Go Back   Corvette Forum > C3 Corvettes, 1968 - 1982 > C3 Tech/Performance
Sign in using an external account
Register Forgot Password?
Register Search Today's Posts Mark Forums Read FAQ Vendor Directory
Search
C3 Tech/Performance
V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette Sponsored by
VBP

Welcome to Corvetteforum.com!
Welcome to Corvetteforum.com.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join Corvetteforum.com today!


Corvette Store
 
 
C7 Parts & Accessories
C6 Parts & Accessories
C5 Parts & Accessories
C4 Parts & Accessories
C3 Parts & Accessories
C2 Parts & Accessories
C1 Parts & Accessories
Wheels & Tires
Sponsored Ads
 
 
Vendor Directory
  
Reply
 
 
 
 
Thread Tools Search this Thread
Old 10-09-2011, 11:08 PM   #1
71corvette
CF Member
 
Member Since: Sep 2004
Location: Phoenix Arizona
Default Distributor Advance Curve Kit - Mr Gasket

Today I installed a Mr. Gasket Advance Curve Kit (mrg927g) on my 1971 Corvette. The instructions were OK but they didn't provide any information about the advance curve you would receive by using the enclosed black, silver, and gold springs. Nevertheless, I installed the enclosed centrifugal weights and started with the black springs. When I checked the timing, it wouldn't advance at all. After removing the distributor rotor to see what was going on, I discovered that the Mr. Gasket weights were made too big and they actually butted up against the square locating pin of the rotor. After comparing the original weights with the Mr. Gasket weights, it was easy to see that the original weights were made thinner especially where they fit around the distributor shaft. Just to make sure, I weighed each weight both from the Mr. gasket set and the originals and they weighed the same @ .6 of an ounce. So, I used the original weights and the Mr. Gasket springs. It turned out that even with the strongest springs from Mr. Gasket, all of the centrifical advance was in by 2000 rpm. Basically, I wasted money buying this kit as nothing worked as advertised. I found some original GM lighter springs and used them. This worked out well as now all of the centrifugal advance comes in right about 2900 - 3000 rpm. I am posting this note so that others thinking about using the Mr. Gasket kit won't waste their money.
71corvette is offline   Reply With Quote
Old 10-10-2011, 03:04 AM   #2
Solid LT1
CF Senior Member
 
Solid LT1's Avatar
 
Member Since: Dec 2003
Location: Fremont CA
Default

Mr Gasket parts like this have been made in China for over 10 years now, pure JUNK! MSD uses same weights in their distributors and they have decent kits or Mallory might have something still. Also ISKY cams had a great kit but, I haven't looked for one of those in over 20 years and they may be gone from their catalog now, MSD is your best bet.

MSD kit springs only: http://www.summitracing.com/parts/MSD-8464/

Mallory kit: http://store.prestoliteperformance.c...s-dist-v8.html
Solid LT1 is offline   Reply With Quote
Old 10-10-2011, 09:13 AM   #3
Faster Rat
CF Senior Member
 
Member Since: May 2009
Default

Hear ya brother. I tried all the springs in the 928G kit and in different combinations with no luck. What I noticed was they were all advancing at idle and coming all in way too early. Went back to the original stock springs. I sure wish somebody around here had a Sun machine and lots of original weights and springs because I don't like trying to set up the distributor correctly in the car.
Faster Rat is offline   Reply With Quote
Old 10-10-2011, 09:33 AM   #4
Ganey
CF Senior Member
 
Ganey's Avatar
 
Member Since: Apr 1999
Location: CORVETTE 77 385 C.I. TEXAS
Default

That's one of the things I did first on my first car as part of I call supertuning. The weights were bad then & not used. The springs worked. You can use one spring from different pairs.
__________________
GANEY

CORVETTE 77 385CI 6.3L Hi-Perf. FE-7 Sus.
GANEY Corvette Forum Site BB/SB Comp Cams Edelbrock RPM Holley DP Dynomax
www.kcm.org
Ganey is offline   Reply With Quote
Old 10-10-2011, 09:59 AM   #5
blackbeauty74
CF Senior Member
 
blackbeauty74's Avatar
 
Member Since: Apr 2004
Location: greenville sc
Default

Do any of you know of any places that you can send your distributor off to have it recurved?
blackbeauty74 is offline   Reply With Quote
Old 10-10-2011, 10:52 AM   #6
MelWff
CF Senior Member
 
MelWff's Avatar
 
Member Since: May 2006
Location: Danbury CT
Default

this article covers most of the kits

http://www.arkansaspontiacs.org/tech...s/recurve.html
MelWff is offline   Reply With Quote
Old 10-10-2011, 01:57 PM   #7
bigvette1
CF Senior Member
 
Member Since: Jan 2002
Location: Schaumburg IL
Default

Interesting that same problem with Mr Gasket has been around for quite a lot of time. Probably when they went to China.

The current issue of Popular Mechanics has an interesting article by Jay Leno on saving American tools namely the distributor advance testing machine.
bigvette1 is offline   Reply With Quote
Old 10-10-2011, 01:57 PM
 
Go Back   Corvette Forum > C3 Corvettes, 1968 - 1982 > C3 Tech/Performance
Reload this Page Distributor Advance Curve Kit - Mr Gasket
 
 
 
Reply

Tags
3000, advance, black, c3, corvette, curve, distributor, distributr, gasket, kit, mallory, mr, silver, springs, work


Thread Tools Search this Thread
Search this Thread:

Click for Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -4. The time now is 01:17 AM.


Emails & Password Backup

Search Engine Friendly URLs by vBSEO 3.5.2