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  #1  
Old October 10th, 2012, 19:22
knever3 knever3 is offline
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Renix pressure bottle coolant pressure tester

I have searched the net and the forum and can't seem to find an adapter to pressure test my system. I have a Matco cooling system pressure tester but it doesn't have the adapter to screw onto the OE pressure bottle. Does anyone have a link to the part I can buy? Thanks!!
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  #2  
Old October 10th, 2012, 21:56
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5-90 5-90 is offline
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Re: Renix pressure bottle coolant pressure tester

I've never seen a tester for the bottle proper - and you'd have to make sure to plug both of the small hose ports.

I do know that an adapter is available to test the cap - but some fabrication would likely be necessary in order to be able to test the bottle.

It may be easier to screw the cap on, plug one hose port, and use the other to apply pressure for the test. That would test the cap & bottle at the same time, but you'd know the assembly could hold pressure (since testing the cap and bottle as separate pieces still doesn't test them as an assembly, you have at least one untested point of potential failure...)
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  #3  
Old October 11th, 2012, 04:33
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cruiser54 cruiser54 is offline
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Re: Renix pressure bottle coolant pressure tester

I just bought one for my tester.

http://www.sjdiscounttools.com/astfz25.html
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  #4  
Old October 11th, 2012, 04:55
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Re: Renix pressure bottle coolant pressure tester

Quote:
Originally Posted by cruiser54 View Post
I just bought one for my tester.

http://www.sjdiscounttools.com/astfz25.html
very nice-- I'd never seen that before. I'm either buying one, or borrowing yours........
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  #5  
Old October 11th, 2012, 06:50
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5-90 5-90 is offline
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Re: Renix pressure bottle coolant pressure tester

Quote:
Originally Posted by cruiser54 View Post
I just bought one for my tester.

http://www.sjdiscounttools.com/astfz25.html
Cewell...

However, I'd still be inclined to pressure-test the cap and tank as an assembly, at some stage.

The cap can test good, threaded onto the adapter.
The tank can test good, with an adapter threaded onto it.

However, it's still entirely possible (unlikely, but possible) that the assembly of that particular tank and that particular cap may not seal properly, even though the individual components test okeh. This could be problematic, and methinks the only way to catch that would be to test the cap and tank as an assembly.

However, that adapter would allow you to either plug and pressurize the tank to test it, or to pressurize the whole system and test it, as with other systems. So, still useful (and bookmarked...)
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  #6  
Old October 13th, 2012, 06:07
knever3 knever3 is offline
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Re: Renix pressure bottle coolant pressure tester

Quote:
Originally Posted by cruiser54 View Post
I just bought one for my tester.

http://www.sjdiscounttools.com/astfz25.html

Awesome!! That's exactly what I was looking for, just didn't know what one that fit. I bought it from my trusty Amazon which I have a long standing account.

http://www.amazon.com/Assenmacher-Sp.../dp/B000XMI1LU

Thanks, now I can leak check my whole system. I know my bottle and cap are good since it ran great before my new motor swap.
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  #7  
Old October 13th, 2012, 21:07
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Ecomike Ecomike is offline
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Re: Renix pressure bottle coolant pressure tester

Ebay has it for $14?

http://motors.shop.ebay.com/i.html?_...or+cap+adaptor
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  #8  
Old October 13th, 2012, 21:28
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Re: Renix pressure bottle coolant pressure tester

Quote:
Originally Posted by knever3 View Post
Awesome!! That's exactly what I was looking for, just didn't know what one that fit. I bought it from my trusty Amazon which I have a long standing account.

http://www.amazon.com/Assenmacher-Sp.../dp/B000XMI1LU

Thanks, now I can leak check my whole system. I know my bottle and cap are good since it ran great before my new motor swap.
5-90 has a good point. I have discovered that all the currently available bottle/cap Renix packages are too weak at the cap and the male threads on top. The cap is also to tall, and the hood presses on it damaging the bottle wall over time. While the cap may pass a test while mounted cold on a metal tester, and the same for the bottle, the two operated at 200 F have a 99% failure history in just a few months!!! The hood presses on the cap, and bottle threads reform at temp with a tapper, and the cap tapers out, stretches until the cap pops off. A worm gear clamp on the cap works, but does not solve the hood crushing the bottle problem, caused by the cap being too tall. The Volvo bottle cap solves both problems!!!

The cure is to use a Volvo bottle cap, it is half the height of the Renix cap, and commonly stocked everywhere.

http://compare.ebay.com/like/1709053...pes&va r=sbar (Stant makes one too, about $5)

Here are two great threads on the problem!

http://www.naxja.net/forum/showthrea...t+b ottle+cap

And here is another mod everyone should use on the bottles!

http://www.naxja.net/forum/showpost....&postcount=135

http://www.naxja.net/forum/showthrea...952147&page=19

I have now made 4 years with the modified China POS Renix bottles using the volvo caps, and the bottom tube mod.
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Quote=8Mud: "Go ahead and put up the best fence you can build, I'll bet on some Mexican with a few dollars of nails and a pile of scrap lumber."
34 MPG , '85 2WD Cherokee Pioneer with custom installed, 64 hp, 2.2 L Nissan SD22 Diesel 5 spd Manual; & 4 Renix XJs, '87 Wagoneer 4.0, 4WD, 89-Cherokee, 4WD, '87 Cherokee 2WD, & '89 Cherokee Pioneer 2WD, all 4dr. #2091

Last edited by Ecomike; October 13th, 2012 at 21:33.
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  #9  
Old October 14th, 2012, 05:10
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Re: Renix pressure bottle coolant pressure tester

Mike, I have had the same results using chinese bottle and Volvo cap.
Great deal on the tester adapter at $14 on ebay. That's actually where I got mine but paid more for it at that time.
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