2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

no compression ? leaky injecter?

Thread Tools
 
Search this Thread
 
Old Dec 9, 2011 | 09:55 AM
  #1  
bmwrx7man's Avatar
Thread Starter
Rotary Enthusiast
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Jun 2004
Posts: 892
Likes: 0
From: cranston rhode island
no compression ? leaky injecter?

well before i rip my motor out of my car i wanna make sure its the motor . story is i was in a parking lot waiting for some 1 2 weeks ago . shut it off . start it back up . they were taking too long so i shut it off . thenstarted it back up to leave . and boom the car ran like **** barley made it home now power felt like it was cutting out . next day i do a compression test . and it has nothing in front rotor at all not even a bump on the needle . the rear one was fine 3 good bumps . before all the this the car ran fine all stock . now my freind was telling me had a fd with leaking injecters and he got no compression numbers on front a rear rotor cause of it . he said it creates a film around the rotor . the car still starts right up has no power till the secondarys kick it then it runs smoother . its running on open downpipe now cause the cats were clogged . noticed it was glowing red before the was even warmed up . im confused on how to check for leaking injecter or just my apex seals are gone .
Reply
Old Dec 9, 2011 | 10:04 AM
  #2  
j9fd3s's Avatar
Moderator
Community Builder
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Mar 2001
Posts: 31,833
Likes: 3,232
From: https://www2.mazda.com/en/100th/
yes if the engine is flooded/not running right compression will go down. ive seen Rx8's go from mid 5's to 9's by changing the coils.
Reply
Old Dec 9, 2011 | 10:32 AM
  #3  
jerd_hambone's Avatar
Rotary Freak
Tenured Member: 20 Years
 
Joined: Jan 2005
Posts: 1,534
Likes: 28
From: Good Ol' Ky
Pull EGI fuse. Crank it over. Crank it over again. Crank it again. Should clean out excess fuel if that is the problem.
Reply
Old Dec 9, 2011 | 10:57 AM
  #4  
bmwrx7man's Avatar
Thread Starter
Rotary Enthusiast
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Jun 2004
Posts: 892
Likes: 0
From: cranston rhode island
i did the compression test numerous of times like that . even put oil in the intake ports smoked alot felt a little better throgh out the revs but still the same
Reply
Old Dec 9, 2011 | 11:38 AM
  #5  
dwb87's Avatar
This is my social media.
Tenured Member 15 Years
iTrader: (22)
 
Joined: Jan 2006
Posts: 2,744
Likes: 0
From: WA
Maybe it is time to get your injectors flow tested and cleaned... Witch Hunter is great!
Reply
Old Dec 9, 2011 | 12:45 PM
  #6  
MazdaMike02's Avatar
Mazda Tech
iTrader: (4)
 
Joined: Nov 2007
Posts: 1,589
Likes: 1
From: Tottenham, ON
Seals might be jammed up with carbon, try letting it sit with Marvel Mystery Oil and see if that makes a difference.
Reply
Old Dec 10, 2011 | 07:10 AM
  #7  
bmwrx7man's Avatar
Thread Starter
Rotary Enthusiast
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Jun 2004
Posts: 892
Likes: 0
From: cranston rhode island
let wat sit with marvel oil? idk it happended randomly guys
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Logan Reinisch
General Rotary Tech Support
44
Sep 17, 2018 12:20 PM
Andrew7dg
1st Generation Specific (1979-1985)
3
Aug 6, 2017 01:41 PM
spokanerxdude
Megasquirt Forum
3
Oct 6, 2015 12:28 PM




All times are GMT -5. The time now is 11:29 PM.