How much play is acceptable- hei
Thread Starter
Pro
Joined: Nov 2017
Posts: 587
Likes: 49
From: Belgium
How much play is acceptable- hei
The video says it all
First I'm spinning it CCW then CW. too much play?
Im still looking for the cause of my idle jumping 50 rpm sometimes.
Anyway, is this too much wear/play?
www.youtube.com/watch?v=W5usgv4yGKM
https://www.youtube.com/watch?v=W5usgv4yGKM&feature=youtu.be
https://youtu.be/W5usgv4yGKM
First I'm spinning it CCW then CW. too much play?
Im still looking for the cause of my idle jumping 50 rpm sometimes.
Anyway, is this too much wear/play?
www.youtube.com/watch?v=W5usgv4yGKM
https://www.youtube.com/watch?v=W5usgv4yGKM&feature=youtu.be
https://youtu.be/W5usgv4yGKM
Last edited by Dusky; Aug 13, 2019 at 05:11 PM.
Burning Brakes
Joined: Sep 2009
Posts: 1,003
Likes: 48
From: hickory NC
C4 of Year Finalist (appearance mods) 2019
2017 C4 of Year Finalist
That needs to be replaced or rebuilt. The up/down, it's trying to climb the cam gear. there looks like an excessive amount of play in it. Probably cheaper and definitely faster to replace it.
Race Director
Joined: Apr 2011
Posts: 11,183
Likes: 3,335
From: North of Toronto - Ontario
HEI are known for excessive end-play
If you hold the rotor down and try wobbling it sideways without letting it climb, there shouldn't be much movement
check this thread, you can shim or ignore
https://www.corvetteforum.com/forums...clearance.html
M
If you hold the rotor down and try wobbling it sideways without letting it climb, there shouldn't be much movement
check this thread, you can shim or ignore
https://www.corvetteforum.com/forums...clearance.html
M
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,851
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Way to much end play clearance, that much climbing will change your timing.
.010 to .015 for aluminum distributors
.005 to .007 for cast Iron distributors.
Funny I just saw a thread on this the other day.... .I have these specks on a poster sign right behind my distributor machine. Pull the distributor and check the end play
Willcox
.010 to .015 for aluminum distributors
.005 to .007 for cast Iron distributors.
Funny I just saw a thread on this the other day.... .I have these specks on a poster sign right behind my distributor machine. Pull the distributor and check the end play
Willcox
Last edited by Willcox Corvette; Aug 13, 2019 at 06:39 PM.
Dr. Detroit
Joined: Mar 2012
Posts: 10,097
Likes: 4,027
From: New Braunfels Texas
The distributor, due to how the orientation of the helic on the camshaft will not allow the distributor to "climb"...........the only time this may happen is during hard deceleration from a very high RPM.
It is still good practice to keep the endplay in spec. I like .010 to .015.
Jebby
It is still good practice to keep the endplay in spec. I like .010 to .015.
Jebby
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo