home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > maintenance & nonperformance

Reply
 
Thread Tools Display Modes
Old 07-18-2018, 05:20 PM   #1
90volvo
Board Member
 
Join Date: May 2017
Location: Eldorado Springs Mo.
Default new condenser unsure how much duracool?

I just put a larger condenser in my 240. I have duracool which I am a big fan of and have ran it for a while. I filled 30 percent of R12 capacity. But I think I am over charged and I cant seem to find a tempature pressure chart? Basically its 100 F. here and my pressures are 45 low and 145 on high side? Im 58 out the vents which is poor for duracool. I put 18 oz. of duracool in the system. Yes, is was pumped down and held a vacuum 24 hours. Please dont tell me duracool is dangerous. Ive read and heard all about it. Thanks.
90volvo is offline   Reply With Quote
Old 07-18-2018, 06:28 PM   #2
tryingbe
Boosting along.
 
tryingbe's Avatar
 
Join Date: Apr 2004
Location: Mesa, AZ
Default

Did you read what Duarcool have to say?

http://www.duracool.com/-faq.html
__________________
85 GLH 367whp
00 Insight 72 mpg
tryingbe is offline   Reply With Quote
Old 07-18-2018, 06:47 PM   #3
dbarton
Bored Member
 
dbarton's Avatar
 
Join Date: Nov 2002
Location: North of Dallas
Default

I think your pretty close to the correct amount. Volvo usually called for 2.9 lbs R12, which I think is about 16 oz. Duracool. You have a 42 deg drop in temp. Not horrible.

Was this with the fan on low or high? If high, try it on low. Lower fan should produce a cooler temp. Also was this idling or at speed?

Your low pressure seems a bit high to me. Mine runs under 25 psi.

Sounds like you did your homework, but I just want to mention if you accidentally added a bit too much oil, that can reduce efficiency.
Dave B
__________________


'84 242ti, owned since 2003. Always garaged since brand new. Old-school rounds because they look great. B21FT, iPd Springs/Sways, SDS EFI/IGN, TD04HL-15G, T5Z trans, Cooling Mist water/ethanol injection.
Volvo seeks Divorce from Volvo Enthusiast Community: www.prancingmoose.com/#novolvo
Dave's Volvo Page: www.davebarton.com
dbarton is offline   Reply With Quote
Old 07-18-2018, 07:01 PM   #4
ZVOLV
<Master Tech>
 
ZVOLV's Avatar
 
Join Date: Nov 2002
Location: California
Default

I just went by 85% of the r12 label on my 1990 240 when I went to r134. It was over 2 lbs. 2.5 lbs i think.
__________________
No Start Thread
ZVOLV is offline   Reply With Quote
Old 07-18-2018, 11:03 PM   #5
90volvo
Board Member
 
Join Date: May 2017
Location: Eldorado Springs Mo.
Default

Quote:
Originally Posted by dbarton View Post
I think your pretty close to the correct amount. Volvo usually called for 2.9 lbs R12, which I think is about 16 oz. Duracool. You have a 42 deg drop in temp. Not horrible.

Was this with the fan on low or high? If high, try it on low. Lower fan should produce a cooler temp. Also was this idling or at speed?

Your low pressure seems a bit high to me. Mine runs under 25 psi.

Sounds like you did your homework, but I just want to mention if you accidentally added a bit too much oil, that can reduce efficiency.
Dave B
I removed some and got my temps to 45. I can live with that, plus low side came down. This winter I want to mod it like you did your AC. But gonna wait til I can park the car for a while. A buddy of mine had a ford ranger that thing would blow 28 on a 100 degree day. Man that would be sweet.
90volvo is offline   Reply With Quote
Old 07-19-2018, 06:21 AM   #6
dbarton
Bored Member
 
dbarton's Avatar
 
Join Date: Nov 2002
Location: North of Dallas
Default

Quote:
Originally Posted by 90volvo View Post
I removed some and got my temps to 45. I can live with that, plus low side came down. This winter I want to mod it like you did your AC. But gonna wait til I can park the car for a while. A buddy of mine had a ford ranger that thing would blow 28 on a 100 degree day. Man that would be sweet.
55 deg drop is about what I'm getting and it works pretty well. Edit: thats at idle. My wife's new Forester gets a 57 degree drop at idle.

Highway speed is different though.
I'm getting a 69 deg drop at 55 mph in my 240. 32 deg F vent with ambient 101.
Dave

Last edited by dbarton; 07-19-2018 at 05:46 PM..
dbarton is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -4. The time now is 09:22 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.