Question about 1983 Ford Fairmont

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Ford C4 Auto gearbox spits oil

I have just put together a Model A with 302 and C4
It appears that when hot, gearbox oil spits out,
I have reset the sender with new O rings added a bit gue, nice and secure.however heading back home there was a sudden cloud of smoke as the oil hit the exhaust.
Looking underneath appears sender still secure but the breather looks a bit damp with oil around that area.
Is the breather just a cap or is there suppose to be extra..something
Does the gearbox build up pressure inside and then spits out ?
Have I over filled.I don't think so i used the recommended amount?

Any help appreiated
Regards Tom

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  • Ramsaystead Oct 25, 2008

    Thanks mate,

    I meant to mention this has been recon'ed,I also run an after market oil cooler,as with the dipstick (aftermarket) I had poured the recommended amount of fluid into the box.sorta hard to work out on the dipstick the correct level.

    You are right on with a "sweet car" and yes problem happened after a small amount of stick? nothing silly as everything is new or recon'ed.Have only managed a couple of drives around the block (20/30ks) only to have this oil problem with the resulting smoke trail me home? Dam!

  • Anonymous Mar 23, 2014

    when oil breather cap is on builds up pressure and blow oil out of main seal



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It sounds like it could be overfilled, but that will be easy enough to check on the dipstick. Should be checked with the engine idling in neutral. Otherwise, the trans could be overheating, causing the oil to expand to the point that it spits out the breather. Pull the dipstick and check the fluid condition, if it's dark and smells burnt, the trans may be slipping or overheating for some other reason, and it's probably time to get a trans shop involved. You should probably run an auxiliary cooler at the radiator area in the type of application you describe, especially if you're gonna be using the gas pedal fairly heavily! Sounds like a sweet car, lots of fun to be had in something like that.

Posted on Oct 25, 2008


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