The Triumph Dolomite Club - Discussion Forum

Confused now, do you mean OHV or OHC? 1850 is OHC and those mounts based on p/n are suitable for the 1850.

Richard the old one wrote: ↑Tue Jul 18, 2023 9:34 pm I was aware that Chris Witor had started to produce sprint engine mounts so I contacted him to see if he would produce mounts for 1500 dolomites. He did agree to do this and I supplied him with a number of mounts so that he could measure the shore ratings and also measure the off set. The outcome is he now produces 70 shore mounts for 1300/1500 and 60 shore for 1850 engines which is hardness that the cars were originally fitted with due to the difference in engine weights.

I have had a set on one of my cars for a couple of years now. I have not checked them recently so I will have a look tomorrow and report back if there is any delamination. The rubber based mounts that were available just did not last.

I had a look at the superpro web site and could not see any engine mounts being sold.

captain_70s wrote: ↑Tue Jul 18, 2023 6:03 pm Just fitted a set to my car a fortnight ago, fitted perfectly, unlike the usual repo ones. Unfortunately the poly seems to be coming away from the stainless on one of them (you can see daylight through the gap!) So I'm going to have to chase them up about it. I imagine it's a defective part as I've not heard of anybody else having issues...

Richard the old one wrote: ↑Wed Jul 19, 2023 11:04 am I believe it is because the engine weights are different.

Carledo wrote: ↑Wed Jul 19, 2023 2:35 pm

Richard the old one wrote: ↑Wed Jul 19, 2023 11:04 am I believe it is because the engine weights are different.

Weight probably IS a factor, but it's probably more to do with torque output and reaction, the slant engine is much torquier (is that a word?) than the OHV so the turning or torque reaction moment will be considerably higher on the slant motor and the mounts need to compensate for this.

Steve

Richard the old one wrote: ↑Wed Jul 19, 2023 8:55 pm The official Triumph Dolomite Range 1976 Onwards Catalogue identifies the 1300, 1500 & 1500HL as using an engine mount having a part number 149934 and the 1850 is identified as using a different mount with a part number 158016.

However if you look at later documentation such as the Rimmers catalogue edition 2.2 it indicates that 1850/1500/1300 all use 158016.

I have also been told that at some point in the production life time, the hardness of the rubber was measured and a coloured blob of paint was used to indicate the rubbers hardness and it was then possible to select the mounts with the most suitable hardness for your engine. I can’t remember what the code was or which engine used the harder rubber mounts. This marking process was not continued in later production you were just supplied with a part 158016.

When Chris tested a number of mounts that I took down to him he was able to divide them into two groups these being either 60 or 70 shore and Chris’s assumption was that harder 70 shore would be for the heavier 1300/1500 engine. I do not think he considered the engine torque might be the determining factor so there seems to be a case to reconsider this.

Today I checked the set that I have had on one of my 1500cc Dolomites now for three years and there and there is no signs of them delaminating.

When it comes to engine movement when I attempt to move the engine by hand there is no movement and this compares with some movement with the old rubber type mounts on my other cars.

I do not know how many engine mounts he has sold and what feedback he has had.

If any fellow members have fitted them what is your assessment of them?