What compression is good??
11-24-06, 06:14 AM
#6
HAILERS
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 21 Likes
on
19 Posts
******since when are there rotary compression tester*********
Since the first Mazda rotary cars in the late 70's and the first Suzuki RE5 motocycle.
There's a *mechanical* tester made for the RE5 ( makes squiggley marks on a roll of paper), and the Mazda engines have a digital compression tester to measure all three *faces/chambers* of each rotor.
Unlike a common piston engine compression tester which can't determine with Accuracy the compression of EACH face/chamber of a rotor.
A homemade one can be built for less than a tenth of the price of the Mazda one by reading the following thread and using your head: https://www.rx7club.com/showthread.p...RESSION+TESTER
An idea of what the factory one looks like is shown on the following site near the bottom of the page: http://www.mazdatrix.com/toolmisc.htm
Since the first Mazda rotary cars in the late 70's and the first Suzuki RE5 motocycle.
There's a *mechanical* tester made for the RE5 ( makes squiggley marks on a roll of paper), and the Mazda engines have a digital compression tester to measure all three *faces/chambers* of each rotor.
Unlike a common piston engine compression tester which can't determine with Accuracy the compression of EACH face/chamber of a rotor.
A homemade one can be built for less than a tenth of the price of the Mazda one by reading the following thread and using your head: https://www.rx7club.com/showthread.p...RESSION+TESTER
An idea of what the factory one looks like is shown on the following site near the bottom of the page: http://www.mazdatrix.com/toolmisc.htm
11-24-06, 06:51 AM
#7
HAILERS
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 21 Likes
on
19 Posts
Originally Posted by HAILERS
******since when are there rotary compression tester*********
Since the first Mazda rotary cars in the late 70's and the first Suzuki RE5 motocycle.
There's a *mechanical* tester made for the RE5 ( makes squiggley marks on a roll of paper), and the Mazda engines have a digital compression tester to measure all three *faces/chambers* of each rotor.
Unlike a common piston engine compression tester which can't determine with Accuracy the compression of EACH face/chamber of a rotor.
A homemade one can be built for less than a tenth of the price of the Mazda one by reading the following thread and using your head: https://www.rx7club.com/showthread.p...RESSION+TESTER
An idea of what the factory one looks like is shown on the following site near the bottom of the page: http://www.mazdatrix.com/toolmisc.htm
Since the first Mazda rotary cars in the late 70's and the first Suzuki RE5 motocycle.
There's a *mechanical* tester made for the RE5 ( makes squiggley marks on a roll of paper), and the Mazda engines have a digital compression tester to measure all three *faces/chambers* of each rotor.
Unlike a common piston engine compression tester which can't determine with Accuracy the compression of EACH face/chamber of a rotor.
A homemade one can be built for less than a tenth of the price of the Mazda one by reading the following thread and using your head: https://www.rx7club.com/showthread.p...RESSION+TESTER
An idea of what the factory one looks like is shown on the following site near the bottom of the page: http://www.mazdatrix.com/toolmisc.htm
Last edited by HAILERS; 11-24-06 at 07:04 AM.
Trending Topics
11-26-06, 02:07 PM
#9
Full Member
Join Date: Jan 2004
Location: South Dakota
Posts: 132
Likes: 0
Received 0 Likes
on
0 Posts
120 is perfect compression, I personally would get things prepped for a rebuild with any compression under 90 though that rebuild could be a few years off to never with an NA.
11-28-06, 04:54 PM
#10
Wanna play with my Wankel
Join Date: Oct 2006
Location: york PA
Posts: 378
Likes: 0
Received 0 Likes
on
0 Posts
I called my local Mazda dealer and talked to their service manager about getting my '89 vert tested. I asked him if they used a special rotary compression tester or just a regular tester. He said he has never heard of a rotary compression tester and that they only use a regular tester that I can buy at Autozone.
Is there a write up on how to do the compression test?
Is there a write up on how to do the compression test?
11-28-06, 11:26 PM
#13
Originally Posted by bean13
I think you should run like hell form any dealer that says they have never heard of an rotary compresion tester. But I would run from most dealers...ahhaahha
There was actually a guy on here that posted a pic of the output from the rotary tester yesterday. Its basically a series of bars taht shows the output of the different faces.
11-28-06, 11:48 PM
#14
Haven't we ALL heard this
Originally Posted by Sideways7
+2
There was actually a guy on here that posted a pic of the output from the rotary tester yesterday. Its basically a series of bars taht shows the output of the different faces.
There was actually a guy on here that posted a pic of the output from the rotary tester yesterday. Its basically a series of bars taht shows the output of the different faces.
James
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
07-01-23 04:40 PM
