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Old 03-28-2021, 02:54 AM   #1
Forg
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Default PS pump compatibility

... for 240's (dagnabbit forgot to put that in the thread title!).

So it seems I've done something Dumb and bought the STS Machining A/C-delete bracket despite the fact that it doesn't appear to be compatible with my 242GT's York^D^D^D^Dearly PS pump.

I've got all the heavy useless crap out now & don't really feel like putting it all back in again, so I'm wondering whether other 240 pumps (which are compatible with the STS bracket!) are a simple bolt-in replacement for the York pump?
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Last edited by Forg; 03-28-2021 at 06:49 PM..
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Old 03-28-2021, 01:54 PM   #2
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Not familiar with a York PS pump. York made AC compressors.
I'm guessing it's a Saginaw pump like first photo below?

My setup is not comparable, I still have AC (newer rotary compressor) and I changed to a later 240 pump years ago. When I change from the Saginaw to the later type it was a simple bolt in swap for me.
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Old 03-28-2021, 03:30 PM   #3
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The late model 91-93 pumps are a bolt in replacement as Dave shows above. They are all Saginaw pumps, all three types.
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Old 03-28-2021, 06:57 PM   #4
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Sorry my bad, Saginaw not York.
Wasn't aware the late ones were the same manufacturer.

OK thanks for the info!
I assume the hose-fittings are the same too, on the back of the pump? I need to check mine, but it looked like the "out" hose might have had a screw-on fitting on it whereas the STS site images of the newer pump looks like there's a barbed fitting on the back (but I need to double-check).


The reason for doing all this is that I've been chasing an annoying vibration ever since getting the car registered 16 years ago, all the powertrain stuff has been balanced & adjusted by People Who Know What They're Doing but one of said people noticed the AC compressor was all akimbo due to the custom mount to fit the rotary AC compressor into the York compressor bracket. He's seen accessory pulleys closer to alignment that caused vibrations just as bad. Given I've gone 16 years without aircon I figured I'd experiment with totally removing the unused aircon compressor, see if that helps with vibrations. But the experiment is getting bigger than I expected ...
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Old 03-28-2021, 07:30 PM   #5
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I think you need to change to the 86+ (or so) accessories bracket to use the newer pumps - either the one with the external reservoir or the later one with the built in reservoir. The mounting and pulley spacing on the Saginaw teardrop pump is different.

Try looking through For Sale or Wanted for "Delete Bracket" and see if those posts explain the different A/C Delete Bracket options and issues.
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Old 03-28-2021, 08:04 PM   #6
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You need the early (76-'84) bracket for the "canned ham" pump.



You bought the bracket for the late ('85-) remote or integral plastic reservoir pump.

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Old 03-28-2021, 08:06 PM   #7
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Thanks bobxyz ... I have the STS Machining bracket that suits the newer style pumps, due to misunderestimating the (lack of) compatibility with my late 70's style pump. I also have the with-aircon bracket as originally installed in the car.

So I'm looking at whether to get a late-model pump to use with the STS bracket, or an early-model no-aircon bracket to use with the existing pump.


(*) I can buy a new pump & get it delivered for the same sort of money as some people want for the early factory no-aircon bracket.
(*) I'd be unsurprised if removing the old stuff (the OEM brackets, the Mitsubishi rotary compressor which is lighter than the York one, and the early PS pump) and fitting the STS bracket & matching pump saves ~20kg. That old stuff is HEAVY!
(*) the main sources for a new late-model PS pump with integrated reservoir don't include the pulley - suspect I may need to find one on the used market.
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Old 03-28-2021, 08:16 PM   #8
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The pressure hose is also different.
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Old 03-28-2021, 11:02 PM   #9
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Quote:
Originally Posted by hiperfauto View Post
The pressure hose is also different.
Thanks ... now you've said that, it's obvious from that diagram you posted ... unsure if it's worth the effort of swapping hoses over, I must admit, it was going to be messy enough if I could swap the pump out without alkso doing hose-surgery ...
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Old 03-29-2021, 06:10 PM   #10
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I have a spare newer style pump and hose if you need it. I may also have the mounting brackets for it too
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Old 04-06-2021, 11:00 PM   #11
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Quote:
Originally Posted by AnthonyHardy2 View Post
I have a spare newer style pump and hose if you need it. I may also have the mounting brackets for it too
Thanks for that, but I think the tyranny of distance will be the issue with that.

Quote:
Originally Posted by hiperfauto View Post
The pressure hose is also different.
Hey, I don't suppose you have links to any images that show the early aircon bracket?
I spoke to a parts supplier the other day who said I needed the "aircon" bracket, but unsure if he mis-spoke (and the place is shut down 'til next Monday) ... would be good to know what I was looking at.

Coincidentally there's someone on eBay in the UK selling what appears to be the bracket I need ... but only the bracket, not the mounting-arms, and given that they're different to the with-aircon arms the chances of having those without the bracket seem pretty low!
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Old 04-07-2021, 12:24 AM   #12
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Quote:
Originally Posted by Forg View Post
Hey, I don't suppose you have links to any images that show the early aircon bracket?
I spoke to a parts supplier the other day who said I needed the "aircon" bracket, but unsure if he mis-spoke (and the place is shut down 'til next Monday) ... would be good to know what I was looking at.!
Wait, I thought you were trying to eliminate the A/C. Why would you need the "aircon" bracket. He must have mis-spoke.

Just in case here's a pic of the compressor bracket for cars with power steering.

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Old 04-07-2021, 08:44 PM   #13
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He muttered something about how the aircon-only bracket was the bracket I needed and the PS pump would attach, I'm hoping he mis-spoke rather than expecting me to make up some sort of brackets/arms to attach to that (because I may's well make-up some arms to use the plate I already have for the late-style pump).

Thanks for that image ... I do have one of those, although it's currently attached to a 16yo as-yet-unused-apart-from-front-pulley Mitsubishi AC compressor ... A mate has one of the aircon-only brackets so I can compare & be sure this guy isn't giving me the aircon-only bracket that I don't want rather than the PS-only bracket which I want.

Last edited by Forg; 04-07-2021 at 08:51 PM..
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