Motor Mounts

Any idea on how to tell the difference between the left and right motor mounts for the oddfire 225?

 

The ones that I've seen actually have "left" and "right" written on them. On a little tab on the side, somewhere. If they aren't brand new, you might have to clean off some grease to see it.

My question was - is it right and left if you're sitting in the drivers seat, or if you're standing in front of the Jeep??? Personally, I think all auto parts should use the term "driver" or "passenger" when referring to one side or the other...

 

I hope there is no difference. I recently bought one mount from Krage. I needed the drivers side (left). I was told by Krage that they were the same. The one I received I didn't notice any markings on it. I will look again tonight. I just know that it looks like the one I am replacing.

Left and right is as you are sitting in the vehicle.

 

I don't think there's a dif. in the motor mounts.

 

Rather than bore you guys with the details of my conversation with Anchor Industries, I decided to just provide the dimensions mentioned earlier.

Mount #2382 – 2.15”h x 1.20”w (Right mount)
#2383 – 2.32”h x 1.20”w (Possible left mount)
#2384 – 2.32”h x 1.28”w (Other possible left mount)

The first dimension shown is the vertical distance between the hole on the base or largest plate to the hole on the secondary plate or part that attaches to the frame. The second dimension is the horizontal distance between the same two holes.

The dimensions don't really help much, at least for me. I still wasn't able to tell the difference. It sure would've helped if the manufacturer put some identification on the part itself besides labeling the box.

 

Looking at the dimensions your only looking at 3/16" in heigth difference. Not sure if thats enough to cause trouble. I don't think it would hurt anything.

 

I'm not SURE if this is the reason or not, but the last one I changed was a PAIN IN THE ARSE!!! Like the bolt holes wouldn't like up right. As memory serves, they seems to be off by about 3/16"...

It could've been that I had it on the wrong side. I did eventually get it in right, but it was a real hassle.

FWIW

 

I guess sometimes 3/16" can seem like a mile.

 

In my line of work that would be 10 miles!!!!!!!!!!

 

If you think about it - the bolts are 3/8". So 3/16" is half of the hole = bolt no line up!!!

 

Since you guys are talking motor mounts...

My 68 cj5 needs the mounts replaced. I was planning on having it done (by a real mechanic) but before I do, what is the process to replace them? Where can I purchase the motor mounts? What is the level of difficulty - I am definately a beginner.

Gary

 

It's not a very "difficult" proceedure - in that you just remove one large nut which holds the mount to the frame, and two 3/8" bolts which hold the mount to the block. The tricky part is getting to it... It's rather tight on the drivers side (the side I changed). I'm not 100% sure, but I think the passenger side would be much easier.

Really, if you're good at looking at something and saying to yourself "okay, what to I need to do in order to "thread" this thing out, and "thread" another one back in?" - then you should be okay. It's not rocket science, just knowing where to apply the force, and where to apply finesse.

Oh yeah - you'll need to lift the engine slightly too, with either a hoist, or a floor jack.

 

If that were true, why make two different motor mounts?

As I understand it, the drivetrain is supported at three location, two at the engine and one at the transmission/transfer case. If things don't line up properly, doesn't that put undue stress on the pilot bushing and affect how the clutch engages with the flywheel?

Also, I thought it was interesting comparing a set of new motor mounts from a factory install to a set of new mounts. One was off by more than an inch and the rubber still looked intact. What's going on there?

 

To bring this topic back, I sandblasted the crud off my motor mounts last night, the mounts are very different, the 3/16" height difference that was mentioned above is right on the money, but the hole that goes cross ways in the mount is located about 1/4" farther out than the other mount, if you set them side by side on a good flat surface you can see the difference easily. I will post a picture in the AM so that you can see the difference.

 

Here is the motor mount pic. In this view looking straight down notice where the shaft and head of the bolt are in location to the hole in the bottom where it mounts to the block, there is a difference of about 1/4" or so and then when you stand them up the other way there is a difference of about 3/16". The little tab on the mount on the right, the mounts are stamped right in this area with an L or R. The little rubber tab that is sticking up in the picture also has Left and Right molded into the rubber there.

 

Mcruff - Were those aftermarket mounts or originals from the factory? If the former, where did you get them? I don't think the motor mount question has been fully resolved. Is it important to have the proper left and right mounts installed in their correct position or is it OK to just use one mount for both sides as many have done according to earlier comments? I still lean in the direction that the slight difference between the mounts is important to take into account. Otherwise, why would the factory have made the distinction? It would be nice to finally lay this question to rest.

 

Krage:


Engine Mount, V6-225
Part#: 1369788
Model: All Models
Year: 66-71
$25.95



I am now worried....the mount I ordered from krage to replace my driverside mount. Will it work? Krage indicated that there was no difference.....now I wonder......

 

If you still have the mounts out of the Jeep....could you take some measurements and compare them to Beeser's previous post that gave demensions? I would like to compare the new mount that I have and see if I can determint if I have a Right or a Left. I will measure my mount and compare it to beesers demension and yours if possible.


Thanks

 

After doing a fair amount of research, I'm convinced that there is a physical difference between the left and right mounts as intended by the manufacturer. The question that still remains is, what are the consequences of using mounts that don't conform to the original specs? With as much mechanical talent that frequents this forum I would think this is an easy question to answer.