Search found 153 matches

by Al9
Mon Jul 13, 2020 2:22 am
Forum: Automotive Air Conditioning Forum
Topic: Rattling from new receiver dryer
Replies: 6
Views: 503

Rattling from new receiver dryer

Hi everyone. Just got a new receiver dryer for my car. I had a new unused (still sealed) one left from a previous condenser job (new condenser eventually came with a new R/D already fitted so i kept it), but i accidentally dropped it from a small height even when still boxed. The one that just came ...
by Al9
Mon Jul 13, 2020 12:02 am
Forum: Automotive Air Conditioning Forum
Topic: 99 Maxima poor cooling *SOLVED*
Replies: 18
Views: 1645

Re: 99 Maxima poor cooling

Or you could just turn AC on as soon as you start a cold engine, while the coolant is still cool. If you get anything better than 70F vent - and ideally this has to happen in a few secs with a brand new compressor and a properly charged and oiled system, more so when in the shade - reheating is your...
by Al9
Sun Jul 12, 2020 2:31 am
Forum: Automotive Air Conditioning Forum
Topic: 99 Maxima poor cooling *SOLVED*
Replies: 18
Views: 1645

Re: 99 Maxima poor cooling

Variable displacement compressor and TXV is perhaps the hardest MVAC system to diagnose. Since you state you fitted a new compressor i highly doubt it's already worn, unless your new compressor is in fact a bad reman unit (with variable displacement compressors, piston blowby becomes a real issue; i...
by Al9
Fri Jul 10, 2020 7:43 am
Forum: Automotive Air Conditioning Forum
Topic: 91 Volvo 240 AC compressor choices
Replies: 3
Views: 278

Re: 91 Volvo 240 AC compressor choices

You're right, the DKS and TM auto sized units feature dedicated oil drain/fill ports. Perhaps it's meant to make the oil drain/fill process easier and quicker.
by Al9
Fri Jul 10, 2020 2:07 am
Forum: Automotive Air Conditioning Forum
Topic: Conservative A/C Restore?
Replies: 9
Views: 624

Re: Conservative A/C Restore?

If i'm not mistaken the S6 is a Denso redesign. In that case the metal piston rings have been replaced with a polymer coating. So at least less friction and hence thinner oil (runs on PAG 46), which could also mean better heat exchange. 5 pistons so smoother rotation compared to the 3 piston A6.
by Al9
Thu Jul 09, 2020 1:29 pm
Forum: Automotive Air Conditioning Forum
Topic: 2014 GMC Sierra not cooling well
Replies: 10
Views: 676

Re: 2014 GMC Sierra not cooling well

robmaxfli wrote:"the pass. side is cold but the driver side is warm"

This is also a typical sign of a seriously starved evaporator.
by Al9
Thu Jul 09, 2020 12:50 pm
Forum: Automotive Air Conditioning Forum
Topic: 91 Volvo 240 AC compressor choices
Replies: 3
Views: 278

Re: 91 Volvo 240 AC compressor choices

The Diesel Kiki is a double acting piston design. That is, no isolated crankcase. It depends upon a steady supply of oil from the suction gas so that it can be picked up and then sent to any moving part within the compressor housing. 100% splash lubrication. Hence, an abnormally high superheat condi...
by Al9
Thu Jul 09, 2020 11:33 am
Forum: Automotive Air Conditioning Forum
Topic: 2014 GMC Sierra not cooling well
Replies: 10
Views: 676

Re: 2014 GMC Sierra not cooling well

AC alone with no reheat still has a demisting effect though. Especially if kept in top shape. Just adjust the blower fan to a lower speed if you feel too cold.
by Al9
Thu Jul 09, 2020 3:10 am
Forum: Automotive Air Conditioning Forum
Topic: Conservative A/C Restore?
Replies: 9
Views: 624

Re: Conservative A/C Restore?

I'd use the new Sanden compressor. Energy efficient design, and a better lubrication system compared to the sumpless A6 version and the R4.
by Al9
Wed Jul 08, 2020 12:40 am
Forum: Automotive Air Conditioning Forum
Topic: 1961 cadillac conversion
Replies: 48
Views: 5443

Re: 1961 cadillac conversion

Just make sure to have a binary/trinary pressure switch somewhere on the high side that turns the clutch off once the pressure gets too low. That way the compressor will be spared in case the system suddenly loses a large amount of refrigerant for whatever reason. Prolonged operation with low refrig...

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