The Triumph Dolomite Club - Discussion Forum

The Number One Club for owners of Triumph's range of small saloons from the 1960s and 1970s.
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PostPosted: Mon Dec 10, 2018 7:21 pm 
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I realise that I may be asking the impossible here... but I'm trying to avoid having to buy a pair of newly manufactured parts which I understand are often the cause of very harsh running vibrations.

Does anybody have a pair available please to replace my ones that are well any truely past it?

Alternatively is there a way of 'curing' these new parts to soften them?

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PostPosted: Mon Dec 10, 2018 7:38 pm 
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poly bushes can cause vibration if the shore is too hard but I've not heard of new rubber ones being too stiff if anything they are too soft and don't last as long as original ones.

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PostPosted: Tue Dec 11, 2018 12:00 am 
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Some new Gearbox mounts sold for Sprint/1850 have turned out to be too hard causing noise and vibration, hence general adoption of Galileo's mod using a Volvo mount. I've tried it and it works!

On engine mounts, as Justin says the general quality of replacements is poor with new mounts sagging rapidly or shearing rubber from metal prematurely. There doesn't seem to be a cure here, some folk on here have been discussing the possibility of commissioning poly type engine mounts but there seems nothing concrete (or even poly) in the pipeline so far.

I might have 1 second hand OE one available that isn't past it. Have to check!

Steve

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PostPosted: Tue Dec 11, 2018 8:27 am 
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Curveball incoming....
I have used Jag engine mounts on a couple of cars (including my TR7 engined toledo). They are also used on some Caterhams.... They are available as OEM parts too (as well as a range of alternative qualities at lower prices)

These are the beasties, they have a 1/2"UNF (from memory, need to double check) centre threaded bit, and two holes in the "base" for 5/16UNF (or 8mm if you wish). The center fixing makes them handy for attaching an alternative bracket. Something as simple as a bit of box section steel would work, but not sure on spacing of the subframe fixings.

https://www.sngbarratt.com/uk/#!/Englis ... S1.5%20DHC

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PostPosted: Tue Dec 11, 2018 10:39 am 
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Quote:
Curveball incoming....
I have used Jag engine mounts on a couple of cars (including my TR7 engined toledo). They are also used on some Caterhams.... They are available as OEM parts too (as well as a range of alternative qualities at lower prices)

These are the beasties, they have a 1/2"UNF (from memory, need to double check) centre threaded bit, and two holes in the "base" for 5/16UNF (or 8mm if you wish). The center fixing makes them handy for attaching an alternative bracket. Something as simple as a bit of box section steel would work, but not sure on spacing of the subframe fixings.

https://www.sngbarratt.com/uk/#!/Englis ... S1.5%20DHC
Not at all sure these would work with a Sprint engine/subframe and the different mount system used. Though I can see how an 1850/TR7 motor could use them with an 1850 frame.

Steve

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2 door '73 Toledo with Vauxhall Carlton 2.0 8v engine OWF 797M (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine EGP 247T (The Dolomega)
'91 Cavalier 2ltr 8v auto
'95 Cavalier 2ltr 16v auto
Spectrum Auto Services, Servicing, Repairs, Electrical, Recomissioning, MOT prep, Trackerjack brake fitting service.
Apprentice served Triumph Specialist for 45 years and home of Maverick Triumph.PM for more info or quotes.


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 Post subject: Yes.....
PostPosted: Tue Dec 11, 2018 10:47 am 
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Quote:
Curveball incoming....
I have used Jag engine mounts on a couple of cars (including my TR7 engined toledo). They are also used on some Caterhams.... They are available as OEM parts too (as well as a range of alternative qualities at lower prices)
Following on from your previous suggestion of this Clive,
I have looked at this and the XJ mount will be feasible for the nearside.
It is the same height as the OE Sprint mount.
:( Not feasible, in my opinion, for the offside though.


Elsewhere it was suggested that a MX5 mount may work.
I bought one of these to try but it is way too soft.


For some months,
I have an idea for the offside mount but since there is no urgency for my car
I have yet to make a prototype :oops:
This idea involves using rubber.







Ian.

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PostPosted: Fri Dec 14, 2018 9:11 am 
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I did look at manufacturing some poly ones made of an appropriate shore material or some better quality rubber ones. Unfortunately the project ground to a halt owing to lack of interest from the manufacturers I approached.

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1961 Chevrolet Corvair Greenbrier Sportswagon
1980 Dolomite Sprint project using brand new shell
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PostPosted: Fri Jan 18, 2019 6:50 pm 
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I've retrieved the original mounts when I visited my car in Hungary last weekend and found them to be in remarkably good nick apart from the obvious creep that they've developed over 43 years so I may put them back in upside-down and in 21.5 years they'll be back where they started ! :woohoo:

Obviously that would make the engine sit high initially which would affect both clearance to the bonnet and propshaft angle, though the latter only slightly. Has anybody done this before and can stop me if it's a daft idea?

I've also measured the shore hardness of both these pair and a pair bought off t'internet and the difference is massive. The originals measure around 45, so would have been c.50 when new says a rubber expert I know, while the new ones are a rock-hard 70.

Does anybody know the manufacturer of the new mounts that we can just ask to change the mix? Or maybe the club could commission them to make some softer ones 'just for us'?

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PostPosted: Sat Jan 19, 2019 10:07 pm 
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ANG triumph sell them so it may be worth having a chat and how do you measure the shore rating on manufactured mount?

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PostPosted: Sun Jan 20, 2019 7:34 am 
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I wonder if this is something Chris Witor would be interested in? There seems to be enough demand for Sprint items.


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PostPosted: Sun Jan 20, 2019 8:27 am 
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Quote:
ANG triumph sell them so it may be worth having a chat and how do you measure the shore rating on manufactured mount?
You'd hope they'd want to sell useful items unlike their current ones.... I'll look 'em up. Similarly Witors :)

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