Outer Limits 4x4 Board

dieseldude wrote:Do petrol motors suffer from glazing in much the same way as diesels?

i.e such that if a petrol motor isn't worked (Not have the guts flogged out of it, but laboured) will it glaze up also?

I dont beleive so, but someone like bogged will have the tell all definitive answer for you

skinny wrote:if your refering to ships like huge coal carrying or container ships, my understanding is they shut one motor down whilst at sea climb in to the bore and scrub the carbon etc off the bore walls they will do this each trip across.Plus they don't run on diesel they use a crude oil almost.

The ships run on stuff called marine oil - they make this after bitumen...

The ships have large fuel heaters which thin this crud out enough to burn efficiently. the engines are gearboxed, run at @6-800 rpm and have variable pitched props to control speed. The engines are both run flat out on long runs - but only at port will they do a clean out - as the crap that comes out has to be pumped off the ship.

As for glazing - dial the baby up - CAT run engines in at full load at 1500 rpm on dyno's for about 2 days solid. That settles the bores and pistons and sets the engine up for maximum pulling power. I concur with Carl - after weeks running around - you need to free the gals up with a long run!!

Oh - and PS - Bogged - owned - yet again someone else had to tell you to shut the fcuk up.

80diesel4play wrote: Oh - and PS - Bogged - owned - yet again someone else had to tell you to shut the fcuk up.

he he he just found this in the sig line of some one and it reminds me of Bruce

dieseldude wrote:Do petrol motors suffer from glazing in much the same way as diesels?

i.e such that if a petrol motor isn't worked (Not have the guts flogged out of it, but laboured) will it glaze up also?

Yep, they suffer from it worse. The inherent design of the petrol engine means it doent last as long although all the newer petrol engines are extremely well built & last forever.
A deisel is actually better suited to stationary engine (constant revs) and tend to last longer in these situations because of their inherent design and the way their power is produced.
I am not going to get into all the intricacies of why as I will be here all day, this is just a basic overveiw.

Constant revs can also cause glazinf of the bores, not just constant idling but one thing to remember is it dosnt happen overnight.

Thanks for the info MK

Shame not everyone is so accomodating

No worries. There is a time & a place for stupid comments & this thread wasnt it. Thats what chit chat is for, your question may have sounded silly to some but you were not sure & thats why you were asking.

Not everybody knows everything, I know I dont but when I do I will voice my veiw & give reason for it.