Motor mount interference

Kunker

Kunker

Administrator
Club Member
The motor mount adapter from AA apparently puts the engine side mount on the passenger side right over a bolt boss on the block:

IMG_20160905_1004505.jpg
Offending boss is marked in white

IMG_20160905_1005336.jpg
Where it contacts the motor mount

The question is - cut the boss off the block, or cut the motor mount? I'm leaning towards cutting the block as I don't want to leave the bottom of the motor mount unsupported, but I'm open to suggestions.
 
aweber

aweber

This thread is :rainbow:
Staff member
Club Member
Looking at those pics, I would clearance the mount, not the block. I think it will be fine!
 
Kunker

Kunker

Administrator
Club Member
Paranoid about the loss of strength cutting out the bend at the bottom, and same for cutting the webbing on the block.

Mount is probably better, though, as I can easily replace that vs a new block if something went horribly wrong.
 
Baja

Baja

Well-known member
Im with Adrian as well. Also that area is below the bolts on the mount so I do not think it will be taking that much load.
 
Buster

Buster

Well-known member
Club Member
Mod the mount. when you clearance for the boss on the block, ensure the shape is smooth and nicely blended. This will prevent/minimize any stress areas.
 
J

junkpile

Well-known member
Instead of just clearancing around that one boss, it looks like you could cut off an 1" straight across the bottom of that mount without affecting it's strength. It would also look cleaner and allow access to those threaded bosses should the need arise for an accessory mount.
2¢
 
Kunker

Kunker

Administrator
Club Member
junkpile said:
Instead of just clearancing around that one boss, it looks like you could cut off an 1" straight across the bottom of that mount without affecting it's strength. It would also look cleaner and allow access to those threaded bosses should the need arise for an accessory mount.
2¢
Click to expand...

What you can't see is how the mount is actually bent/contoured - cutting 1" off the bottom would have been a large change in shape and strength.
 
J

junkpile

Well-known member
Maybe your right. Of course an inch was just a guess, possibly 3/4" or 5/8" is all that's needed, "irregardlessly" (read w/Bostonian accent) I'm pretty sure whatever material is left either side of the clearance notch you cut out will be superfluous.
 
Last edited:
Kunker

Kunker

Administrator
Club Member
rikker001 said:
Could you just drill it out and maybe put a bolt? just a thought. I could be right out in left field.
Click to expand...

Already cut the mount. The problem is the bottom of the mount that bolts to the motor (in black) hits the boss on the block before bolting on flat. It actually hit the webbing to the boss as well, so the hole ended up a bit bigger than originally intended.
 
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