TIM or Assembly manual
03-02-2017, 08:15 AM
#1
Instructor
Thread Starter
TIM or Assembly manual
when the 2 have a slight conflict which would you go by? a 350/300 with a/c uses a 3937771 fan clutch, for 427. but a 5 blade fan. according to the assembly manual. which direction would you use?
V/R
Charlie
V/R
Charlie
03-02-2017, 08:19 AM
#2
Team Owner
Member Since: Sep 2006
Location: Westminster Maryland
Posts: 30,173
Likes: 0
Received 2,878 Likes
on
2,515 Posts
Hi B,
I really don't understand what you're asking? 350? 427? Clutch? Fan? Direction?
Regards,
Alan
I really don't understand what you're asking? 350? 427? Clutch? Fan? Direction?
Regards,
Alan
Last edited by Alan 71; 03-02-2017 at 08:23 AM.
03-02-2017, 09:28 AM
#5
Team Owner
Member Since: Jun 2000
Location: Southbound
Posts: 38,928
Likes: 0
Received 1,469 Likes
on
1,248 Posts
Cruise-In II Veteran
03-02-2017, 09:35 AM
#6
Team Owner
The basic drawings in the AIM represent a 'base engine' car. You need to refer to the OPTIONS section for the optional engine (BB) to see what that engine has on it.
03-02-2017, 10:22 AM
#8
Instructor
Thread Starter
the assembly manual has numbers for the base motor and another set of numbers for the a/c option. Online those numbers are marketed for the 427 motor. My question is do I follow the assembly manual
03-02-2017, 11:03 AM
#9
Team Owner
Member Since: Jun 2000
Location: Southbound
Posts: 38,928
Likes: 0
Received 1,469 Likes
on
1,248 Posts
Cruise-In II Veteran
Check the AIM again. It's possible the AC fan and clutch could have been used on both engines (SB and BB), same as the radiator, shroud, and possibly other parts.
03-02-2017, 11:14 AM
#10
the December 1983 Parts and Illustration Catalog shows only one fan clutch part number for all Corvettes 1968 to 1970 and I assume the OP has a 1969 , Clutch Fan 3916141
03-02-2017, 11:29 AM
#11
Team Owner
Member Since: Sep 2006
Location: Westminster Maryland
Posts: 30,173
Likes: 0
Received 2,878 Likes
on
2,515 Posts
Hi,
The correct clutch/fan combination is tricky to determine because it came to the production line as an 'assembly'.
Therefore, the number given in the AIM which is for the ASSEMBLY won't be the number stamped on the clutch or stamped on the fan.
Regards,
Alan
The correct clutch/fan combination is tricky to determine because it came to the production line as an 'assembly'.
Therefore, the number given in the AIM which is for the ASSEMBLY won't be the number stamped on the clutch or stamped on the fan.
Regards,
Alan
Last edited by Alan 71; 03-02-2017 at 11:30 AM.
03-02-2017, 12:20 PM
#12
Instructor
Thread Starter
I ran the production assembly number and the other numbers listed as opt. They came up on the internet as a fan with an eaton style clutch without a/ c. Any other research I've done says 7 blade fan, same as the BB, with the 3937771. Schweitzer clutch. As it says on the a/ c option page in the assembly manual.
03-02-2017, 12:30 PM
#13
Team Owner
Member Since: Jun 2000
Location: Southbound
Posts: 38,928
Likes: 0
Received 1,469 Likes
on
1,248 Posts
Cruise-In II Veteran
03-02-2017, 12:53 PM
#14
Instructor
Thread Starter
This was the best part of the car that was modified. The block is good but too many people had their hands in it over the years. One of which had swapped out parts for junk. I lost in court because I couldn't legally prove it.