Some information on engine mounts for OHV Dolomites.

[Richard the old one]

For a long time I have believed that the 1300, 1500 and the 1850 dolomites have all used the same engine mounts, part number 158016, but that there was a dob of paint in them to indicate which were for use on a 1850 dolomite as these were softer mounts than the ones used on the 1300 and 1500 dolomites. I have only just discovered that the Official Triumph Dolomite Range 1976 Parts Catalogue gives a part number 149934 as being the engine mount for a 1500cc Dolomite. If you look at the Rimmer Bros site this states that the 149934 has been superseded by the 158016. Another interesting thing that I noticed in the Official parts Catalogue is that when the mounts are fitted to an 1850 engine they should also be fitted with a engine mount restrictor, part number 158586. Looking at the drawing in the parts catalogue this would stop / restrict the downward movement of the engine under shock but if the restrictor was turned around it would stop / restrict the forward movement of the engine and so prevent the fan hitting and damaging the radiator. Out of interest I also looked in an Official Triumph 1850 Repair Operations Manual that I have and in that it shows the restrictor plate fitted in such a position which would limit the forward movement of the engine.
A few of questions for 1850 owners does your car have a restrictor plate fitted, if so which way round is the restrictor plate fitted and finally do you think it makes a difference?

[MIG Wielder]

Hi Richard, I've had a look at my 1850 and both of these brackets ( snubbers ?) are fitted to the rear of the rubber engine mounting, so mine is arranged to stop the engine moving forwards too far.
Do they work ? Well yes , I think they do because my nearside one is bent outwards from the rubber mount at an angle of 30 degrees. So it feels like time for a new n/s mount even though it looks O.K.
I remember when we were doing Kyle's engine his were fitted differently. I dare say he'll be along in a minute to say how his are fitted.

Tony.

[Richard the old one]

I am very disappointed that only MIG Wielder has responded to my post about 1850 engine mounts being fitted with snubbers, or what some call restrictors.

Come on 1850 owners. Does your car have snubbers and which way round are they fitted?

Richard

[dollyman]

Appologies Richard, i totally forgot, just been to garage in the rain as punishment
Mine are pointing to the rear and are original. I think they would take a hell of a lot to bend them

Tony.

[Richard the old one]

Hi dollyman.

Many thanks for going out in the rain to have a look. When you state yours are pointing to the rear, am I correct to think they are on the front, radiator side of the mount and do you think that would stop forward movement of the engine?

MIG Weider previously stated that his were fitted to the rear of the mounts and that he thought they were there to stop forward movement. Not having a 1850 I am having difficulty is assessing which side the snubbers need to be fitted to stop forward movement, but having thought about it I think MIG Weiders set up would stop forward movement but yours would stop rear movement.

[dollyman]

Hi Richard, Yes on the rear of the mounts the same as mig welder's.

Tony.

[BobM]

Hi Richard,

I have had my 1850 since 1973 when it had done just 3,000 miles. The snubber brackets are fitted to the rear of the mounts and as you say prevent the engine surging foreword. The engine mounts for the 1850 are softer than for the OHV Toledo and Dolomites which are harder. Sorry I have forgotten the shore numbers.

I discovered this in the 70's, because I used to tow a caravan. I towed across Europe and most of Britain with only one issue. It was all but impossible to overcome violent clutch judder when reversing the caravan up an incline. Checking the whole drive line, changing the clutch, nothing helped. Finally the workshop foreman in the main dealers suggested fitting Toledo engine mounts. Problem sorted, but not surprisingly with increased noise and vibration. This was reduced by fitting a hard mount on the left hand side of the engine and the softer 1850 mount on the right hand side. The car has not been used for towing anything other than a light trailer since the early 80's, when it was returned to a pair of 1850 mounts.

It would appear Rimmer's have a supply issue.

BobM

[MIG Wielder]

As promised here is a photo of my nearside 1850 engine mount with the restrictor under the exhaust manifold.
You can see how much it is bent backwards. So yes; they do seem to work.
Now how to bend it back ... ?
Tony.