12a with lots of carbon
#1
Full Member
Thread Starter
12a with lots of carbon
hi guys, i recent bought an rx7 with the 12a and it seems to have alot of carbon on the rotors (ouch) whats a good way to get rid of it without throwing the carbon against the rotor housings and scratching them? heres some pics. ive already seafoamed it with the spray and a seafoam bottle in the tank after i bought it, this is about a week later with plently of redlining. (as much as i car around here without breaking speed limits lol)
#4
Out In the Barn
iTrader: (9)
Sorry - my mistake. I should have read your entire post. Rotors will have some amount of carbon. it's the seals that are the important part. It might take several applications of the SeaFoam. Try it in 1/4 of a tank.
Last edited by KansasCityREPU; 03-11-19 at 09:02 AM.
#7
Full Member
Thread Starter
What about oil delivery? You mean the omp? As far as I know it's fine. How would I check it?
Trending Topics
#8
Out In the Barn
iTrader: (9)
The factory service manual has a process for checking the flow rate of the OMP. Foxed.ca - Mazda RX-7 Manuals
None of the suggestions on these pages is an endorsement, just things I have found. Take the advise they offer knowing that unintended consequences could happen.
https://www.rx7club.com/new-member-r...emoval-924383/
https://www.rotaryresurrection.com/2...injection.html
None of the suggestions on these pages is an endorsement, just things I have found. Take the advise they offer knowing that unintended consequences could happen.
https://www.rx7club.com/new-member-r...emoval-924383/
https://www.rotaryresurrection.com/2...injection.html
#9
Moderator
iTrader: (3)
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,849
Received 2,613 Likes
on
1,852 Posts
#10
HeyHeyHey..Its the Goose
iTrader: (3)
When people talk about carbon buildup they mean build up in the parts that need to move ie seals. If you have good compression then you have nothing to worry about.
#11
Full Member
Thread Starter
And my compression is around 85 using a regularly compression tester with the schredder driller out. It looks like that is a decent number if I go by other posts about fsm numbers. So that's good 👍
I guess I'll just seafoam it once in awhile and love her for what she is. It's too bad I can see the rotor housings either my horoscope.
#12
Full Member
Thread Starter
So I was changing my spark plugs and found this on a rotor. I've noticed the rear rotor has alot more carbon on it than the front.
Looks like a big chunk of carbon getting ready to fall off. It's hard to tell. But this looks close to where the appex seal is.
Looks like a big chunk of carbon getting ready to fall off. It's hard to tell. But this looks close to where the appex seal is.
Last edited by Zenobia K'ael; 04-01-19 at 10:17 AM.
Thread
Thread Starter
Forum
Replies
Last Post
kevino
2nd Generation Specific (1986-1992)
17
12-04-13 10:49 PM
forced inducted fd dude
General Rotary Tech Support
4
08-18-06 12:45 PM