Search found 93 matches

by ice-n-tropics
Mon Oct 21, 2019 4:02 pm
Forum: Off Topic Chat
Topic: Old school ac
Replies: 3
Views: 7424

Re: Old school ac

Syria could be a hot place to grow up. I designed and tested and trained retro fit installers for military a/c for Iraq at MIL spec 130 deg F ambient using Coriolis flow meters for refrigerant side capacity calculations.. Old Tech: Dad would replace the bucket of ice under the heater floor vent outl...
by ice-n-tropics
Wed Sep 11, 2019 2:33 pm
Forum: Automotive Air Conditioning Forum
Topic: Pressures Equalize Instantly
Replies: 13
Views: 1440

Re: Pressures Equalize Instantly

bohica and crazy single discharge valve on scroll can get trash under seat or rotate slightly away from discharge hole and still perform at 50%, but equalizes immediately. to see and repair valve problem : 1) Scribe/scratch line across front housing and also comp body as refrence for accurate reasse...
by ice-n-tropics
Tue Aug 27, 2019 10:19 am
Forum: Automotive Air Conditioning Forum
Topic: '86 Minnie Winnie G30 350 Sanden 510
Replies: 9
Views: 498

Re: '86 Minnie Winnie G30 350 Sanden 510

Time will tell if you are better off having ignored advice to get a genuine SD7H15 from Tim at A/C Kits?
by ice-n-tropics
Fri Aug 09, 2019 11:37 am
Forum: Automotive Air Conditioning Forum
Topic: '86 Minnie Winnie G30 350 Sanden 510
Replies: 9
Views: 498

Re: '86 Minnie Winnie G30 350 Sanden 510

only one belt is needed for 510 (162 cc) replacement SD7H15 (149.5) for R-134a and less vibration,
SD508 is only 138 cc.
by ice-n-tropics
Wed Jul 17, 2019 11:40 am
Forum: Automotive Air Conditioning Forum
Topic: 2006 Civic DX AC not working
Replies: 10
Views: 1324

Re: 2006 Civic DX AC not working

Dead reckoning for computer think: 1) charge is too low or high causing abnormally high discharge gas temp. Yes, scroll system low charge results in high temp discharge as charge is lost down to aprox. 12%, 2) fans not working 3) limp home mode over ride due to drive line problem or radiator temp. 4...
by ice-n-tropics
Thu Oct 25, 2018 1:35 pm
Forum: Off Topic Chat
Topic: Compressor shelf life?
Replies: 3
Views: 7870

Re: Compressor shelf life?

York shelf life is influenced by the position of the comp during storage.The box is marked to store with the shaft face down so that the face type shaft seal is immersed in oil. The compressor is shipped with a holding charge which should remain. The old spec mineral oil has much more tolerance for ...
by ice-n-tropics
Thu Oct 04, 2018 2:52 pm
Forum: Automotive Air Conditioning Forum
Topic: Can PAG and mineral coexist in old R12 system?
Replies: 3
Views: 8296

Re: Can PAG and mineral coexist in old R12 system?

g'day mate, PAG in R-12 system? GM brochure GM-0011 indicates that removal of mineral oil during retrofit (mostly paraffinic in GM's case) is not recommended. Long story short, GM/USA avoids residual flush. OEMs are not all in agreement. Mineral oil and R-134a are far apart on the polar compatible s...
by ice-n-tropics
Tue Oct 02, 2018 8:35 am
Forum: Automotive Air Conditioning Forum
Topic: SD7H15 enhanced as direct replacement?
Replies: 1
Views: 7327

Re: SD7H15 enhanced as direct replacement?

SD7H15 Enhanced provides 12% better cooling by opening suction an discharge valves wider and also reducing re expansion of gas left in cylinder at TDC before suction down stroke. My original goal was to provide better cooling for diesel sleeper cab big rigs and off road vehicles. This model is 10% n...
by ice-n-tropics
Sun Sep 16, 2018 1:47 pm
Forum: Automotive Air Conditioning Forum
Topic: Mini compressor/less CID output?
Replies: 6
Views: 4277

Re: Mini compressor/less CID output?

I'd modify your Impala OEM AC to only use recirculated air (not 20% OSA) and a additional 100% hot heater water shut off in Max AC mode. Then your OEM AC would work as good as a Vintage Air HVAC replacement. Additional Dynamat floor, under hood evaporator housing and firewall insulation helps. Vinta...
by ice-n-tropics
Thu Sep 13, 2018 2:41 pm
Forum: Automotive Air Conditioning Forum
Topic: AC compressor leaking - Can I patch it?
Replies: 5
Views: 2364

Re: AC compressor leaking - Can I patch it?

As Band of Brothers we sometimes offer to complete a thought (scroll shedding). Scroll compressors use one hard anodized scroll and one soft aluminum scroll. A scroll system with several hundred hours will have aluminum gray oil due to the soft scroll conforming to the shape of the hard anodized scr...

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