as they had been apart before.

Finger prints will rust the metal so it's important to keep lubricated.

 

[frank rabbets]

Believe it or not one of the pumps had been put together using this incorrect diagram!!!

http://acsource.net/acforum/viewtopic.php?f=1&t=7853&p=18943#p18943

 

[frank rabbets]

Spent all day making the spindle seat spreader.No good with computers.

 

[frank rabbets]

Should read spindle seal spreader.

 

[clivehorridge]

Brave task that Frank, digits crossed it works...