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-   -   taking my engine out, cant get oil cooler lines off (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/taking-my-engine-out-cant-get-oil-cooler-lines-off-256014/)

jacobcartmill 12-30-03 09:38 PM

taking my engine out, cant get oil cooler lines off
 
how do you get the oil cooler lines off of the engine? this is the last thing keeping the engine from getting lifted out... i attached a pic

Juan 12-30-03 09:45 PM

You need two wrenches on the front line. One holds the "nut" closest to the engine and the other wrench loosens the "nut" on the oil cooler line. Just put a wrench on each one and squeeze them together with your hands. I dont know the size off the top of my head but you need some big suckers. The other line on the side of the engine is a piece of cake. I think the size is a 23mm.

jacobcartmill 12-30-03 09:55 PM

https://www.rx7club.com/forum/attach...postid=2495815

jacobcartmill 12-30-03 09:57 PM


Originally posted by wan
You need two wrenches on the front line. One holds the "nut" closest to the engine and the other wrench loosens the "nut" on the oil cooler line. Just put a wrench on each one and squeeze them together with your hands. I dont know the size off the top of my head but you need some big suckers. The other line on the side of the engine is a piece of cake. I think the size is a 23mm.


are you sure the bigger one (the one farther from the engine) turns? i just tried to turn mine and it made a little kink in the metal hose...

RotaryResurrection 12-30-03 10:22 PM

That's because you let them both turn. The small one has to be held in place while the bigger one gets loosened. It is a compression fitting just like in a plumbing situation. You have to hold one, loosen the other. IT is hard to do...I usually get 2 breaker bars, one for each wrench. Set the smaller bolt up so that it's bar rests against the radiator support, and then have the larger one sticking farther up, and push down on that, being sure the smaller one isn't moving.

Bambam7 12-30-03 10:59 PM

Mine were completely frozen, I know how frustrating that is.
I couldn't get the fitttings to turn independantly at all, so I had no other choice other than hacksawing the tube.
It was easy enough to solder it back together with a propane torch, using a 1/2" of copper pipe to slide over the ends like a coupling. Then just painted it silver.(Note- make sure you really scuff up the origional tube, or it won't solder.

Mr. Gadget 12-30-03 11:13 PM

Just use two wrenches. sometimes it helps to try and tighten like a 32nd of a turn to bust it loose. If its easier, just remove the cooler and remove the hoses out of the car where its easier to work on.

Slacker7 12-30-03 11:22 PM

Err.. The smaller fitting is a 21mm nut.. All you need to do is to "break" the fitting loose. once that is done you can even use your fingers

DCRotor 12-30-03 11:22 PM

use liquid wrench on the nut it helps out a lot.

jacobcartmill 12-31-03 12:41 AM

the two nuts were totally frozen, we just disconnected the banjo bolt off of the oil cooler and ran the hose up through.
so all is well, but the metal part of the hose still has a big kink in it so i'm gonna have to buy another one. anyone have one? :)

stevensimon 12-31-03 02:10 AM

thats good that you got it off of the cooler, for me it was totally opposite. the banjo bolt was frozen and the block one was finger tight.






-GO ROTARY-

Madrx7racer 12-31-03 03:39 AM

i'm pulling my engine out with them attached....

Dan H 01-12-04 08:50 PM

Sorry to bring this back up from the dead but does anyone know what size exactly is the outer nut for the oil cooler line on the front cover? I bought a 23mm by accident and the largest Sears had was a 24mm in stock so I need to know what standard size will fit reasonably well.

The oil cooler lines is all that is holding me back on my engine removal!


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