Rebuilt engine break in! How to?
- Thread starter RO_SUNNY
- Start date
Daniel Warner
New Member
-Keep revs lower
-Try to keep off boost and putting to much load on the engine
-Try to keep off boost and putting to much load on the engine
Daniel Warner
New Member
Haha
Not as crazy as it sounds; OK when it's just been built don't be brutal with it, but you want it to bed in for the way it's going to be driven so high revs aren't such a bad thing in that case.Or keep the revs high and on boost.
Just make sure the engine gets flushed out with fresh oil.
...at least that's what I read somewhere. I've got no practical experience of this.
johnny gtir
Well-Known Member
I hear mixed reviews some say slow and steady. But with newer engines and materials changing over the years if you pussy foot about to much the rings etc don't expand enough and make a proper seal.
Same with run in miles if you do as many as some suggest then it's half the life of the engine used so to speak
Same with run in miles if you do as many as some suggest then it's half the life of the engine used so to speak
warpspeed
Well-Known Member
Get rid of the semi synthetic and put mineral oil in.
If you've new cams run at 2500rpm for 20 mins to bed in bearings then 60% load on the engine for 50 miles, drop oil and cut open filter to inspect.
Then a fully synthetic oil and still 60% load for another 500 miles but don't nurse the engine as you need cylinder pressure to bed the rings in, this is the critical bit as you need to get the rings bedded in at this point.
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If you've new cams run at 2500rpm for 20 mins to bed in bearings then 60% load on the engine for 50 miles, drop oil and cut open filter to inspect.
Then a fully synthetic oil and still 60% load for another 500 miles but don't nurse the engine as you need cylinder pressure to bed the rings in, this is the critical bit as you need to get the rings bedded in at this point.
Sent from my SM-G920F using Tapatalk
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I ran my engine for 20 mins to check everything was ok then it had around a bar of boost and 4000rpm straight from 0 miles, that was a 2.3L with a gt3071. Think I ran it like that for 60-70 miles, changed the oil then upped the boost and revs a bit more for another 100 miles.
And that was my running in done, changed the oil again from mineral to synthetic and then took it to Castle combe.
And that was my running in done, changed the oil again from mineral to synthetic and then took it to Castle combe.
Thanos
New Member
When I want to make a fully controlled break in,and the engine is fully rebuild,I am using a dyno.
It's cost a bit more but i can you can manage the load and the boost very accurate and this help me a lot.
Finally I change at list three times the oil filter and the oil too.
It's cost a bit more but i can you can manage the load and the boost very accurate and this help me a lot.
Finally I change at list three times the oil filter and the oil too.
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This is how I finally did it.
Put 15w40 mineral oil in it, drove the car for 150 kms........changed the oil and filter to 15w40 mineral....drove another 100 kms.
Put 10w60 semisyn and filter......drove for another 100 kms.....than put Mobil 1 10w60 full syn and map the car!)))
The running was done like this:
-1'st 150 kms until 2500 rpm no load
-2'nd 100 kms 3500 rpm 0.5 bar load
-3'rd 100 kms 3500 tpm 0.5 bar with a lot of hills
Put 15w40 mineral oil in it, drove the car for 150 kms........changed the oil and filter to 15w40 mineral....drove another 100 kms.
Put 10w60 semisyn and filter......drove for another 100 kms.....than put Mobil 1 10w60 full syn and map the car!
)))The running was done like this:
-1'st 150 kms until 2500 rpm no load
-2'nd 100 kms 3500 rpm 0.5 bar load
-3'rd 100 kms 3500 tpm 0.5 bar with a lot of hills