Junk86
Poster
Posts: 69
Reg: 03-15-19
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03-06-23 07:36 AM - Post#2855394
Can anyone tell me how they replaced motor mounts and the tools they used to remove and install on a 2.8L V6 Engine.
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Tony1963
Frequent Contributor
Posts: 2238
Loc: Orlando Florida
Reg: 07-09-18
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03-08-23 04:52 AM - Post#2855497
In response to Junk86
When I had the dealership, we had an older well-cared for Blazer with that engine. The engine mounts unbolted from the frame and engine just like any engine of that era.
https://www.rockauto.com/en/moreinfo.php?pk=441059...
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Junk86
Poster
Posts: 69
Reg: 03-15-19
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03-09-23 06:11 PM - Post#2855581
In response to Tony1963
I was under the impression that those 3 bolts had nuts that were not attached to the frame and were the kind that were not welded to the frame like cars in the 60's to 70's were. Someone has posted a video that says you must lower the lower arm and remove the coil spring to gain access to those nuts. So, who is right here? I don't want to go to all that trouble to replace the mounts The service/repair manual makes no mention of doing all that.Personally,I can't believe GM would have done that in the first place. So, are those nuts welded to the frame or not? Does someone out there know the answer to that question. 2.8L V6. If they are welded that really makes a big defference.
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Tony1963
Frequent Contributor
Posts: 2238
Loc: Orlando Florida
Reg: 07-09-18
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03-10-23 12:40 PM - Post#2855601
In response to Junk86
That question I do not know.
I would think that you could inspect the area with a borescope and see if those are welded in place or floating.
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Junk86
Poster
Posts: 69
Reg: 03-15-19
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03-21-23 02:40 AM - Post#2855986
In response to Tony1963
The motor mount nuts are floaters. Why they did not weld them to the frame is a mystery.
When you reassemble, mount the mount with the through bolt but leave it loose, then attach the mount to the frame. Then make sure all 4 bolts and nuts are tight.
I screwed mime up and now I have to start from scratch again.
Make sure you compress the coil spring before dropping the arm. Be very careful with the spring a very dangerous part.
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Tony1963
Frequent Contributor
Posts: 2238
Loc: Orlando Florida
Reg: 07-09-18
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03-21-23 08:17 AM - Post#2855994
In response to Junk86
My neighbor is a design engineer for BMW. He tells stories of designing and building vehicles. One of the challenges is to get through to all of the personalities and some people have strong views.
I will guess that the likelihood of ever servicing engine mounts was not part of the consideration, thus, the problem today. The vehicle's useful life is 20+ years in the past so there's the reason you find this service item difficult today.
Modern cars have liquid filled engine mounts and they do fail and get changed as part of a service routine. Of course, they swap out rather easily as well.
| People fear change because it threatens what they know, or what they claim to know. |
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Junk86
Poster
Posts: 69
Reg: 03-15-19
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03-22-23 04:32 PM - Post#2856048
In response to Junk86
I just spent the last 5 days trying to get the thur-out bolt in the proper position, and it never happened. Now I have to start all over again, because of the way GM designed those mounts.
Have to compress the coil spring, lower the right side a-arm and then loosen all the bolts again and attach the thur-out bolt first then attach 3 bolts with nuts. Never had such a problem before. This one takes the cake. I'd like to hear how others dealt with this project. 86 Camaro 2.8L V6.
Edited by Junk86 on 03-22-23 04:34 PM. Reason for edit: No reason given.
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Tony1963
Frequent Contributor
Posts: 2238
Loc: Orlando Florida
Reg: 07-09-18
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03-22-23 05:42 PM - Post#2856050
In response to Junk86
Are you sure that you're following the correct procedure? The reason I ask is that Alldatadiy.com has factory service information that might help.
The subscription is pretty inexpensive given the time that it could save.
Also, did you try searching for articles or YouTube videos on the subject?
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Junk86
Poster
Posts: 69
Reg: 03-15-19
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03-30-23 06:42 PM - Post#2856312
In response to Tony1963
No, I did not follow the correct procedure.
Correct procedure is to first install the through-
out bolt to the mount. then drop the motor down,
and with a little moving of the mount around, the
three bolts will line up. But then the fun begins
trying to attach the nuts to the bolts. Not an
easy job. Best to have a helper to hold the bolts
down, so the nuts can be attached and tightened.
Be careful not to pinch a wire. I did somehow and
now my gauge fuse blows out when I turn the
ignition switch on. Now I have to locate that,
and get my gauge fuse back up and working again.
Did not turn out the way I thought it would. One
problem and then another one pops up.
Edited by Junk86 on 03-30-23 06:45 PM. Reason for edit: No reason given.
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