E28 Motor mounts

[Eurospec]

I'm trying to decide if I should go this route as well. The solid rubber mounts can be harsh, especially on cold start ups. I'm wondering what kind of effects the additional vibration will have on the engine, if any.

[dude8383]

I'm trying to decide if I should go this route as well. The solid rubber mounts can be harsh, especially on cold start ups. I'm wondering what kind of effects the additional vibration will have on the engine, if any.

im going a year already and no problems..the mounts really don't make the vibration harsh at all. You only feel it at idle...and even then its definitly something you can live with.

Sam has drivin my car, ask him what he thinks. Jay (Thumper) has the E21 mounts..ask him as well about the difference in vibration.

[Berlin]

if your stock mounts are fine and you change to the e28 mounts you WILL NOT notice any difference, ie what happend to me, so i really doubt there is any significant increase in vibration if there is any at all.

[Zoso]

For the record, what are the advantages of the E28 motor mounts?
Is it just a cheap replacement for the more expensive M42 mounts?

[Euro Nation]

For the record, what are the advantages of the E28 motor mounts?
Is it just a cheap replacement for the more expensive M42 mounts?

You can buy everything to do thw whole job for a little more than 1/4 the cost of using M42 replacement mount.

I'd imagine they last a bit longer and take abuse better too since they're spec'ed for an engine twice the size of the M42 and in a much heavier chassis.

[BrandC]

You can buy everything to do thw whole job for a little more than 1/4 the cost of using M42 replacement mount.

I'd imagine they last a bit longer and take abuse better too since they're spec'ed for an engine twice the size of the M42 and in a much heavier chassis.

True dat. The M42 will never put enough torque to wear out these mounts. And that's the whole idea, that you just set it and forget it!

[M42boy]

I've heard of people running both the E21 and E28 mounts (both which work well from what I understand).  Any advantage to one over the other??

[Eurospec]

I think I may have found an answer to the color variance.

One of the E28 motor mounts has a unique hexagonal shape. These mounts come in different colors (which are painted on, they are not molded into the rubber). The color is an indication of the stiffness of the mounts. The color/stiffness combinations are not available to me at this time.

Linkified

[Eurospec]

Upon further investigation, all vendors with the exception of Autohausaz show two differently designed mounts for the e28.

1) p/n 11811132793 Late E28 (535i From Production 1/1987)


2) p/n 11811175735 Early E28 (535i Thru 12/1986)


Has anyone installed the later? Is there any difference between the two other than their prices.

[Euro Nation]

I found several vendors that used the same lookup as Autohaus.

[dude8383]

the green ones are the mounts you should be using.

[Euro Nation]

Odd... for some reason some of the vendors now show the picture of the round one. Meh... honestly... any BMW motor mount with offset studs will work. You can use the green ones. If I did another car tomorrow I'd use the same mounts I did on my car, the black ones from autohaus/worldpac.

[tim_s]

interesting thread guys! thanks!

[318-is]

there is a thread on another forum which says if you want to uprate your engine mounts for more solid ones you can use ones of a ford of some sort! give me a mo an il try an find the link

[bmwman91]

Has anyone here had the (supposedly) infamous problem with the engine mounting ears cracking off of the subframe?  M20 guys have had this issue.  A stiffer mount probably is not something that would help ni that department.  After using these mounts on this car for 9 months I saw no cracks there, but who knows.