3.5 v8 Dead - options

Hi mate, if at all possible, I would plumb the oil cooler back in. Not sure if the 3.9 oil pump has the holes drilled an tapped into it - I would imagine that's why they left it out. Grab all the old oil lines, fittings and old engine - someone may be able to confirm that the oil pumps may be able to be swapped and the cooler reinstated.

At this time of year, you are not going to miss it, but on a hot day you might.

So, how does it all go now anyway! Hoping it is back to its best.

Catch up soon - Gav

The 3.5 in the 101 may have had a different thread for the oil filter, I don't know when they changed to 3/4 UNF across the board (late 70s?). You should able to use either the oil pump cover off the 3.5 or the actual adaptor and swap them onto the 3.9. Make sure you have the correct gasket on hand before you swap the pump cover, they're a critical thickness.

The 3.9 when fitted in the Rangy has a spacer plate under the filter that the oil cooler pipe work connects to. If yours has the original 101 upside down filter housing fitted you could replace it with the rangy one and fit a remote filter as I have done plumbing in the cooler too. If it has the original 3.9 filter housing with filter pointing down they have probably taken the oil cooler adaptor out to give more diff clearance

Unless the 3.9 is a Serpentine front end (which I'm quite sure it isn't) the 101 filter head will fit straight on, bolt lengths are different so you'll need to use the original bolts for the 101 filter head, but it keeps things pretty standard.

If you've got the filter head off the engine then check the face that goes against the gears for wear, and smooth it flat with some wet and dry on a surface table. Wear on the face of the filter head will cause low oil pressure.

Quote:

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Originally Posted by grey_ghost

Sitec - did you run this engine without an oil cooler?

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Yup! One of the things missing when I received mine was the upturned filter housing and the oil cooler! The original engine came with it but alas no pump housing or oil cooler. My oil temp gauge had also been introduced to the side cutters when the running (but scrap) engine it came with was fitted.... so, yes it ran without an oil cooler. Most V8's do.. I've never owned a 101 with a cooler fitted.