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Darn Freeze plug
#11

You ever figure this out?
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#12

RacingJake,
So I see an AR buffer spring housing, but that looks too small to be a .223 case. maybe .308?
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#13

And......I see the wrong style core/freeze plug sitting on top of it! The "proper" plug has deeper side walls, having greater "bore engagement" and more grip.  <shrug>
Placerville, California
(former)  '78 2.3T Courier w/blow-thru Autolite 2bbl carb ~ (current)  '87 2.3T Ranger w/PiMP’d EFI
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#14

good bet if that's a wrong core plug, the others are probably as well
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#15

(07-20-2021, 06:48 AM)Golypon Wrote:  You ever figure this out?

I do know the freeze plug was not knock in like the other ones due to the marks on hole. My WAG is a previous owner had plain water in the cooling system and it froze pushing it out a little many years ago and my WOT in 4th gear going for over 6500 rpm was too much.

(07-20-2021, 10:56 AM)Kuch Wrote:  RacingJake,
So I see an AR buffer spring housing, but that looks too small to be a .223 case. maybe .308?

Close, it's 50 BMG on AR platform.
87 TC 5 speed at 205,000 miles, BoPort Stage 3 Head, 2.1 cam, 50 trim Turbo, Stinger Pimp, 3" exhaust, upper and lower ported manifolds, FMIC, 80lb injectors, 255 pump, 20 psi at 4K, 25 psi at 4.5k. Temp is 93c and IAT is 50c in West Texas Summer. Great freeway flyer on pump 93 gas.
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#16

Oh Damn, going big on that AR. I like it
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