C4 trouble. Hope I didn’t screw the pooch on this one.

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Rxlawson
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C4 trouble. Hope I didn’t screw the pooch on this one.

Post #1 by Rxlawson » Mon Jul 09, 2018 5:54 pm

I cross threaded the transmission cooling line to my c4 transmission. The line looks fine. However the footing that fits into the transmission that the line fits into as well is toast. I don’t really want to have to find a way to rethread and blah blah blah. I’d like to just buy a new fitting.

In lies the trouble. Anyone know the threads and size of this piece? I went to Lowe’s and autozone and couldn’t find anything that matches. The threads look finer than anything being sold.

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chad
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cut off very close to old flair, slide on new, flair again & screw together carefully

Post #2 by chad » Mon Jul 09, 2018 6:34 pm

I thought it wuz called a 'course, pipe thread".
U may wanna chase the thread on the prt you are NOT replacing
so it doesn't happen to the new fiting U put on ur new flair...
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

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Rxlawson
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Re: C4 trouble. Hope I didn’t screw the pooch on this one.

Post #3 by Rxlawson » Tue Jul 10, 2018 12:09 am

The piece on the line is fine, threads a little flat but still useable. It’s the piece that acts as a connector between the c4 and the cooling line.
The male part that goes into the c4 is very fine threads, but the female part that the line screws into is course, yes. Even though I would like to chase the threads on the line piece like you suggested. I haven’t a clue on the sizes

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chad
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C4 side fitting thread count/pitch on collant line

Post #4 by chad » Tue Jul 10, 2018 12:23 am

follow up w/ford, a local trans shop, use a gauge, or tell an auto prts store U want a fitting for it.
One of these sources is sure to wrk.
Mine is not @ the house (15 mi away, sorry. luv 2 know tho).

Any 1 here know, guys?

("...is very fine threads, but the female part that the line screws into is course...
doesn't make sense 2 me, they should match)
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

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Rxlawson
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Re: C4 trouble. Hope I didn’t screw the pooch on this one.

Post #5 by Rxlawson » Tue Jul 10, 2018 12:38 am

I don’t know if I explained it properly. Its possible the PO replaces the original lines and bought adapters. I’m not sure.
But what I tried to say was the cooling line has a male end, with what looks like course threads, screws into a piece that’s about an inch or so long, then that piece has a male end on it that is much smaller and that part screws into the transmission, and it has very fine threads.
After doing some searches I believe that piece is
1/8”-27 npsc. So maybe I can take the whole line in and see what threads they are.
I took that little piece I need into autozone and they were no help.
Only other option is Napa .

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chad
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brass fitting - opposite ends different

Post #6 by chad » Tue Jul 10, 2018 12:50 am

Oh, jeesh, yes it's just a lill adapter, I get it now.
A hrdware store will have.
Yep NAPA is better'n AZ or other big bx stores
(they even got ford tractor prts, hey, hey, hey!).
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

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Rxlawson
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Re: C4 trouble. Hope I didn’t screw the pooch on this one.

Post #7 by Rxlawson » Wed Jul 11, 2018 6:16 pm

Went to a transmission shop and he had the piece I needed just lying around. Charged me a whole dollar for it! Yeah!
Got it on there and got it running today!

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Econoline
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Re: C4 trouble. Hope I didn’t screw the pooch on this one.

Post #8 by Econoline » Wed Jul 11, 2018 10:00 pm

Nice, that's awesome. Most people that know what a falcon six is are happy to help ime. :beer:
It ain't gonna fix itself

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chad
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cross threaded a C4 coolant adapter

Post #9 by chad » Wed Jul 11, 2018 11:25 pm

Rxlawson wrote:Went to a transmission shop and he had the piece I needed just lying around. Charged me a whole dollar for it! Yeah!
Got it on there and got it running today!

Where R U located?
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

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Rxlawson
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Re: C4 trouble. Hope I didn’t screw the pooch on this one.

Post #10 by Rxlawson » Sun Jul 22, 2018 4:36 pm

Lawrenceburg Indiana 47025

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