Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Media
New media
New comments
Search media
Members
Registered members
Member Map
Current visitors
Tutorials
Engine, Transmission, Drive Line, Diff, etc...
Exterior, Body, Chassis & Paint
Interior Restoration
Brakes & Suspension
Electrical & Lighting
Presentation, Polish & Detailing
General Maintenance & Repair
Misc Tutorials
Forum Tutorials
7173 Wiki
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Tech Forums
Engine, Transmission, Drive Line, Etc
1972 351c 2v, intermediate start/rough running
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support 7173Mustangs.com:
Message
<blockquote data-quote="Jaysay" data-source="post: 402312" data-attributes="member: 7909"><p>Hey this is my first post on this forum, I’ve posted this issue in another and they’ve helped but it’s been several weeks and ideas are starting to run thin. I’ll list off everything I can remember doing an confirmed is correct.</p><p></p><p>I have a 72 mustang with a 351c 2v project that was my fathers, he bought it back in 73 and it sat in a shed for about 25years after he swapped vehicles. Did some work on it about 8years ago an got it running, then it went back in the shed until earlier this year when i moved it to my own house. It has 93,000miles with a very detailed book of everything he’s done to it. Since i began work again i got it running with a new fuel tank an deep carb cleaning. Ran great and was doing general maintenance on it getting it road ready. Until one day it just decided it didn’t want to start. It would crank strong and when it would start it would run very rough almost shaking, then die. The following is everything i can think of that’s been done to it:</p><p>Carb Rebuild, fuel tank, fuel lines, fuel filters</p><p>Spark Plugs, wires, points, condenser</p><p>Oil, antifreeze, water pump, coolant lines</p><p>Vacuum lines, starter an solenoid.</p><p></p><p>Things I’ve checked:</p><p>2.Carb was cleaned several times very well</p><p>3.Checked for Vacuum Leaks</p><p>4.Pulled distributor and checked for correct placement, it is set at #1cyl TDC.</p><p>5.I have initial timing set to 12 degrees, it was 6degrees but was told most like them advanced more and it did like it.</p><p>6.Points gap checked an confirmed at .17 (might confirm that’s in the ballpark)</p><p></p><p>Feel like I’m forgetting a few things still. But the issue has been intermediate. Yesterday is when i pulled the distributor an checked for correct placement, after getting everything set up, the car fired up immediately with no issue. I let it warm up, then played with the initial timing. Got it sounding great, ran incredibly smooth and advancing it really helped. After that, i went out a little while later to reconfirm timing and finish putting stuff back together, ran great at that time too. Then an hour after that, went to check dwell and idle speed, an it went right back to hard starting. It sounds like it has no fire, but if i give it half throttle it’ll kind of start to pick up an sometimes it’ll start with no throttle but run rough. And then if i leave it be for a day or so, it might be the same or it might fire up like it never had an issue. That’s what throws me off the most, and has me leaning towards electrical. Sorry for the long post, but wanted to get all the info i could to you. Thanks in advance for any advice you might have. </p><p></p><p>Also, forgot to add that when it starts an runs good, i can rev it, make adjustments and probably let it sit an run until the fuel tank is empty. Never has any issue once it’s running right, only happens randomly after shutting it off.</p></blockquote><p></p>
[QUOTE="Jaysay, post: 402312, member: 7909"] Hey this is my first post on this forum, I’ve posted this issue in another and they’ve helped but it’s been several weeks and ideas are starting to run thin. I’ll list off everything I can remember doing an confirmed is correct. I have a 72 mustang with a 351c 2v project that was my fathers, he bought it back in 73 and it sat in a shed for about 25years after he swapped vehicles. Did some work on it about 8years ago an got it running, then it went back in the shed until earlier this year when i moved it to my own house. It has 93,000miles with a very detailed book of everything he’s done to it. Since i began work again i got it running with a new fuel tank an deep carb cleaning. Ran great and was doing general maintenance on it getting it road ready. Until one day it just decided it didn’t want to start. It would crank strong and when it would start it would run very rough almost shaking, then die. The following is everything i can think of that’s been done to it: Carb Rebuild, fuel tank, fuel lines, fuel filters Spark Plugs, wires, points, condenser Oil, antifreeze, water pump, coolant lines Vacuum lines, starter an solenoid. Things I’ve checked: 2.Carb was cleaned several times very well 3.Checked for Vacuum Leaks 4.Pulled distributor and checked for correct placement, it is set at #1cyl TDC. 5.I have initial timing set to 12 degrees, it was 6degrees but was told most like them advanced more and it did like it. 6.Points gap checked an confirmed at .17 (might confirm that’s in the ballpark) Feel like I’m forgetting a few things still. But the issue has been intermediate. Yesterday is when i pulled the distributor an checked for correct placement, after getting everything set up, the car fired up immediately with no issue. I let it warm up, then played with the initial timing. Got it sounding great, ran incredibly smooth and advancing it really helped. After that, i went out a little while later to reconfirm timing and finish putting stuff back together, ran great at that time too. Then an hour after that, went to check dwell and idle speed, an it went right back to hard starting. It sounds like it has no fire, but if i give it half throttle it’ll kind of start to pick up an sometimes it’ll start with no throttle but run rough. And then if i leave it be for a day or so, it might be the same or it might fire up like it never had an issue. That’s what throws me off the most, and has me leaning towards electrical. Sorry for the long post, but wanted to get all the info i could to you. Thanks in advance for any advice you might have. Also, forgot to add that when it starts an runs good, i can rev it, make adjustments and probably let it sit an run until the fuel tank is empty. Never has any issue once it’s running right, only happens randomly after shutting it off. [/QUOTE]
Insert quotes…
Verification
Post reply
Tech Forums
Engine, Transmission, Drive Line, Etc
1972 351c 2v, intermediate start/rough running
Join the conversation!
Register today and take advantage of membership benefits.
It's FREE!
Participate in both public and private conversations with people that share your interest
Start new threads
See less ads
Enter your email address to join:
Thank you! Please check your email inbox to continue.
There's already a member associated with this email address. Please
log in
or
retrieve your password
.
Already a member?
Click here to log in
Don't like ads?
Did you know that registered members can turn off the ads?
Register today and take advantage of membership benefits.
Enter your email address to join:
Thank you! Please check your email inbox to continue.
There's already a member associated with this email address. Please
log in
or
retrieve your password
.
Already a member?
Click here to log in
Top
