Clearance Tolerances?
#11
How about apex seal length and clearance of the side housing and apex seal edge? Seems like the after market seals I measured, atkins and hurley, are just a tad bit oversized in length. I am talking like 80.02 mm to 80.05 mm. Since the rotor housing width is right at 80mm, this means they will not be straight until the sides wear a little. Has that been your experience also, ito?
#12
Im sorry I just checked back in..
I was wondering about the clearances of the eccentric shaft.
(I know I am gonna phrase this wrong) When you install the front spacer,thrust needle bearning,thrust washer/balance weight,sprocket and drive gear.
the manual states the tolerable play is 0.040-0.070 mm
The max being 0.09 mm.
In your experience is it common that a 93 with 60k miles on it will be out of acceptable levels.
How close do these actually come to being out of spec?
I was wondering about the clearances of the eccentric shaft.
(I know I am gonna phrase this wrong) When you install the front spacer,thrust needle bearning,thrust washer/balance weight,sprocket and drive gear.
the manual states the tolerable play is 0.040-0.070 mm
The max being 0.09 mm.
In your experience is it common that a 93 with 60k miles on it will be out of acceptable levels.
How close do these actually come to being out of spec?
#13
Originally Posted by rxseven' date='Jan 11 2003, 01:11 AM
How about apex seal length and clearance of the side housing and apex seal edge? Seems like the after market seals I measured, atkins and hurley, are just a tad bit oversized in length. I am talking like 80.02 mm to 80.05 mm. Since the rotor housing width is right at 80mm, this means they will not be straight until the sides wear a little. Has that been your experience also, ito?
#14
Originally Posted by Judge Ito' date='Jan 10 2003, 05:36 PM
Yes sir. Now we are talking. Many people have had problems with the atkins because of this reason. Since Dave Atkins at first did not address the issue to measure his seals many people just installed the seals with out measuring and had many problems. I measure every single seal even the factory ones. I even measure brand new rotor housings. I know they are new but I just don't care, I want to know, I have perfect parts instead of hoping and guessing Im getting perfetc parts. Apex seal length has to be .0015 of an inch smaller then the rotor housing width. This way when the engine is assembled and under a load, the smaller tip of the apex seal will not push itself over the longer part of the apex seal and create blow by and loose compression.
It's a no brainer but I am new and would have not thouht to measure even the stock parts.
If they are(apex seals that is) too long can they just be block sanded down to the correct length?
#15
Originally Posted by Fd3BOOST' date='Jan 11 2003, 01:26 AM
Im sorry I just checked back in..
I was wondering about the clearances of the eccentric shaft.
(I know I am gonna phrase this wrong) When you install the front spacer,thrust needle bearning,thrust washer/balance weight,sprocket and drive gear.
the manual states the tolerable play is 0.040-0.070 mm
The max being 0.09 mm.
In your experience is it common that a 93 with 60k miles on it will be out of acceptable levels.
How close do these actually come to being out of spec?
I was wondering about the clearances of the eccentric shaft.
(I know I am gonna phrase this wrong) When you install the front spacer,thrust needle bearning,thrust washer/balance weight,sprocket and drive gear.
the manual states the tolerable play is 0.040-0.070 mm
The max being 0.09 mm.
In your experience is it common that a 93 with 60k miles on it will be out of acceptable levels.
How close do these actually come to being out of spec?
#16
Originally Posted by Fd3BOOST' date='Jan 11 2003, 01:40 AM
Uhoo thanks for that bit of advice.
It's a no brainer but I am new and would have not thouht to measure even the stock parts.
If they are(apex seals that is) too long can they just be block sanded down to the correct length?
It's a no brainer but I am new and would have not thouht to measure even the stock parts.
If they are(apex seals that is) too long can they just be block sanded down to the correct length?
#17
Originally Posted by Judge Ito' date='Jan 10 2003, 05:54 PM
[quote name='Fd3BOOST' date='Jan 11 2003, 01:40 AM'] Uhoo thanks for that bit of advice.
It's a no brainer but I am new and would have not thouht to measure even the stock parts.
If they are(apex seals that is) too long can they just be block sanded down to the correct length?
It's a no brainer but I am new and would have not thouht to measure even the stock parts.
If they are(apex seals that is) too long can they just be block sanded down to the correct length?
Hey Im just trying to learn as much as I can for my car incase a nuclear bomb explodes and the only survivors are me and my Fd
#18
Originally Posted by Fd3BOOST' date='Jan 11 2003, 02:08 AM
[quote name='Judge Ito' date='Jan 10 2003, 05:54 PM'] [quote name='Fd3BOOST' date='Jan 11 2003, 01:40 AM'] Uhoo thanks for that bit of advice.
It's a no brainer but I am new and would have not thouht to measure even the stock parts.
If they are(apex seals that is) too long can they just be block sanded down to the correct length?
It's a no brainer but I am new and would have not thouht to measure even the stock parts.
If they are(apex seals that is) too long can they just be block sanded down to the correct length?
Hey Im just trying to learn as much as I can for my car incase a nuclear bomb explodes and the only survivors are me and my Fd [/quote]
I wish I had some info. like this many good websites when I was learning. I created a couple of bombs myself when I first started. Especially in the engine timing department. But that was 15 years ago. Thank god I was loyal to this little engine and did not give up.
#19
wow thats some good stuff judge :bigok: its always great to see someone who actually wants to build good motors, i used to work at a dealership, and we used to look at all the mana motors with a flashlight, mostly junk
mike
mike