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R134A Conversion Couplers

Turbine1 on Sat April 11, 2009 11:32 AM User is offline

Year: 1981
Make: Mercedes Benz
Model: 280E
Engine Size: 2.7L
Refrigerant Type: R12
Ambient Temp: 55F
Pressure Low: None
Pressure High: None
Country of Origin: United States

Am in process of rebuilding/converting AC system to R134A.
I have a couple of basic questions:
1: Will be purchasing conversion couplers for the low and high side service ports. ACKITS website has two versions for the high side, a 7/16-20 (1/4") 16 MM Coupler, OR a 3/8-24 (3/16") 16 MM Coupler. So how do I know which one I need. Is it as simple as measuring the thread on the existing R12 port?
2: This car has a York/CCI model 210 compressor. Will need 2 special "Rotolock" teflon seals for the connections at the head, York P/N 028-07146, and a new suction screen, York P/N 026-19841. Are these parts available from ACKits? (not currently in their on-line catalog).
Thanks guys

TRB on Sat April 11, 2009 12:06 PM User is offlineView users profile

Your talking about the adapters. Simple way to tell, use you R12 hose for servicing an a/c system. If the high side hose attaches to the high side port it is the 1/4 adapter. If the high side hose is too big for the service port you need the 3/16th adapter.

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When considering your next auto A/C purchase, please consider the site that supports you: ACkits.com
Contact: ACKits.com


Edited: Sat April 11, 2009 at 12:06 PM by TRB

mk378 on Sat April 11, 2009 3:10 PM User is offline

You probably have 1/4 ports on both sides. I think 3/16 ports were not common until the late 1980's when lawyers decided that it was too easy to blow yourself up by hooking a can of R-12 to the wrong port.

Simple way to tell is take the dust cap off of the low side and see if it also fits on the high side.

Take the shrader valves out of the stock ports before putting the adapters on. The ones ACKITS sells have their own shrader valves.

TRB on Sat April 11, 2009 3:15 PM User is offlineView users profile

Quote
Originally posted by: mk378
Simple way to tell is take the dust cap off of the low side and see if it also fits on the high side.

That will work also!

-------------------------
When considering your next auto A/C purchase, please consider the site that supports you: ACkits.com
Contact: ACKits.com

Turbine1 on Sat April 11, 2009 5:28 PM User is offline

Thanks guys. I checked the caps, both same size.
Any idea on the other question, regarding parts for the York compressor. Can ACKITS.com find these for me or should I look elsewhere?

Kev

TRB on Sat April 11, 2009 6:04 PM User is offlineView users profile

Should have the Teflon seals and I'll check on the other Monday when I get back at the shop.

-------------------------

When considering your next auto A/C purchase, please consider the site that supports you: ACkits.com
Contact: ACKits.com

Turbine1 on Sun April 19, 2009 4:43 PM User is offline

If you could take a look at availability/price the 3/4" tefon seals I was going to place an order in a couple of days for a few items.
Also need Qty 2 oil drain plug o-rings (CCI/York part # 028-21549).
I can get the strainer from Mercedes if you don't have in stock.
Thanks

TRB on Mon April 20, 2009 8:46 PM User is offlineView users profile

Got side tracked today, I just sent myself a reminder to look into these items in the morning.

-------------------------

When considering your next auto A/C purchase, please consider the site that supports you: ACkits.com
Contact: ACKits.com

JACK ADAMS on Tue April 21, 2009 12:13 PM User is offline

Kev,

we do have the o-rings that you need. The oil drain plug o-rings part# 40-02514 and the Teflon seals part# 21-26051. If you wish to place your order online and add these items in the additional info box we can add them to your order for a few extra bucks as they are not listed on web.

Turbine1 on Wed April 22, 2009 8:59 PM User is offline

Outstanding!
Will get on ACkits and place order when I get a few spare minutes. Many thanks for your help.

Turbine1 on Sat April 25, 2009 12:34 PM User is offline

Placed order today for seals and some other items. Thanks for your help, and thanks for all the great info on the forum,

Kev

TRB on Sat April 25, 2009 12:37 PM User is offlineView users profile

Thanks for the support!

-------------------------

When considering your next auto A/C purchase, please consider the site that supports you: ACkits.com
Contact: ACKits.com

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