4.0L OHV oil pan won't fit

[jcscmng]

Replacing a 4.0L OHV from a 96 Ranger into my 89 Bronco II 4x4. This is replacing a 4.0L OHV that has a two piece oil pan from an Explorer, year unknown as I did not do the original conversion. My mechanic says the frame cross member is in the way for the motor to drop down onto the motor mounts. The 96 motor has a one piece oil pan and the deep well is forward. Can this be swapped with a one piece pan with the deep well towards the rear of the motor (oil pick up swapped too)? Seems to me like this would be easier than cutting the stock crossmember and reengineering a new one.

 

[gaz]

@jcscmng ,

Let me know if I understand you correctly,

You drive an 89 BII with an unknown year Explorer's 4.0l OHV using the SOHC 4.0L two piece oil pan and are replacing it with a 96 Ranger's 4.0l OHV with the stock single piece oil pan?

 

[jcscmng]

I don’t think it’s a pan from a SOHC 4.0L. The main bearing studs come through the cast aluminum pan and there is a small plate that is removable. Never have seen such a setup.

 

[gaz]

SOHC viewed from top.

 

[gaz]

Viewed from bottom.

 

[gaz]

Lower cover, viewed from top.

 

[gaz]

Lower cover viewed from bottom.

 

[snoranger]

I don’t think it’s a pan from a SOHC 4.0L. The main bearing studs come through the cast aluminum pan and there is a small plate that is removable. Never have seen such a setup.

You just described the SOHC oil pan.

 

[jcscmng]

First of all, big thanks for the id of the oil pan. So, maybe the block on the blown motor was a SOHC block? My mechanic says he would not be able to use such an oil pan on the 96 block (replacement motor) because there would be two holes that would be open because the bearing caps on the 96 block are common bolt heads. I’ve seen it suggested that the SOHC oil pan be swapped in such an application. How is the issue of the two exposed holes dealt with? My mechanic says the long studs are pressed in.

 

[jcscmng]

I really don’t understand why I am having this problem. I put an early 90’s 4.0L OHV into a 84 BII (from an Explorer) in that BII without any fitment challenges (2.8L original engine). The 96 4.0L out of a Ranger with a stock oil pan lacks roughly 2-21/2in of clearance on the bottom. Are there different height motor mounts during the years? I would love to use the SOCH pan but how to solve the problem of the rear two holes in the pan that the studs from the rear main bearing come up through? Are these long studs only found on the 4.0L SOHC engine? My mechanic believes these long studs are pressed in and is unwilling to mess with them. Please help if you can.

 

[jcscmng]

CORRECTION. The long studs holes are for the main bearing at the FRONT of the oil pan.