Hot Rod Forum : Hotrodders Bulletin Board - Reply to Topic
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine> 383 hesitation
User Name
Password
lost password?   |   register now

Thread: 383 hesitation Reply to Thread
Title:
  
Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
11-30-2012 05:41 PM
jaw22w Update: I jetted the carb up to 76 on the primary and changed the primary nozzle from .035 to .040. It was nice out today, so I took the roadster for a ride. These changes got rid of the hesitation and the bucking or surging. Don't know which change helped, but the car runs like a raped ape now. Again, thanks to Cobalt327 and Custom10 for all the help. I am very happy with the results.
11-27-2012 11:42 PM
Custom10
Quote:
Originally Posted by jaw22w View Post
It's late. I'm going to bed. Just wanted to say that I cannot express my appreciation for all the time Cobalt327 and Custom10 have put in on my problems today. Thanks for your patience with me.
Thanks,
Jim
Jim it was my pleasure, patience was all yours sir, looks like a good build situation once again
11-27-2012 11:37 PM
jaw22w Custom10, I brought up the vac adv question because White performance told me not to use it. I wanted some confirmation from some of the expertise I knew was on this forum. I have always run my circle track race motors at 34* total with no vac adv and the advance numbers seemed very high to me with vac adv. This new motor was a large investment for me and I didn't want to burn it up. I have seen the results of too much timing in race motors. UGLY!
11-27-2012 11:31 PM
Custom10
Quote:
Originally Posted by cobalt327 View Post
Just wanted to say I'm always glad to see you here when things about the adjustable vacuum advance, etc. comes up. Good job w/all that.
Roger that, cheers mr.
11-27-2012 11:27 PM
jaw22w It's late. I'm going to bed. Just wanted to say that I cannot express my appreciation for all the time Cobalt327 and Custom10 have put in on my problems today. Thanks for your patience with me.
Thanks,
Jim
11-27-2012 11:25 PM
Custom10
Quote:
Originally Posted by jaw22w View Post
Trying to post a picture
OK that is 1000 words, stoped on the can side of the rod travel. OP you seem to have a good handle on timing, I am wondering why U would mention not to hook up the vacuum advance when U have spent so much time on that gizmo? nice job by the way.
11-27-2012 11:14 PM
cobalt327
Quote:
Originally Posted by Custom10 View Post
Look I have spent allot of time on this **** and your thread. How does the limiter plate come in contact with the rod? If it raises the rod in towards the can in a static no vacuum condition then it also moves the reluctor each time it is adjusted. If it comes in contact with the canister rod on the can side then it does nto change the relucktor position when adjusted.

I asked you how 14 deg, so this method of yours contacts the rod in what fashion, by pushing the rod towards the can in a static position or by stopping the rod travel at the far end? help me out here
Just wanted to say I'm always glad to see you here when things about the adjustable vacuum advance, etc. comes up. Good job w/all that.
11-27-2012 11:00 PM
jaw22w Cobalt327, OK I think I got it. I just scanned the Holley instructions. They definitely deserve a good read.
Thanks
Jim
11-27-2012 10:48 PM
cobalt327 Posting photos: http://www.hotrodders.com/forum/how-...om-210091.html
Edit- just saw you figured it out.

Pump free play at WOT:

Basically, you want zero play at rest, foot off the gas pedal.

With the throttle opened wide open, there has to be about 0.015" play so the pump diaphragm isn't damaged from the linkage over-traveling.

The adjustment is made using the small bolt/spring that contacts the pump arm and a feeler gauge (see below). This photo is one that shows the feeler, etc. good, but the adjustment bolt and nut are upside down plus don't look to be original (shouldn't be slotted). Assembled correctly, the adjuster nut, bolt, and spring should look like the second photo.

Holley's instructions on the shooter and cam are on page 6 and 7, here.



11-27-2012 10:43 PM
jaw22w That was so much fun,I think I'll post a picture of my car. Completely built from scratch at home.
11-27-2012 10:35 PM
jaw22w yeah! got it figured out now.
11-27-2012 10:33 PM
jaw22w Trying to post a picture
11-27-2012 10:14 PM
jaw22w the adjustment bolt is between the upturned end of the rod and the can. The bolt is parallel to the long portion of the vacuum rod. As the vacuum comes in and the upturned end of the rod moves toward the can, the bolt contacts the upturned end of the rod and stops its movement, thus limiting the amount of advance. I hope this makes sense. I have attempted to post a picture, but was unsuccesful. I will work on it.
11-27-2012 10:07 PM
Custom10 No problem old dog Jim

TJ
11-27-2012 10:06 PM
jaw22w I guess not yet.
This thread has more than 15 replies. Click here to review the whole thread.

Posting Rules
You may post new threads
You may 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 -6. The time now is 08:42 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.