Denso 10P15E conversion

[gtgt__bangbang]

I had a Denso 10P15E on the shelf long enough, want to install it along with a R134 change over. Compressor was spanking new old stock but marked for R12, bought awhile back.


The four o-rings under the manifold were black (viton?), they appear to be 23.8 x 2.4 and Pelican lists those ( sadly they sent me the wrong size this time).

But now I am thinking I might actually change ALL the rings and seals in the compressor over to R134 compatible.

Does anyone know

a) is it worth the trouble? will the body orings fail like refrigerant line black orings?

2) I see 10PA / etc compressor re-seal kits available. Any experience with ? Are these suitable for 10P15E ?

iii) Does anyone have the shaft seal installer tool ? I would rent, buy , swap tools in need, etc. I see tools online for only about 1 dozen USD, but listed for DA6, sidelong mention of Denso ... any one know if same tool ?

thanks for all the good answers

[notMyScreenName]

Originally Posted by gtgt__bangbang

2) I see 10PA / etc compressor re-seal kits available. Any experience with ? Are these suitable for 10P15E ?

Yes. I've done it (mine was leaking badly from most of the seals) and it's easy. I used this kit and this walkthrough. One caution, in that walkthrough the instructions will (probably) have you put the carbon (shaft) seal in upside down. Don't do that. It won't work and you will ruin it. You can get torque specs from the Toyota manual here.

iii) Does anyone have the shaft seal installer tool ? I would rent, buy , swap tools in need, etc. I see tools online for only about 1 dozen USD, but listed for DA6, sidelong mention of Denso ... any one know if same tool ?

I didn't need one. A long socket worked just fine to get it out (you wind up destroying the old seal but since you are replacing it it really does't matter. If you aren't planning to replace the carbon seal then you don't need to take it out.) And you definitely don't need a tool to install the shaft seal. Just slide it on. I didn't need any special tools for anything but if it is hard to get the clutch or pulley off you may need a threaded puller. But I didn't.

Addendum: I didn't answer your first question because I just don't know anything about O-ring materials beyond that there are like a zillion of them. But looking at the research I did before I rebuilt my compressor: the Porsche Technical Bulletin covering R134 conversion (which also contains specs on how much oil and refrigerant to put in) does not require any o-rings to be replaced so the factory seals may be fine with R134. I did replace all the O-rings in the whole system on mine but I had the whole thing apart anyway since I had the expansion valve off to flush all the lines and since they were all 25 years old I just went aead and replaced all the O-rings.

The Porsche Shop Manual has the torque specs for all the fittings (If you don't have it I can post the relevant info if you need it).

[gtgt__bangbang]

thanks

I really want a seal tool if I have to go there; 12 bucks maybe ? but I'd rather share.

I'll look at your links , there were a couple good vidys on utube, main reason I thinking about tackling it.

The good guy at Griffiths mentioned compressor orings right before he got tired of all my questions. There are are four juicy ones under my manifold casting. Easy to R&R. THe rest require splitting the cases, more grit required

[gtgt__bangbang]

thanks again for the links and pointers NotMy

I see other word also that a seal install tool is not called for, as there is no lip seal in the 10P15.

As this compressor is new/unused, thus the orings not "seasoned", other sources say it is a coin flip whether worth it to dismantle.

At this time, I am going to replace the four 24x2.4 ( nominal ) rings under the manifold, NOT do the case orings ( fyi, some steel plate gaskets inside the body are NLA ; some kits are orings, carbon seal components and washers) , build the car and watch for bubbles.

Easy enough to pull this compressor from car should it leak, and I can do my own evac & fill so place your bets .