Q-500 Racing Discuss AMA 428, AMA 424, and any other variants of Quickie 500 racing

Jett SS .40 426 motor

Reply
Old 05-11-2011, 05:56 PM
  #1
daven
Thread Starter
 
Join Date: Dec 2001
Location: Waseca, MN
Posts: 8,452
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Jett SS .40 426 motor

I got a new motor and want to swap the venturi out for a barrel carb.

Having a heck of a time getting the bolt / nipple out. Nut comes off, nipple comes off, but can't get the main bolt out...

Any ideas? Tried Dub today, but got his machine.
daven is offline  
Reply With Quote
Old 05-11-2011, 06:08 PM
  #2
Randy Etken
 
Randy Etken's Avatar
 
Join Date: Aug 2002
Location: Shakopee, MN
Posts: 391
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Jett SS .40 426 motor

Hi Dave
The Jett is different than the Nelson, take nut off and take the venturi out. The bolt will now come out.
Randy
Randy Etken is offline  
Reply With Quote
Old 05-11-2011, 06:44 PM
  #3
Kevin Matney
 
Kevin Matney's Avatar
 
Join Date: Nov 2003
Location: Erie, MI
Posts: 518
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Jett SS .40 426 motor

What props are you running
Kevin Matney is offline  
Reply With Quote
Old 05-11-2011, 07:00 PM
  #4
Randy Etken
 
Randy Etken's Avatar
 
Join Date: Aug 2002
Location: Shakopee, MN
Posts: 391
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Jett SS .40 426 motor

8.8X8.75 or on a very warm day try 8.8X8.5. Want your ground RPM's high 18,000 to low 19,000.
Randy Etken is offline  
Reply With Quote
Old 05-11-2011, 07:29 PM
  #5
daven
Thread Starter
 
Join Date: Dec 2001
Location: Waseca, MN
Posts: 8,452
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Jett SS .40 426 motor

Thanks Randy, just what I needed.
daven is offline  
Reply With Quote
Old 05-13-2011, 11:06 AM
  #6
ptxman
 
Join Date: Jul 2002
Location: Calgary, AB, CANADA
Posts: 395
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Jett SS .40 426 motor

We have to run the carb for our rules. I was wondering if anyone is having adverse (air leak) issues with no o-ring or gasket material under the carb? I noticed there wasn't one under the venturi either - just relying on the fit?
ptxman is offline  
Reply With Quote
Old 05-13-2011, 05:37 PM
  #7
cbk07
 
Join Date: Dec 2001
Location: farmington, CT
Posts: 607
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Jett SS .40 426 motor

The fuel actually comes in under the carb. The carb is really just an air valve allowing the engine to be choked off to kill. Don't think that no air seal around the carb or venturi is an issue at all
cbk07 is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

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



All times are GMT -8. The time now is 12:31 AM.