First start?
#1
First start?
I am almost done rebuilding my engine. it's an 85 GSL-SE 13b 6port. what i am wanting to know is on the first start after tuning do i do a rev test to ensure that i did everything correct and make sure it holds. or do i wait till after break-in to even think about hitting the higher rpms. it will be a daily driver and a weekend autoX car. the break-in that im doing is 1,500miles below 3k rpm change oil, then another 1,500 miles keeping below 5k. so a total of 3k miles without going wot.
#2
Senior Member
iTrader: (3)
Join Date: Sep 2004
Location: Oklahoma City
Posts: 700
Likes: 0
Received 0 Likes
on
0 Posts
Did you use new bearings during the rebuild? this makes a difference in the break in. If so then I would stay under 4k for 1000 miles and then under 5k for the next 500 and gradually work it up from there if it were me. However I have ripped them shortly after building them, but it is a little more risky for spinning bearings.
Do not rev it after it starts. Try to keep it below 4k. The motor builds better compression as rpms go up due to the seals pushing on the housings more. I would change the oil 500 miles after rebuild, 1500 is too long.
Do not rev it after it starts. Try to keep it below 4k. The motor builds better compression as rpms go up due to the seals pushing on the housings more. I would change the oil 500 miles after rebuild, 1500 is too long.
#4
Moderator
iTrader: (3)
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,848
Received 2,609 Likes
on
1,851 Posts
you shouldn't use synthetic for break in, it'll never break in!
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM