I heard so many things about bad rebuilds on the RV2’s I decided to rebuild one myself for my 300K. It is sitting on the bench and will be going into the car in the next month.
The things I have learned:
There were three basic differences in the RV2 compressors. There is a 9.x cubic inch version and a 10.x cubic inch version. In 1964 both were used.
In the later years, some time in the late 1960’s they made a change in the compressor block. The deleted the oil pressure regulator ball and spring. There are a LOT of reports of rebuilders playing mix and
match with the RV2 parts and some people have received a rebuild compressor with a ball and spring block that had no ball and spring. The unit lasted a couple of months then was junk. The stock ball was rubber, I switched that to steel.
I have also heard of one instance were someone got a unit that had the 9.x crankshaft and the 10.x pistons and rods which are shorter and ended up with a too small displacement.
I managed over a month or two to get my hands on a NOS crankshaft, NOS set of rods and pistons, NOS nose piece, NOS reed valves and the like.
The rear crankshaft bearing is a bushing that is VERY hard to change. It has to be removed with a dremel. A real PITA. Most rebuilders do not change it.
The available gaskets for in the connection on the intake and the exhaust do not fit it properly. I found four NOS front, but for the rear I am making them. If you use the steel ones being sold, I suspect
they will in time leak as they do not fit well.
Note that the 9.x nose and the 10.x nose used different bearings. They went to a larger diameter bearing on the 10.x unit. I also figured out that you can get the larger nose with the lager bearings and take
a 9.x block and make it a 10.x block. The blocks are the same.
I also picked up a ball bore brush from brush research the correct size and gave the block bores a nice cross hatch.
It is not too bad to rebuild. Small and on the bench.
Anyone who wants to talk more about rebuilding one can contact me.
James
From: chrysler-300-club-international@xxxxxxxxxxxxxxxx <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
On Behalf Of Steve
Sent: Thursday, May 23, 2024 21:02
To: Michael Corrigan <mcorrigan@xxxxxxxxxxxxxxx>
Cc: Nick Taylor <nicksgaragesd@xxxxxxxxx>; Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: Re: {Chrysler 300} 64 K AC compressor
I have heard many poor comments about the Original Air Group and the quality of its kits to rebuild RV2 compressors and about their responsiveness to inquiries. I have thought about getting a rebuilt RV2 compressor for a few of my cars
as well and decided to go with this source on Ebay and I too will be using R12 refrigerant:
Here is a link to just one of his rebuilds available that would apply to your year of manufacture:
His feedback is 100% on hundreds he has sold on Ebay. I talked with him on the phone about his background and he said many years ago he owned a company that did RV2 rebuilds and other makes as well and after his company got out of the
full time business, he retired and just rebuilds these compressors using his vast supplies of parts that he stockpiled many over many years.
It seems with feedback this strong, he would be a good person to buy from as opposed to Original Air that has poor feedback. I will be ordering one soon myself.
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