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#1 New rebuilt engine - fill or not fill
Posted: Mon Oct 31, 2022 12:18 pm
by lyons
Just completed rebuild of 3.8 engine and as the shell could be a long way off, I had a thought in the back of my mind that it is better to fill the engine with oil to prevent the seals from drying out.
Am I correct and what is the wisdom out there.
Thanks
#2 Re: New rebuilt engine - fill or not fill
Posted: Mon Oct 31, 2022 12:23 pm
by mgcjag
The oil will sit in the sump below the level of any seals...or do you mean fill it to the top ...Steve
#3 Re: New rebuilt engine - fill or not fill
Posted: Mon Oct 31, 2022 12:39 pm
by phoenix
Please make sure you put some oil down the plug hole and turn the engine over regularly.
I am building an S1 4.2 for someone. The engine was rebuilt some years ago by someone else and the piston rings on the cylinders rusted a groove in the wall and it had to have three new liners. We only found out with a compression test after we could not get it to run properly. It just would not idle below 1.200 revs and probably cost £1000 plus time taking out stripping etc. What a Bu..er.
#4 Re: New rebuilt engine - fill or not fill
Posted: Mon Oct 31, 2022 7:25 pm
by abowie
Leave it empty. Turn it over regularly.
#5 Re: New rebuilt engine - fill or not fill
Posted: Wed Nov 02, 2022 12:26 pm
by lyons
Thanks for your replies.
It seems that it is best to drop some oil down the plug hole a turn it over regularly just to keep the bores lubricated - but will having NO oil in the sump do any damage over time.
Regards