[DeTomaso] Engine Mounts

JDeRyke at aol.com JDeRyke at aol.com
Tue Dec 18 14:38:01 EST 2012


Freddy, any of the vendor's motormount isolaters will work. Do NOT use the 
polyurethane replacements you sometimes find: they MELT from exhaust heat, 
flow down around the metal parts, then set up hard again. You will need to 
chip them apart with saws, chisels and hammers to disassemble the mounts. And 
on the left side, you need to disassemble the two-piece cast aluminum mounts 
to remove them around the shift-shaft rod. This is NOT a fun job in the 
restrictive space available! Polyurethane is a fine material but not in this 
application.

As a temporary 'fix', if your rubbers are not disintegrating but compressed 
on one side, jack up the engine a little and rotate the rubbers 180 
degrees. What happens is, heat and weight of the engine collapses the rubber more 
on the outboard side more than the inboard. Thia then puts a strain on the 
upper mount bolts up into the block, which sometimes break from the strain. 
Rotating the rubbers puts the full-depth rubber under more load and the 
isolaters will quickly level out. This can last as much as a year until you really 
will need to replace them. If you have broken bolts, some owners rethread 
them to the next size larger, but thats really not necessary if the rubbers 
are in decent shape and rotated occasionally. Good luck- J Deryke


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