C2 A/C

[Jeremy Hedges]

I'm drawing a blank here, on the drier it has an arrow saying "in", is the arrow go toward the condensor or away from it?

Thanks

Jeremy Hedges
#31711

[Wayne M.]

Re: C2 A/C

Original dehydrators are marked "Cond" and "Evap" to avoid mistakes. Does yours have a constant cylinder diameter up to the top cap weld, or does it "neck" down ?

But to answer your question, the "in" (IMO) would be from the expansion valve at the evaporator, and the "out" [if stamped] would be towards the condenser on the front of the radiator.

[James W.]

Re: C2 A/C... pulley/belt groove alignment???

Jeromy and Wayne,

Not to hijack this thread, but (Wayne) I need to know if your crank to water pump pulley belt grooves for the a/c compressor line up on your 1965 L79 & a/c? I recently installed the newly rebuilt 326 water pump that I had Bill Mock do for me and I'm puzzled because the upper and lower belt grooves for the alternator line up perfectly but the a/c upper and lower belt grooves do not. This is an original car with the correct pulleys as discussed in an earlier discussion this year. I guess when I took the car apart, (7 months ago) I did not pay much attention to the belt & pulley alignment so I have nothing to compare to.

Any help or pictures would be greatly appreciated.

Best Regards,

James West

[James W.]

Re: C2 A/C...heater hose hard pipe orientation??

Another question I have is; what orientation or direction is the 5/8" heater hose hard pipe supposed to be facing? Is the short end supposed to face towards the water pump or does the long end face toward the water pump to get the rubber hose further away from the a/c compressor pulley?

Thanks,

James West

[Wayne M.]

Re: C2 A/C... pulley/belt groove alignment???

Answer your second question first -- the long length of the curved hard pipe points towards the water pump.

Now for your belt alignment -- I recall from your earlier posts that you have a late '65 with C60, L79 and power steering. (BTW my air car is early 014xx with L76). I have to say my belts line up perfectly (IMHO). I have the same water pump pulley that you have (3848904) although this doesn't show in the AIM -- it DOES in the P&A30 book (July '65 rev.)

Are you saying that the water pump and crank pulley grooves are in direct alignment (upper to lower), and that the alternator lines up with the INNER groove (closest to engine), but the problem is that the outer groove is at an angle to the compressor pulley ?

Are you able to post a pic ? Do you have the correct pulley on the compressor ?

[James W.]

Re: C2 A/C... pulley/belt groove alignment???

Wayne,

Yes the compressor is the original that came on the car and to my knowledge it has never been replaced, at least not since we've owned it since 1974. I'm trying to remember if the alignment from the compressor pulley to the water pump or crank pully is off, can't remember. I'll get a picture tonight to send you, I do not have a host sight to post pictures.

Thanks,

James West

[Don Y.]

Re: C2 A/C... pulley/belt groove alignment???

The A/C drier is installed to filter and remove moisture from the liquid refrigerant coming from the condenser where it condensed from a high temp/pressure gas. The "in" side should come from the condenser and the "out" side should exit the drier heading to the TXV or expansion valve. Always installed in what is also called the liquid line.
Don Yesacavage

[Michael M.]

Re: C2 A/C

James do you have a WP pulley reinforcement spacer that I think I saw in one of your pictures? I have the same pulley as you and have a good alignment without the reinf. spacer. Besides I don`t have one. My compressor doesn`t have the large pulley 5 1/2" I think. Mine is the regular one at 5". Best I can remember. Mike

[James W.]

Re: C2 A/C

Mike can you send me a picture of the gap between the upper water pump pulley and the water pump body near the bypass hose? I'm wondering if the water pump pulley mounting flange needs to be pressed into the shaft further. Send it to me at jwest@oppd.com.

Thanks,

James West

[Mark G.]

Re: C2 A/C

James –

Your pulley alignment condition is tricky because the ’65 A.I.M. does not show L79 components very well. One thing to check would be the washer/spacer #3706737; four are needed to position the A/C compressor forward to compensate for the thicker harmonic balancer. My ’65 A.I.M. indicates these washers for the L76; the ’66 A.I.M. has “L79 only” written over it.
Please post your crankshaft and W/P pulley part numbers, if you have them. I would like to compare the configuration with the ’66 L79 pulleys.

Mark #35760

[James W.]

Re: C2 A/C

Mark,

Send me an email and I'll send you some pictures and the at least the water pump pulley p/n, the crank pulley may not be visible now that it is back on the car. As I've said in an earlier post, the pulleys are original and have not been off the car until recently. We've owned the car since 1974.

James West

[Michael M.]

Re: C2 A/C

James, I will have a pic in about an hour for you. Thanks, Mike

[Michael M.]

Re: C2 A/C

James, from the nub on the end of the water pump shaft to the face of the bolt hub is .410. The space from the back of the pulley to the boss of the bypass is approx. 1/8" as best I can measure by ruler.




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[Michael M.]

Try Again

I may have forgotten how to post pics!