Coolent Overflow Tank Bolt Location

[posulli88]

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:

[wiley-moeracing]

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.

[posulli88]

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...

[wiley-moeracing]

unless this is a super restoration, I would install one anyways.

[babywag]

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.

[Curly5759]

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.

[letank]

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

[posulli88]

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.

[wiley-moeracing]

perfect.

[KdkGrizz]

Your installation looks great. I am going to have to go the same route. I see that the overflow tank from BJ's has a place on top for the overflow tube. Is that the only fitting? Is there another on the bottom ? Thanks