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| Pressure Test https://slantsix.org/forum/viewtopic.php?t=18351 |
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| Author: | jpope [ Sun Jul 02, 2006 1:54 pm ] |
| Post subject: | Pressure Test |
I just put a new radiator in and there is no pressure building within the system. There doesn't seem to be any coolant leaking that I can see. How can I pressure test the system here at home? Thanks. |
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| Author: | SlantSixDan [ Sun Jul 02, 2006 2:29 pm ] |
| Post subject: | |
What are you observing that indicates no pressure is building in the system? The fix is probably as simple as a new correctly chosen radiator cap, see here. |
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| Author: | jpope [ Sun Jul 02, 2006 3:31 pm ] |
| Post subject: | |
After running awhile, either down the highway or around town, the top hose is still soft. I've tried a few different 16lbs caps, no luck. Had pressure with the old radiator. |
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| Author: | SlantSixDan [ Sun Jul 02, 2006 5:52 pm ] |
| Post subject: | |
OK, then the new radiator may well have a defect, such as a warped radiator cap seat that prevents the cap making an effective seal. What brand is the radiator, and where did you get it? |
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| Author: | jpope [ Sun Jul 02, 2006 6:58 pm ] |
| Post subject: | |
I went cheap and got an autozone one for about $150. All I could afford right now. |
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| Author: | SlantSixDan [ Sun Jul 02, 2006 8:01 pm ] |
| Post subject: | |
While even the highest-class manufacturer can have defective parts now and again, I'm afraid we may have here yet another example of how "cheap" parts often wind up costing more than "expensive" ones in the long run. What brand is the radiator you bought? |
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| Author: | jpope [ Sun Jul 02, 2006 10:26 pm ] |
| Post subject: | |
Ready-Rad is the brand. And I completely agree with the 'cheap' parts comment, told myself a long while back I wouldn't buy any more. Just in a bind and had to get a radiator now, the dart's a daily driver. |
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| Author: | Eric W [ Sun Jul 02, 2006 10:54 pm ] |
| Post subject: | |
To bad you couldn't have found a brand new 22" Modine in a wrecking yard for 60 bucks. Did I mention I did?  I would try a new cap like suggested....that fixed my cheap-o barely worked 19" radiator a couple of times in the 6 years I ran it. Autozone may have a tester you can rent (the only thing they are good for) to pressure test the system and also check your cap.
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| Author: | SlantSixDan [ Mon Jul 03, 2006 9:04 am ] |
| Post subject: | |
Well, even a cheap radiator should have some kind of a warranty. Take it back! |
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| Author: | jpope [ Mon Jul 03, 2006 11:05 am ] |
| Post subject: | |
Yep, it has a warranty. The only reason I went ahead and got this cheap one is cause of it's lifetime warranty. Just want it to last a year or so. But I feel a little silly, there must have been some air caught within the system cause I jacked up the front of the car and filled the radiator as much as I could. Now it's building pressure like it should. Thanks all for your responses. Now, just keep my fingers crossed and hope this cheapo rad lasts a little while. 
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| Author: | Eric W [ Mon Jul 03, 2006 12:04 pm ] |
| Post subject: | |
If you can get away with a 13lb cap, it'll last a good long time. |
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