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Old 06-16-2019, 12:07 PM
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posulli88 posulli88 is offline
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Join Date: Dec 18, 2016
Location: Weymouth, MA
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Coolent Overflow Tank Bolt Location

For some reason my front radiator support does not have the punch out for the bolt on the coolant over flow tank and I want to install the BJ's offroad Aluminum tank I have for it.

How would you guys go about making that punch out? I was thinking small dremel with a cut off wheel for the flat parts then a bunch of tiny holes to create the half circle shape. Then go back in a file everything smooth. Thoughts? Can anyone give me dimensions so I can locate this in the correct space?


My front Radiator support without the punch out:


What I am trying to recreate:

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  #2  
Old 06-16-2019, 01:17 PM
wiley-moeracing wiley-moeracing is offline
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some never had the hole, cause they either did not have an overflow bottle or had a bag style on the inner fender panel, just cut it out.
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Old 06-16-2019, 02:26 PM
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posulli88 posulli88 is offline
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Thanks Wiley. Man for some reason I thought these all had them. I just checked the TSM and it talks about the tube just dumping on thew road. Pretty funny. Might not install the tank now...
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Old 06-16-2019, 08:39 PM
wiley-moeracing wiley-moeracing is offline
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unless this is a super restoration, I would install one anyways.
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Old 06-16-2019, 08:43 PM
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babywag babywag is offline
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These systems will pull/push coolant from/into overflow with heat/cool cycles.
A radiator that is overfilled will puke out excess.
Same with a proper overflow tank they will puke out if overfilled and suck overflow dry if underfilled.
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'88 GW (aka Babywag) and '90 GW (aka JUNKbucket) both fuel injected
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Old 06-17-2019, 12:25 AM
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Curly5759 Curly5759 is offline
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My77 Chero didn't have one. I bought a used tank from a member here, eyeballed the location of the tab and drilled a hole. Used a 90* aluminum bracket from the local Big box hardware store, attached bracket to sheet metal, attached tank to bracket. Not pretty but it works.
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Old 06-17-2019, 10:44 PM
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letank letank is offline
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the 74 did not have a tank as Tony said, it would puke coolant in the summer at every stop... got a cheapo at the car parts store , it comes with it own bracket


a good example on dabay: Universal Coolant bottle Recovery reservoir Radiator overflow bottle small size
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74 wag, 349Kmiles on original ticker/trany, except for the rust. Will it make it to the next get together without a rebuilt? Status: needs a new body.
85 Gwag, 226 Kmiles. $250 FSJ test lab since 02, that refuses to give up but still leaks.

See Ouray 2013, Engine bits and Fuel and brake lines, and Body work
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Old 06-21-2019, 01:21 PM
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posulli88 posulli88 is offline
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Thanks for the help everyone. I guess I just needed a little nudge to cut haha. Here is what I ended up with. think it looks good. just need to get a hose nipple to connect the hose.



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  #9  
Old 06-21-2019, 01:24 PM
wiley-moeracing wiley-moeracing is offline
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perfect.
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