Please see charts:
http://eaccess.smpcorp.com/...hers-FourSeasons.pdf

If any of you can help me, or have used these before , or are familiar with them please shed some light.

Main question is how does the "pilot insert" get used?

I have a new V5 compressor which is designated for an 88 Fiero 4 cyl, it came with 2 washers that appear to be D on the chart.
Those wont seal it.
My issue is this is a setup on a V8 car and the hose block isn't from an 88, I'm not sure what year it is from.
It looks like hose block 1.
So I need to use some different sized sealing washers and an insert to make it leak free.
Not sure how the insert goes.

Also where it says compressor suction port size, they would be referring to the inner diameter of the flat surface the washer rests upon on the compressor correct?

[This message has been edited by 2.5 (edited 07-23-2018).]

Some A/C compressors use O rings to seal the compressor fitting while others use sealing washers. If you look at your compressor it is easy to tell. Just use the same sealing mechanism that was on there originally. If your compressor has no O ring groves then I would guess that it uses sealing washers.

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quote Originally posted by Dennis LaGrua: Some A/C compressors use O rings to seal the compressor fitting while others use sealing washers. If you look at your compressor it is easy to tell. Just use the same sealing mechanism that was on there originally. If your compressor has no O ring groves then I would guess that it uses sealing washers.

Thanks its a bit more wild than that in my instance. But I believe I have the right ones chosen. The old compressor had the big o rings, the new one needs sealing washers, the hose block is from a different year Fiero , its also a V8 car, non stock hoses, etc.

Just fyi
The green one with the small insert, and the black one, seem to have worked.

I went through this a couple of years ago. One of the biggest pains in the ass that I've ever had to deal with.
The metal bushing fits into the end of the manifold lines, and should butt up against the port in the end of the compressor. (BTW... The small line is the high pressure/discharge port. It's the one with the muffler. The large line is the low pressure/suction port.)
The first time I did this, I also couldn't figure out where the bushing went, so I just left it out. The result was that the rubber seal was pulled partially out of the sealing washer, and tried to get sucked into the line.

My bushing was a force fit in the end of the line, and I still don't think I got it in, far enough. It should fit so that there is no gap around the perimeter.

Edit - I think I used the green washer with the small bushing; and the "natural" washer.

[This message has been edited by Raydar (edited 08-05-2018).]

quote Originally posted by 2.5: Just fyi The green one with the small insert, and the black one, seem to have worked.

Is this still working well?

It is working, When I put the "insert" in it didn't really fit, I tried pressing it in, and that was sort of not going straight. I couldn't risk fubaring the hose block or taking time to find another insert, so elieve it or not I used a little Loctite super glue to mount it to the hose block.
When it is mounted make sure there is a gap between the hose block and compressor face that you can see between, even after it is tightened.
I also recommend using Nylog Blue at all fitting sealing points or threads as well. https://www.trutechtools.com/RT201B


Looks like the pics I chose to use above are now weird....

[This message has been edited by 2.5 (edited 09-12-2018).]

Thanks for the response.
I had the same issue with my insert. Ended up having to press/drive it in.
The first time I did this, I left the insert out. The rubber seal on the green washer ended up getting partially sucked into the discharge tube.
If yours quits working, that should be the first place to start looking.