TR4/4A TR4 alternator install

[Geo Hahn]

Though you asked Randall, I will offer what I did...

My TR4's rubber mounts seemed fine yet clearance between the fan hub and that cross piece was too tight to get a belt thru w/o loosening a mount and jacking up the engine a bit.

I made some spacers out of big fender washers, slotted them to the washer hole so they could be slipped in between the metal & rubber of the mounts.

I also shimmed the radiator a like amount so the top hose would still line up. If you don't do this I would be concerned about a strain on that hose or the top of the radiator.

All total, raised things about 3/16" and all seems fine.

As for moving the engine back -- dunno, seems more practical to move the radiaotr forward if more forward clearance is needed (though even though things look tight between the fan & the rad a belt can sorta be worked around and the fan moved at the same time to get it past that -- and skin some knuckles too).

 

[TR3driver]

The factory actually installed shims on the TR3, so I don't see why they would be a problem on the TR4. Changing the mounts might be harder on a '4 though, since they have studs on both sides. On a TR3 it's fairly easy to jack the engine up far enough to change the mounts, one at a time. The only thing that gets stressed is the upper radiator hose; if I do it again I'm going to remove the hose during the process. I'm still not certain if that was the reason why, but mine failed just a few weeks later. It could also have been damaged by the soft motor mounts though, the engine was apparently leaning over quite a bit under hard acceleration in 1st gear.