New Engine break-in

[Dave S]

I'm almost at the stage of breaking-in my 'built ' engine and in need of the best proceedure for doing this.....complications will be e-manage,bigger injectors and single turbo new as well....

cheers

Dave S

[Digsy]

Assuming it is fully mapped and you are just talkin about a mechanical break in, keep it below max torque speed for a couple of hundred miles, then change the oil. If the rings or bores are partly worn then you might want to run it in a bit harder. If the rings and bores are the same as before the rebuild then it souldn't be anywhere near as critical.

 

If you are talking about a fully rebuilt engine, you might want to prime the lube system first by cranking with no fuel going in. If the rings and bores are new, then consider using a semi synthetic or even mineral oil for the very first few runs. New rings won't bed in properly on fully synthetic oil, and this is usually what the OEMs do. Be careful about your turbos' lube requirements if you go this route, though.

[Dave S]

Its new rings and bores.....will mineral oil cause any damage to the turbo....

also fully UN-mapped...will it be ok to start with someone elses fuel map on a similar setup

cheeers

Dave s

[oilman]

No, use mineral oil for the 1st 1000 miles then change to fully synthetic.

 

Cheers

Simon

[dude]

My engine builder says the first 10 mins is the most important , he says you must NOT let it idle in this time , it s a 2 person job minimum on this initial fire up , 1 to check for leaks etc and the other on the throttle .

Millers do a running in oil to bed everything in quicker !!!

 

Dude :flame Dev