MG-Cars.net

Welcome to our resource for MG Car Information.

Recommendations

Parts

MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from British car spares company LBCarCo.

MG MGB Technical - Moly or graphite?

We all know it is important to use a good assembly lube when engines are reconditioned, particularly on camshafts and tappets. Apparently, some assembly lubes are based on molybdenum disulfide, and some on collodial graphite.

Can any of you explain the practical difference and advantages/disadvantages?

Tore
Tore

Collodial graphite paste is good for building engines that are going to stand some time after building.

Moly disuphide is my usual building lubricant as it is easier to dispense from an oil gun and is less likley to introduce any contaminates.

Both work equally well and can be used on cams, tappets and crank bearings, but neither should be used on pistons or the bores, where plain engine oil is best - you do not want anti wear properties here or the bedding in process will be affected.
Chris at Octarine Services

Thanks. Then I will use Graphogen on the midget engine I am now rebuilding, as it will be standing for at least a year before the rest of the car is finished.


Tore
Tore

Graphite is slippery but is not particularly good as and extreme pressure lube. Not much help for lifter/cam lobe break in.
Barry
Barry Parkinson

This thread was discussed between 07/12/2006 and 09/12/2006

MG MGB Technical index

This thread is from the archive. The Live MG MGB Technical BBS is active now.