AOD question(sealing cooler lines)
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From: Waleska, GA
AOD question(sealing cooler lines)
The truck is ready to drive, BUT I have substantial dripping coming from the transmission cooler lines where they connect to the transmission. I thought these were compression fittings (like brake hard lines) but they aren't. They basically screw into the side of the transmission. From what I can tell, it looks like they were sealed with Teflon tape. Does this sound right? Is there supposed to be O-rings too? Or, just the Teflon tape? I put on both, but the upper one is still leaking (maybe more tape?). The tranny supposedly came out of an 87 T-bird. I'm about to hit it with Hylomar HPV (my favorite sealant). Anybody have any thoughts or suggestions?
Hotshot
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From: Burbank, WA
You might check with a local transmission shop. I'm sure they wouldn't seal with teflon tape. That's not typical. On older trans, like C4 and C6, they have a brass fitting that screws into the trans and the lines connect to that. I'm sure there's an easy answer. And I'd almost put money on it that it's not tape.
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From: Waleska, GA
52 Merc, you're correct. The solution isn't tape. The solution turns out to be Dorman 800-609 (at O'Riely's) and possibly Napa part # 730-4956. Apparently the line is a "quick-disconnect" style that has an internal o-ring that is prone to deterioration. Thanks for reading! I guess I need to Google sooner rather than later the next time. Maybe somebody else will benefit form the knowledge.
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From: Waleska, GA
Yep, still hammering the bugs. It's up on the lift, so all I've been able to do is watch the "wheels go round-n-round" and leave a red puddle. That throttle valve cable is starting to worry me too.
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fittings
convert to 1/4 pipe thread i had to do that on my aod the treads are 18tpi 1/4 pipe is 18tpi but tapered make sure that you don't tap the hole too deep then you can run 1/4 [ipe to inverted flare for lines and no leaks
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From: Waleska, GA
I may have to, but I bought the one Dorman connector and it fixed the top leak. I had to order the second one. I'll install it tomorrow. Hopefully, that will be the end of the leaks.
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Logistics Pro
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From: Pekin, IL
I will have to check mine too. I was thinkin it has typical threaded ends but i'm not real sure.
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From: Waleska, GA
If you don't look closely, mine look just like threaded/flared lines instead of quick-disconnects.
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From: Waleska, GA
The other line was also a quick disconnect (as it I assumed it was since the first one was). The new connector seems to be working well.
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From: Pekin, IL
I was tempted to tear it down and rebuild it before the install as it was a junk-yard tranny. But, the last tranny I rebuilt lasted about 15 miles, so I thought maybe I'd better go with the saying "if it's not broken, don't fix it."
The other line was also a quick disconnect (as it I assumed it was since the first one was). The new connector seems to be working well.
The other line was also a quick disconnect (as it I assumed it was since the first one was). The new connector seems to be working well.
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