Upper Thermostat Housing.
#1
Posted 29 March 2021 - 11:34 AM
#2
Posted 29 March 2021 - 01:20 PM
I'd cut it down a bit and bore the inner a touch for a more even surface, then make a new sleeve on the lathe that presses inside and has a step to match the outside. The inner diameter would end up slightly smaller but that won't make much difference and you may need a little epoxy to ensure its leak-free if the pitting is really bad. Would be hard to tell the difference especially once you put a hose on it.
#3
Posted 29 March 2021 - 03:09 PM
Edited by Indy Orange, 29 March 2021 - 03:10 PM.
#4
Posted 29 March 2021 - 03:37 PM
early Holden nut
#5
Posted 29 March 2021 - 04:06 PM
#6
Posted 29 March 2021 - 04:27 PM
#7
Posted 29 March 2021 - 07:17 PM
Always been pot metal. EH were different in that the neck points up to suit the old style radiator. HD or HR on basically same radiator through to HZ 6 cylinder I reckon. They are a consumable item.
early Holden nut
It would be nice though if a Holden Branded Part housing could be saved by a stainless steel sleeve.
In Brisbane try BHSS Capalaba, one can only ask. Understandably though, will the parent metal hold up to the task?
Attached Files
#8
Posted 29 March 2021 - 08:24 PM
Guy I know built a crucible in his shed and managed to cast some alloy propulsion blades for one of those scuba things you hold with the headlight and get pulled along. He used old hard drives as the source metal. If you started reproducing the thermo housings I wonder if the copyright lawyers would come after you.
early Holden nut
#9
Posted 29 March 2021 - 08:27 PM
early Holden nut
#11
Posted 29 March 2021 - 09:12 PM
#12
Posted 29 March 2021 - 09:16 PM
#13
Posted 30 March 2021 - 04:34 AM
Depends whether you have some material and machinery on hand or not. If it were me I'd use some free machining aluminium rather than stainless.
#15
Posted 30 March 2021 - 12:16 PM
Junk.
Haha, it looked better than what the OP had...
Hang em all on the wall.
#16
Posted 30 March 2021 - 12:20 PM
That ebay link shows similar items other people brought, and shows the Rare Spares repro thermo housings. A good original one that isn't corroded is always preferred but noticed in the parts list and comments it has an o-ring rather than a gasket. Interesting incorporating a design change, funny thing is the Rare Spares site makes no mention of an o-ring. I don't think Holden did a design change to the late blue 6's with an o-ring, but I could be wrong. This ebay seller it says sold 61 of them, so would have to assume they seal okay.
Might be a good alternative if you can't fix yours or find a good original one, that doesn't cost a gazillion dollars.
https://www.ebay.com...675.c101224.m-1
https://www.rarespar...202-lc-lh-6-cyl
#17
Posted 30 March 2021 - 02:03 PM
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#18
Posted 30 March 2021 - 04:30 PM
#19
Posted 30 March 2021 - 07:48 PM
Surely wouldn't last?
early Holden nut
#20
Posted 30 March 2021 - 07:57 PM
#21
Posted 30 March 2021 - 08:06 PM
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#22
Posted 30 March 2021 - 08:16 PM
#23
Posted 07 May 2022 - 12:25 PM
I was thinking maybe, this may restrict coolant flow a little, as the internal opening had a lip buildup of casting metal, so i gave it a slight port job .
Even to feel along the inside of inlet tube, it has a slight tapered feel to it. Not that its a big deal, just merely an observation, i thought worth sharing.
Admittedly this is not a branded/part numbered top cover.(cheap chinese junk)
Attached Files
#24
Posted 07 May 2022 - 05:26 PM
Did you get flow bench results?
#25
Posted 07 May 2022 - 09:42 PM
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