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Stiffer Engine Mounts
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Hey guys, I run my car pretty hard on private roads and I am assuming this has put a lot of load on the little A12 causing it to split engine mounts.
I'm on my third passenger mount and about to replace the drivers (metal plate has sheared from the rubber insulater). This could be down to crappy reproduction mounts but it seems weird that it would constantly do it over and over.

I've had a quick look in the techwiki but couldn't find anything except for a mention of Jaguar mounts with no part number.

I'm searching for a place that has poly (?) mounts for the engine but hoping I won't have to pay through the nose for them. A few people have recommended going solid mounts but I feel like that will put too much strain on the block/gearbox and start putting pressure cracks everywhere.

Open for advice or suggestions on this matter, one of the reasons I'm still on this site.

Thanks in advance, Jacob.

Posted on: 2016/1/21 15:53
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Re: Stiffer Engine Mounts
No life (a.k.a. DattoMaster)
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I'd be reluctant to go stiffer, breaking rubber mounts is better than breaking anything else. Maybe you could try a similar sized viscous mount from a modern car? Maybe a Micra or something at a guess. By viscous I mean some mounts have a fluid in them to soak up more vibration.

Posted on: 2016/1/21 18:06
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Re: Stiffer Engine Mounts
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Use genuine Nissan mounts. The B310 mount is bonded better and has breakage protection

Posted on: 2016/1/21 20:56
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Re: Stiffer Engine Mounts
No life (a.k.a. DattoMaster)
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the stock design is bad - for anything other than standard road use (genuine or not)

definitely upgrade - busted heaps of the stock ones
definitely don't go solid

check out the land rover engine mounts on ebay - forget the name of the exact ones (perhaps series 1 range rover), but there is a set that are just a round mount around 75mm diameter at a guess. i cut some off the base metal plate to clear the folded lip on the datsun crossmember. but i've been running one set on the rally car for years without breaking now

Posted on: 2016/1/21 22:44
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Re: Stiffer Engine Mounts
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Either that or make up a datsun specific variant of what Ford called the World Cup mounts for the Mark 2 Escorts, Basically what they did was made up a mount where the actual rubber was a Ford Transit leaf spring rubber the big one at the front fitted it into a tubular mount and then ran a through bolt such as an Unbrako through it and througn a couple of Tab mounts set up on the chassis.

Or make the mounts on the crossmember and the tabbed mount on the engine the linked page shows the detail basically unbreakable but still rubber isolation for vibration much better than solid mounts.
https://smckaperformance.com.au/shop/w ... -1-2-lowered-rack-mounts/

Posted on: 2016/1/22 10:34
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Re: Stiffer Engine Mounts
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Quote:

coxsteve wrote:
Either that or make up a datsun specific variant of what Ford called the World Cup mounts for the Mark 2 Escorts, Basically what they did was made up a mount where the actual rubber was a Ford Transit leaf spring rubber the big one at the front fitted it into a tubular mount and then ran a through bolt such as an Unbrako through it and througn a couple of Tab mounts set up on the chassis.

Or make the mounts on the crossmember and the tabbed mount on the engine the linked page shows the detail basically unbreakable but still rubber isolation for vibration much better than solid mounts.
https://smckaperformance.com.au/shop/w ... -1-2-lowered-rack-mounts/


Thats a good idea 1)not relying on shear. 2)cheap replacement 3) break proteted
- will be keeping that one in the bank

Posted on: 2016/1/23 1:26
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Re: Stiffer Engine Mounts
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I'm not yet sure how good an idea this is but my engine mounts are cushioned by metal springs rather than rubber, specifically a stack of Belleville washers.
https://en.wikipedia.org/wiki/Belleville_washer
They're stainless steel. I have four of them between the frame and the engine mount, then another four above the mount, with a bolt that goes through the whole works and is significantly smaller than the hole in the engine mount so it can move freely.

Thus far it's been working okay. The body doesn't jerk around from somewhat hard launches, and the washers certainly aren't going to fall apart any time soon.

This did require fabricating custom engine mounts, but I had to do that anyway.

Posted on: 2016/1/23 3:52
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Re: Stiffer Engine Mounts
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Are these the engine mounts you are referring to? because i am in the market for a couple. and two of these can be had for cheaper than a single extension housing seal for an A series 4 speed. which i also need.

Attach file:



jpg  s-l225.jpg (5.83 KB)
20853_5b2d01a7bbecc.jpg 213X225 px

Posted on: 2018/6/22 15:05
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Re: Stiffer Engine Mounts
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that's a normal type engine mount, a rubber insulator. It may be stiffer or it may be softer than the 1200 part

Posted on: 2018/6/22 20:36
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Re: Stiffer Engine Mounts
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The SMCKA link is no longer working. But here's a photo of (perhaps) the same thing

Attach file:



jpg  World cup engine crossmember Ford Escort Mk1Mk2 .jpg (23.62 KB)
174_5b2f014e8cfb8.jpg 500X332 px

jpg  world cup xmember with engine brackets.jpg (129.84 KB)
174_5b2f01685d133.jpg 641X479 px

Posted on: 2018/6/24 3:23
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