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Old 26th June 2020, 12:13   #31
clf
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Originally Posted by marinabrian View Post
Absolutely Alan, the shore hardness of the rubber in petrol and diesel models is entirely different, and the silicone glycol mixture different too.



I drained both a used diesel one, and one from a V6, and measured the viscosity in Redwood seconds (can't lay my hands on the figures at the moment) however fluid recovered from the diesel one was considerably more viscous than that of the petrol at 21 degrees C



The top and bottom of the matter is simple, if an item is cheap, even if it looks the part, this doesn't ensure that it's fit for purpose.



The V6 mount although dimensionally identical to the diesel one, the one which I fitted prior to the purchase of a genuine Rover diesel mount from XPart, transmitted huge amounts of vibration in comparison to the correct part that was removed.



In the case of all of the mounts, two were original factory fit, none of which were Chinese manufacture, none made a sloshing noise when shaken.



I'm fairly certain that if there were air present inside the unit, this would be detrimental to the operation, air being compressible, and fluid not so, the damping action of the mount being compromised as a result.



Personally speaking I wouldn't fit the mount as supplied, instead I would source one from XPart, and know that at least the supplier had been subject to some form of objective scrutiny



Brian
Another thought. Could the mounts with an air gap be designed as such? Without the mass of the engine and box, the glycol slashes,however, when fitted, the mass then compresses the rubber, which expels the air, leaving no gap?

I have to find my direct from china (facom) mount, I bought it to keep in the shed for when I need it, and it was something like $25. Supposed to have been for a diesel.

EDIT: thanks to lockdown I cannot find it. 4 large boxes of spares, all tidied at the beginning of lockdown, cannot get to one of the boxes right now (I hope it is in that one).

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Last edited by clf; 26th June 2020 at 16:13..
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Old 26th June 2020, 13:28   #32
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Hi Arctic.

Appreciate your input on this (and your quality photos)

DMGRS are still insisting the part is right and all their others go glug.

I was hoping they might join in this discussion.

Alan

(I see a few more posts on the thread since I opened this page to reply, so the post is a little out of sync. Thanks everyone for taking the time to write & share your experience)

Last edited by alan richard; 26th June 2020 at 13:35.. Reason: continuity error.
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Old 27th June 2020, 16:27   #33
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Here is the one I threw away, only to get it out of the bin, only for a few mins honest.




That is as far as I could push the top stud over, and that's the fubar'd one
I can push the one I've got as far over as that without a vice (i.e. using hands only).
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Old 27th June 2020, 17:09   #34
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Quote:
Originally Posted by alan richard View Post
Hi Arctic.

Appreciate your input on this (and your quality photos)

DMGRS are still insisting the part is right and all their others go glug.

I was hoping they might join in this discussion.

Alan

(I see a few more posts on the thread since I opened this page to reply, so the post is a little out of sync. Thanks everyone for taking the time to write & share your experience)
I have the genuine 1998 one from the College Car in my loft, I'll dig it out in the morning and give it shake, that should answer the question. I'm fairly certain there's not one as old as that and yet as new to compare the replacements with. If that one doesn't make a sloshing sound, they're most likely to be cheapo copies that are on sale today. It's really handy having that old but new stuff around, it makes things like this argument free.
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Old 27th June 2020, 17:19   #35
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Had one fitted to my diesel ZTT last year, ordered from and supplied by X part
When it arrived the only marking on it was "made in China" so not sure how long it will last.. That said there was certainly no sloshing noise from it.
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Old 27th June 2020, 18:56   #36
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just been into my garage to check out a Hydromount which I removed from an old diesel 75 and on the bottom was stamped J 3140.

I have given it a good shake and there is NO sloshing sounds whatsoever..And I find it impossible to move/bend the rubber
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Old 28th June 2020, 15:10   #37
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I checked out a mount that I had stored in the garage, received from DMGRS part no KKB101914, and it too “sloshes”.


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Old 28th June 2020, 15:29   #38
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I checked out a mount that I had stored in the garage, received from DMGRS part no KKB101914, and it too “sloshes”.


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That's a V6 part number Sean, by the way I tried to ring you yesterday about your IPK eeprom question.

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Old 28th June 2020, 16:56   #39
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That's a V6 part number Sean, by the way I tried to ring you yesterday about your IPK eeprom question.

Brian

Yes, DMGRS advertises one engine mount for both the diesel and V6.
Mobile Phone coverage not great here. Perhaps I’ll catch up with you tomorrow re other question.👍


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Old 29th June 2020, 06:53   #40
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I checked out a mount that I had stored in the garage, received from DMGRS part no KKB101914, and it too “sloshes”.


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Yes, same part No. on mine.

DMGRS did say that the load ratings on the V6 & the diesel are close enough together to combine the two.

I'd seen the numbers somewhere, forget now, but they seem close to one another to my untrained eye that I would accept the reason.

I just wish it wouldn't glug.
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