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Many
of our readers may be switching from a 4 cylinder to the DOHC,
which would either necessitate purchasing a front V-6 mount from
the salvage yard or manufacturing a new one from scratch. Dave
Ellis AKA ltlfrari has been so kind as to provide the specs as
well as a detailed write-up and pictures on how to manufacture
the mount. The following is his write-up in full.
This is my solution
to mounting my 95 3.4 DOHC onto an 85 cradle with a 5 speed
Isuzu transmission.
I replaced the standard tranny and engine mounts with West Coast
Fiero poly mounts. The tranny mounts are simple bolt up
replacements for the existing mounts so I will not go into
detail of those here.
As I was replacing a 4 cylinder engine with the 3.4 I did not
have an existing engine mounting plate that I could use. I had
read on Pennock's that an 88 V6 mount would work but when I
looked at how the end of the engine aligns above the (WCF)
engine mount I could not see how the bracket would fit in my
situation. This is not to say there is anything wrong with the
WCF mount just that so far as I can see a standard engine
mounting plate would not work.
Figure 1 shows the basic engine mounting bracket that I had made
from 1/4 inch steel. I made some slight changes to the actual
bracket from the drawing. In particular I decided that the
cutout at the lower left of the bracket where the 'foot' goes
made that corner of the bracket too narrow so the cutout is not
only 2 1/4 inches long and I had the guy who made my bracket
notch the foot to match so that they interlock together.
The foot is simply a piece of 1/4 plate steel 4 1/4" x 2 1/2".
Click picture for a larger version
Figure 2 shows the completed mount. To drill the holes in the
foot I bolted the mount to the engine and installed the WCF
mount and marked where I wanted the bolt holes to go,
disassembled it and drilled the holes. I used the 3/8" bolts
that came with the WCF mounts.
Figure 3 shows the modifed WCF engine mount. Because the WCF
mount already had holes drilled in it that did not align with
the new holes in my bracket I had the existing holes welded up
and ground flat. Then I bolted it all up again, marked where the
holes in the foot matched the WCF bracket, removed everything
and drilled new holes in the WCF part.
Figure 4 and Figure 5 show the completed engine bracket in
place.
Author: Dave Ellis AKA ltlfrari
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