cam cover 'D' plugs not Triumph

[checkrail]

Hi Following on from previous posts about using Triumph ones I have just wasted my money on four Dolomite Sprint ones on E-bay.
They are much too big, I should have gone to Rimmers for a comparison.

John

[JohnMorin]

Hi

Back in the 80's my wife had a Triumph dolomite 1850. I had to replace the cylinder head gasket and in the process I noticed it had D rubbers, I compared one to the Twin Cam ones and the only difference was the lip on both sides. I bought some and they are now in my S4. You may have to trim the lip on the inside on one of the rears to allow for the casting though. So Dolomite 1850 - yes, Dolomite Sprint - I don't know.

John

[checkrail]

Yes I see what you mean, there is certainly a lot to trim off.

Regards John

[alanr]

I just don't understand this....
Why would anyone buy Triumph Dolomite ones instead of the correct ones for the engine?

Some time ago now admittedly but I just purchased the correct ones from QED and fitted them. All no problem, perfect fit.Job done .

Alan.

[promotor]

I just don't understand this....
Why would anyone buy Triumph Dolomite ones instead of the correct ones for the engine?

Some time ago now admittedly but I just purchased the correct ones from QED and fitted them. All no problem, perfect fit.Job done .

Alan.

Hi Alan,

Mainly because the Lotus ones are now made of hard material, and can shrink and drop out. The Triumph TR7 and Stag are softer and have a lip on them to stop them dropping out or being blown out by crankcase pressure (another problem on its own, but still, it causes issues).

viewtopic.php?f=39&t=53041

[checkrail]

Yes the couple of unused Lotus ones I have are rock hard, the Triumph ones are much softer .

John

[The Veg]

What's the consensus on the metal D-plugs that I've seen on at least one of our specialist's website?

[JohnMorin]

Mainly because the Lotus ones are now made of hard material, and can shrink and drop out. The Triumph TR7 and Stag are softer and have a lip on them to stop them dropping out or being blown out by crankcase pressure (another problem on its own, but still, it causes issues).

That's what I was going to say
Never had an oil leak from the Dolomite in that area, unlike the Twin Cam. Also the lips act as retainers during assembly so they are less likely to fall into the engine or elsewhere, I've had that happen.

John