Need help tightening transmission lines to 700r4
 

Bought an 89 Formula and was told the trans was replaced. Found it was leaking trans fluid really bad and put the car up and founds the cooler lines are soaked. Assuming there not tight eough I tried to tightness them but can't get a grip on them and there's very little room.
is the trick till tightening these ?
useing 1/2" wrench

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Re: Need help tightening transmission lines to 700r4
 

They make flex head ratcheting line wrenches. Makes it MUCH easier.

Re: Need help tightening transmission lines to 700r4
 

U may have to remove the trans dipstick/filler tube & plug that oriface then use the tubing wrenches to tighten the lines.

Re: Need help tightening transmission lines to 700r4
 

I have also cut the lines with a tubing cutter in an easy to access spot to R&R a trans, then reattach using a compression union. That way you can get at those fittings BEFORE you stick it back up in the car.

Re: Need help tightening transmission lines to 700r4
 

Line wrench crows foot.

Re: Need help tightening transmission lines to 700r4
 

I have a leak of tranny fluid. Started a couple months ago. When I get my T/A back today, I will attempt to diagnose source. I am guessing that it is the o-ring on the tranny fluid filler tube at the base. Had that problem with the TH350 in my 1972 Buick GS (sold) many years ago.

Re: Need help tightening transmission lines to 700r4
 

Common drip areas are filler tube, shift shaft seal, speedo cable seal, and pan gasket.....ESPECIALLY if it's an old cork gasket, they rot. Then after that is rear output seal, front seal, and pump gasket/o'ring.