59ab oil pressure relief valve leak

[31blackcoupe]

Originally Posted by KGS

Sometimes you need to plug the hole where the fuel pump rod was removed. If there is high oil pressure blowing out through that hole, it may be throwing enough oil to get up to the vent at the front of the valve chamber. Ken

great idea Ken, never thought of that. it was pushing oil out when I had the pump rod in however. I removed it to let the motor breath better.
thanks for the reply

[31blackcoupe]

Originally Posted by JSeery

On a 59a, the bushing for the fuel pump rod should not have a hole in it. But maybe it has been changed out to a later model one. I plug mine anyway.

sounds like a great idea J. can I ask how is that plug is held in there? did you thread and tap? hopefully there's an easier way..
thanks for the reply

[rotorwrench]

The vent goes right through the oil pan flange. The pan gasket sometimes fails on the inside of the crank case where it seals that vent port on the pan rail. You won't see the damage to the gasket unless you remove the oil pan.

[JSeery]

Originally Posted by 31blackcoupe

sounds like a great idea J. can I ask how is that plug is held in there? did you thread and tap? hopefully there's an easier way..
thanks for the reply

Press fit, there is no pressure on it. I added a hole for a safety wire, but don't think it is really required. This type of plug is required on 8ba engines, but shouldn't be on a 59a. But that is going to depend on the bushing installed in the 59a or if the bushing is missing. If it is missing there would be a major oil press drop to the bearings.

[31blackcoupe]

Originally Posted by JSeery

Press fit, there is no pressure on it. I added a hole for a safety wire, but don't think it is really required. This type of plug is required on 8ba engines, but shouldn't be on a 59a. But that is going to depend on the bushing installed in the 59a or if the bushing is missing. If it is missing there would be a major oil press drop to the bearings.

awesome, thanks again J. is this plug available for an 8ba? like from VP?

[31blackcoupe]

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Originally Posted by rotorwrench

The vent goes right through the oil pan flange. The pan gasket sometimes fails on the inside of the crank case where it seals that vent port on the pan rail. You won't see the damage to the gasket unless you remove the oil pan.

gonna try a few more things before I take off the pan, but thank you for explaining that so well. I would have never guessed or known.
thanks for the replies Rotor

[Ken/Alabama]

What Rotorwrench said! Go back and read poost #9

[JSeery]

Originally Posted by 31blackcoupe

awesome, thanks again J. is this plug available for an 8ba? like from VP?

I'd have to check, I make my own. Reda or Flathead Jacks might.

[36/40 Ford]

was the oil leak problem ever solved?