Replacement ac lines

ChaseRoads · Mar 22, 2023

trying to get the ac going before spring and summer gets here. car is a 91 5.0. I pulled the compressor and each of the hoses and dryer to get everything cleaned up and o rings replaced. I'd like to replace the hoses and dryer with the ones from rock auto. Does anyone know if the dryer will have the half moon cut in the hose? or do I have to notch that out? or do I keep the hose and replace the manifold?

TIGGER · Mar 22, 2023

I have bought two from there. The one I received for my Saleen 3+ years ago did not come with it. I had to notch it myself. The one I purchased last year for my 89 did come with it and had to do nothing but install it. I believe they were both 4 seasons.

Mstng93SSP · Mar 22, 2023

I have bought probably 6 or 7 over the last few years working on various foxbodies and none of them no matter where I purchased them from had the notch in the end.

ChaseRoads · Mar 22, 2023

Mstng93SSP said:
I have bought probably 6 or 7 over the last few years working on various foxbodies and none of them no matter where I purchased them from had the notch in the end.

So I’ll be good to just use the old one as a template and notch the new one?

TIGGER · Mar 22, 2023

ChaseRoads said:
So I’ll be good to just use the old one as a template and notch the new one?

That is what I did.

90sickfox · Mar 22, 2023

When they don't come with it I pull the metal location tab out of the end on the compressor.

Mustang5L5 · Mar 22, 2023

I’ll throw a monkey wrench into this logic. When I installed my AC, I had some old NOS Ford lines. (Still have 1 unused) and they had F3ZZ part numbers and did NOT have the half moon cut. I had to remove the little clicking insert inside the manifold to install the line.

I damaged my original and purchased the LMR reproduction manifold and those do not have the clocking insert.

Here’s where I dealt with factory ford ‘93 lines not having the clocking feature on the lines. I had to remove those inserts.

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Mstng93SSP · Mar 22, 2023

I also remove the insert.

ChaseRoads · Mar 23, 2023

Follow up question. If I get a new compressor from rock
Auto. Do I still add ester oil? 8oz? Are they made with proper o rings for r134a?

Mustang5L5 · Mar 23, 2023

They don't make equipment strictly for R12 anymore. If you buy a reman compressor it comes with the O-rings that can be used for R134a and R12. I do not know what oil is in them but you can assume it's 134a compatible.

Even if you buy a replacement compressor it's the more modern parallel flow style that is more ideal for 134a, and not the old style serpentine condensers.

The entire industry assumes 134a is the gas that will be used in 99.9% of all new installs or repairs....unless you are me.

manicmechanic007 · Mar 23, 2023

The o rings are the same R12, R134a and 1234yf, R22, R410....
It is the oil that is the difference
New compressors these days usually have some 134a (pag) oil in them
You need to get that cleaned out if you replace a compressor these days and are using R12
Don't get me started on the new R1234yf

Replacement ac lines

ChaseRoads

do I need to lube this area?

TIGGER

Mstng93SSP

You have a nice rear end there Dave.

ChaseRoads

do I need to lube this area?

TIGGER

90sickfox

Wasn't a pretty sight...and I've got big hands

Mustang5L5

That is…until I whipped out my Bissell

Build Thread - Mustang5L5's Build Thread -

Mstng93SSP

You have a nice rear end there Dave.

ChaseRoads

do I need to lube this area?

Mustang5L5

That is…until I whipped out my Bissell

manicmechanic007

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Replacement ac lines

do I need to lube this area?

You have a nice rear end there Dave.

do I need to lube this area?

Wasn't a pretty sight...and I've got big hands

That is…until I whipped out my Bissell

You have a nice rear end there Dave.

do I need to lube this area?

That is…until I whipped out my Bissell

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