300 TDi Engine Rebuild

[keithjh]

Hi All,

Am about to start the rebuild of a 300tdi to put in my 90, anyway in the past i have always used Graphogen Lube on bearings etc etc, intend doing so again unless anybody has news of anything better.

If the bores are still good i was just going to re-ring the pistons, question is should i use Graohogen on the bores/rings or not? i have read conflicting advice on this.

In the past i have usually used EP90 to coat the bores rings when replacing pistons.

Regards

Keith

[vulcan bomber]

When I rebuilt my 200 I used a liberal squirt of engine oil on the bearings and a smear on the rings and lower piston skirt to help them into the bores. Engine runs well so it must of worked.

[Ally V8]

Still using it,the good thing about it is that it will sit there indefinitely,so if you dont run the engine for a long time after building it,it will still be protected.The graphite does tend to make the oil dirty,but its a good product.No problem in using it on piston thrust faces or rings.

[Tanuki]

I've always built up my engines "dry", just as they do at the factory. It's a lot less messy for a start; clinically-clean-and-dry parts are less likely to pick up dirt/dust during the assembly process.

There's much nonsense talked about the importance of lubricating the parts as you assemble them, turning the engine over on the starter to get oil-pressure before going for a start etc.

If you're storing a rebuilt engine, the correct answer is to pack the ports with some "Vapour Corrosion Inhibitor" paper [the brown stuff you find used to wrap bearing-sets, piston-rings etc packed in].

[Boydie]

Just a wipe of clean engine oil is all that is required, too much and you end up with, initially, a smoky engine