Just finishing rebuilding my turbo engine again and i need to run it in but this time as well as fitting new rings, big end and main bearings i have also had the turbo rebuilt and dont really want to be running a oil for 500 miles that cud damage the turbo bearings. Rick
I got some mineral running in oil from the place that did all my engine work and they said to use the running in oil for around 100 miles then drop the oil out and run whatever oil i want as the rings will only take minimal beding in as the bores have been race honed or something (they are primerialy a race engine builders). Rick
ive always been told mineral oil to run in an engine. 500 miles then change the oil, run in for 500 more then gradually increase the boost for up to 1500 miles, thats wat a friend did with his rs turbo and had no problems with it at all
Originally posted by Rick Draper Just finishing rebuilding my turbo engine again and i need to run it in but this time as well as fitting new rings, big end and main bearings i have also had the turbo rebuilt and dont really want to be running a oil for 500 miles that cud damage the turbo bearings. Rick
Snap, same here. I've only just mine going (had trouble with the ECU and fuel pump relay). I've used VX own mineral oil (15W40 I think). As I have trade club via club calibra, its about £8 for 5lt bottle, plus you get a free oil filter at the moment (limited offer).
I've read a american site on running in engines, haven't got the URL to hand. I had no running in instructions with my piston rings, so I'll be following this guide I've read.
1) Have no boost, have NO thread showing on actuator rod.
2) Mineral oil for 20 miles (!), 3K max. Give it hard on & off accerlaration.
3) Change oil, flush and renew with mineral oil again.
4) Drive for 500 miles, 4K max. Give it hard on & off accerlaration.
Can't remember the rest, I'm NOT saying this is the way to do it, its just advice.
The point they're trying to make is to avoid going on a motorway and clock up miles at a fixed speed. This will glaze the bores.
It's good for revs to go up and down, and the throttle to move as well. Some load is good, just not too much in the first miles, and not prolonged either!
The very early oil change is to get rid of the original swarf from circulating all over the place