Leak between motor and trans at a mounting bolt

[67dart_drop_top]

Anyone ever have a leak at a tranny bolt near the oil filter? I just dropped the engine and then mated it to the transmission. My guess: I might have torqued the left side down too tight before getting the right. Sound possible? Anything else?

Also, I had thes parts left over. The top two nuts go to the exhaust. I accidentally used regular nuts. I believe the large lock washers go to the motor mounts, correct? Should the two small lock washers go to the starter?

I had about a hundred small parts and fasteners labeled, but something happened to mess up the system. I feel fortunate that it was not worse.

 

[67dart_drop_top]

Forgot the pic.

 

[GeorgeH]

Look at the oil filter adapter, rear of valve cover, rear of intake, oil sender. Oil leaks can migrate and not always come from where they seem.

 

[elvaliant66]

Anyone ever have a leak at a tranny bolt near the oil filter? I just dropped the engine and then mated it to the transmission. My guess: I might have torqued the left side down too tight before getting the right. Sound possible? Anything else?

Also, I had thes parts left over. The top two nuts go to the exhaust. I accidentally used regular nuts. I believe the large lock washers go to the motor mounts, correct? Should the two small lock washers go to the starter?

I had about a hundred small parts and fasteners labeled, but something happened to mess up the system. I feel fortunate that it was not worse.

U may have a leaky freeze plug in the back of the block. What color is the fluid that's leaking?

 

[67dart_drop_top]

Will do. I just put in a new oil sender unit, and I will recheck my valve covers and everything else you mentioned. Thanks.

 

[GeorgeH]

The two top nuts look like suspension castle nuts, tie rods, ball joints.

 

[67dart_drop_top]

F

 

[67dart_drop_top]

Just out of curiosity, should I have used gasket sealer on the oil sending unit?

 

[GeorgeH]

Just out of curiosity, should I have used gasket sealer on the oil sending unit?

I usually use teflon thread sealant either tape or liquid.

 

[67dart_drop_top]

Oh crap. I totally forgot about the steering nuts. Dang it. Man, this post might have saved a life!,,

 

[GeorgeH]

Oh crap. I totally forgot about the steering nuts. Dang it. Man, this post might have saved a life!,,

damn right. That's why I figured I'd mention it. And make sure to put the cotter pins in. lol

 

[67dart_drop_top]

Will can do. But I would not have thought the tape would hold up to the heat.

 

[GeorgeH]

Will can do. But I would not have thought the tape would hold up to the heat.

I've never had a problem.

 

[dirty white boy]

Will can do. But I would not have thought the tape would hold up to the heat.

its teflon its made for heat! few oil plugs in back of block could be leaking from to,..rear seal, rear oil pan gasket to

 

[GeorgeH]

its teflon its made for heat!

True, I have some teflon coated pans. Never a problem unless I'm trying to chisel through the wife's cookin'.

 

[dirty white boy]

True, I have some teflon coated pans. Never a problem unless I'm trying to chisel through the wife's cookin'.

ran her oft years ago,..my cookin had the teflon burnt oft the pan a month or 2 later...lol

 

[69_340_GTS]

Teflon tape has no place on automobiles, as it can/will shred when eventually disassembled, and if the threads of that junk get into the bearings or oil pump you'll have an even bigger problem. Use the liquid teflon pipe dope on the sender.

 

[dirty white boy]

Teflon tape has no place on automobiles, as it can/will shred when eventually disassembled, and if the threads of that junk get into the bearings or oil pump you'll have an even bigger problem. Use the liquid teflon pipe dope on the sender.

why you sposed to properly clean stuff when ya take it apart,...tape worked fine for decades before the paste was even thought off,..but i agree the paste is lot easyer and works better,..ant gotta remember to wrap it right way so it wont unwound trying to start threads!! way threads cut the tape and fill the threads was a big bonus on truck air systems to keep all them brass air line fittings from leaking threw the threads, was real high tech stuff 50 years ago,..but we have evolved...lol

 

[RedFish]

All of the aftermarket replacement senders I've purchased recently had a red color sealant painted on the threads right outa the box. Nothing more req'd.
Plus the leak was from the sender construction/assembly and not the threads.

 

[67dart_drop_top]

I think I remember the red stuff, now that you mention it. But it looks like that is where the leak is originating. It is tight, so dang if I know??? Did not stay long looking at it, so I will have to get back to it.

 

[rustycowll69]

I had a 79 300 w/360 I bought years, ago and it had an oil pressure problem. The first thing I did, was pull the sender. Somebody had wrapped the threads wrong w/Teflon tape, and a piece of tape was covering the inlet passage in the bottom of the fitting end like a check valve.
If you are determined to use Teflon tape, I suggest wrapping the threads in the correct direction, AND holding your first tape wrap back a thread or two from the fitting end.

 

[67dart_drop_top]

Thanks, but there was some red goop on the end, and it sealed fine. It was the distributor. When I adjusted the timing I did not tighten it down. And since I had pulled it out, it was not fully seated. Luckily , the shaft did not slip up and pop out.

I know about making sure to turn the tape in the right direction, but I never heard about leaving a bare thread. I will start doing that.