Vacuum Advance - Mustang Evolution

Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Classic Mustangs



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 04-14-2014, 06:43 PM   #1
Registered Member
Regular
 
ER12883's Avatar
 
Join Date: Aug 2013
Location: Colorado
Region: Colorado
Posts: 679
Vacuum Advance

Hi guys, so I had some time to look into my vacuum situation, and test out my brake booster.

While digging in there, I noticed my vacuum advance was capped off, and not connected to the carb. Can you confirm that this:
Click image for larger version

Name:	ImageUploadedByMustang Evolution1397518795.248933.jpg
Views:	105
Size:	853.3 KB
ID:	153995
should be connected to the carb? It's a pertronix with a flame thrower coil.

By the way, the brake booster tested great, but was hooked up with fuel line that was too small for the fitting, this is what I was dealing with:
Click image for larger version

Name:	ImageUploadedByMustang Evolution1397518885.992215.jpg
Views:	94
Size:	617.6 KB
ID:	153996
No wonder the brakes are hard as a rock, the hose was leaking like a sieve!

Thanks!
Evan
ER12883 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 04-14-2014, 08:03 PM   #2
Registered Member
Regular
 
ER12883's Avatar
 
Join Date: Aug 2013
Location: Colorado
Region: Colorado
Posts: 679
Yeaaaaah, I'm thinking I don't have any advance...well that's gonna effect how it runs!
ER12883 is offline   Reply With Quote
Old 04-14-2014, 09:05 PM   #3
Registered Member
Regular
 
Aggiesrok's Avatar
 
Join Date: Jul 2011
Location: Bryan
Region: Texas
Posts: 1,883
Yeah no advance for sure. You should probably replace all vac lines.

What's your vacuum reading?
__________________
chevy runs deep, Don't step in chevy!

289 - Holley 4150 570cfm; Performer intake; mild cam; MSD HEI; 302 heads; Roller Tips; Hedman Tri-Y headers; H-pipe w/Flowmaster 40's; 9 in posi 3.50; 205/50-17F; 225/50-17R.
Aggiesrok is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 04-14-2014, 09:12 PM   #4
Registered Member
Regular
 
ER12883's Avatar
 
Join Date: Aug 2013
Location: Colorado
Region: Colorado
Posts: 679
Didn't get a measurement on it, but there's another fuel line that was falling apart, so I had leaks everywhere. Not sure how it was running decently. All new lines are in the very near future!
ER12883 is offline   Reply With Quote
Old 04-15-2014, 09:18 AM   #5
Registered Member
Regular
 
Aggiesrok's Avatar
 
Join Date: Jul 2011
Location: Bryan
Region: Texas
Posts: 1,883
You should check all the vac plugs or caps on the intake and carb. I had some of those that looked ok, but were dry rotted and crumbled in my hand. If you have auto, check that one on the intake.
__________________
chevy runs deep, Don't step in chevy!

289 - Holley 4150 570cfm; Performer intake; mild cam; MSD HEI; 302 heads; Roller Tips; Hedman Tri-Y headers; H-pipe w/Flowmaster 40's; 9 in posi 3.50; 205/50-17F; 225/50-17R.
Aggiesrok is offline   Reply With Quote
Old 04-15-2014, 12:16 PM   #6
Registered Member
Regular
 
ER12883's Avatar
 
Join Date: Aug 2013
Location: Colorado
Region: Colorado
Posts: 679
Good call on the trans. I grabbed a bunch of my fittings (PCV, booster valve, etc) and I'm going to run to the parts store and get a bunch of plugs and lengths of line and redo everything while I'm at it.

I also noticed the PCV wasn't hooked up, too. Somehow with all this, I had enough vac to still draw fuel...Sometimes I really wonder about who had this car in the past. Who seriously thought fuel line poorly pushed onto the wrong size barb was gonna cut it?
ER12883 is offline   Reply With Quote
Old 04-15-2014, 04:59 PM   #7
Registered Member
Regular
 
Aggiesrok's Avatar
 
Join Date: Jul 2011
Location: Bryan
Region: Texas
Posts: 1,883
Quote:
Originally Posted by ER12883 View Post
Good call on the trans. I grabbed a bunch of my fittings (PCV, booster valve, etc) and I'm going to run to the parts store and get a bunch of plugs and lengths of line and redo everything while I'm at it.

I also noticed the PCV wasn't hooked up, too. Somehow with all this, I had enough vac to still draw fuel...Sometimes I really wonder about who had this car in the past. Who seriously thought fuel line poorly pushed onto the wrong size barb was gonna cut it?
Good deal


Used car dealers put sawdust in tranny's for temporary smooth shifting years ago. You never know what morons will do to a car.

Since your fuel lines were so bad, you might check the fuel hose where it connects to the fuel sending unit.
__________________
chevy runs deep, Don't step in chevy!

289 - Holley 4150 570cfm; Performer intake; mild cam; MSD HEI; 302 heads; Roller Tips; Hedman Tri-Y headers; H-pipe w/Flowmaster 40's; 9 in posi 3.50; 205/50-17F; 225/50-17R.
Aggiesrok is offline   Reply With Quote
Old 04-15-2014, 07:57 PM   #8
Registered Member
Regular
 
ER12883's Avatar
 
Join Date: Aug 2013
Location: Colorado
Region: Colorado
Posts: 679
Quote:
Originally Posted by Aggiesrok View Post
Good deal


Used car dealers put sawdust in tranny's for temporary smooth shifting years ago. You never know what morons will do to a car.

Since your fuel lines were so bad, you might check the fuel hose where it connects to the fuel sending unit.

Those weren't fuel lines...that was fuel line used as vacuum hose.

Okay so I replaced the PCV, the booster check valve and all hoses. This includes getting the advance line connected to the carb.

Although I didn't have a chance to drive it, I can see the advance is working as it should. Still not sure about the brakes, they feel very firm still, but the proof will be in the pudding when I have time to drive her. I'll keep you posted.
ER12883 is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Classic Mustangs

Thread Tools Search this Thread
Search this Thread:

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 On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Timing advance on race fuel. Blown347 1979-1995 Mustang GT 14 10-30-2012 01:03 AM
Timing Advance Recommendations? Ohdang1990 1979-1995 Mustang GT 5 09-30-2012 11:29 AM
Timing Advance? Nashgizam 1979-1995 Mustang GT 22 01-29-2012 02:48 PM
Timing advance jwhayne0001 1979-1995 Mustang GT 25 11-09-2011 06:55 PM
Advance Trac Ravnus 2011-2014 Mustang GT 12 04-07-2011 06:28 PM

» Like Us On Facebook



01:13 AM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.