73 Grande Restoration
#21
(02-04-2018, 06:04 AM)Mustangmike Wrote: Sounds like a good plan.  If you are going to re-use your sending unit you should probably consider replacing the sock based on all the rust in the tank.  Also, be sure to pick up a new rubber seal.  Here are a few links.

http://restorationpartssource.com/store/...bNEALw_wcB

https://www.cjponyparts.com/california-p...K7EALw_wcB

You can probably get these parts at one place to save on shipping.

Thanks for the tip! I'll replace it if the filter is discolored/dirty! most likely will anyways cause its 5 bucks  Laughing
Reply
#22
Just got more photos of the concerning parts of the engine bay.
       
Seriously, what is this thing? I think its the idle stop thingy that brings up the idle when the ac is on
Then this is scary. This weekend I should be working on the car again, so im gonna find out if its the block or not. I hope not!!
           
Reply
#23
(01-30-2018, 09:54 AM)Mustangmike Wrote: JTS is right... for the amount of time you spend and product you buy to do the job right you could have one delivered and installed by the weekend.

While we're are on the subject, I picked up one of these inspection cameras from Harbor Freight to peek into my gas tank. The Fairlane tanks are about triple the price of a Mustang tank so it makes sense for me use the original one.  With this camera you can really see what's going on inside the tank.   It is a great tool to have laying around the garage.  I used it to see where the linkage on my door handles connect.  It is also great to have for cowl inspections.  Bring it with you when you go to look at an old car and then you can really drive the price down!

https://www.harborfreight.com/digital-in...61839.html

As you know Harbor Freight offers 20% coupon so I paid $60 bucks for it.

I had an inspection camera laying around. put new gas in the tank, drained it again. gas came out clean. Stuck the camera in there thru the gas cap spot, and it looks alot better than i thought. Perhaps it was just rust that fell off the bottom of the tank when I was dicking around with the car.
UPDATE: car starts right away, idles funny though.
Reply
#24
Looks like the radiator hose and/or thermostat housing have been leaking for a long time.  More new parts are probably in order.  As far as idles funny, that could be a lot of things, i.e. one or more cylinders misfiring because a major tune up is in order, vacuum leak, carburetor needing to be rebuilt, a lifter sticking.  Hopefully it's nothing major.  Have you done a compression test to get an idea of the integrity of the motor?

To the best of my knowledge, that solenoid attached to the side of the carburetor increases the idle speed when the A/C is turned on.
Reply
#25
(02-06-2018, 02:42 PM)1969_Mach1 Wrote: Looks like the radiator hose and/or thermostat housing have been leaking for a long time.  More new parts are probably in order.  As far as idles funny, that could be a lot of things, i.e. one or more cylinders misfiring because a major tune up is in order, vacuum leak, carburetor needing to be rebuilt, a lifter sticking.  Hopefully it's nothing major.  Have you done a compression test to get an idea of the integrity of the motor?

To the best of my knowledge, that solenoid attached to the side of the carburetor increases the idle speed when the A/C is turned on.
I have the replacement hoses and thermo housing, the engine sounds good, but the rpm bounces up and down. Carb was previously rebuilt. Haven't done a compression check yet
Reply
#26
Is it an inconsistent idle?  If so, it can be a number of issues with the carburetor or vacuum.  How long ago was the carburetor rebuilt?
Reply
#27
(02-07-2018, 09:28 PM)Mustangmike Wrote: Is it an inconsistent idle?  If so, it can be a number of issues with the carburetor or vacuum.  How long ago was the carburetor rebuilt?

Yes the idle goes up and down. The carb was rebuilt 4 years ago, but the inside is Really clean, and all the parts seem to still move freely.
Reply
#28
First look for vacuum leaks, cracked hoses, loose intake manifold and carb mounting bolts.  The power brake booster is also a common source for vacuum leaks on older cars.  If the issue still persists I wouldn't hesitate to rebuild the carb.  It's a simple Autolite 2 barrel carb.  Replace the float when rebuilding the carb and also check and replace as needed any vacuum operated dashpots attached to the carb (if it has any)

Have you tried simply adjusting the carburetor idle air fuel mixture screws?  If that helps, If it were mine, I would still rebuild the carb, install a new float, and also check and replace as needed any vacuum operated dashpots attached to the carb (if it has any).
Reply
#29
Mike (1969 Mach 1) just about covers everything.  I pulled my shop manual and it mentions checking for a restricted PCV.   Other things might be a sticking fuel inlet needle, incorrectly installed throttle plates, improperly adjusted or defective dashpot (like Mike mentioned) to name a few.

It also mentions excessive looseness of the throttle shaft in bores of the throttle body.  I know this can cause a vacuum leak and often overlooked or not corrected during a rebuild.

Like Mike mention, check the simple stuff first like vacuum leaks and the PCV before tearing into the carburetor.  Out of curiosity do you know who rebuilt the carburetor?
Reply
#30
(02-08-2018, 03:49 AM)1969_Mach1 Wrote: First look for vacuum leaks, cracked hoses, loose intake manifold and carb mounting bolts.  The power brake booster is also a common source for vacuum leaks on older cars.  If the issue still persists I wouldn't hesitate to rebuild the carb.  It's a simple Autolite 2 barrel carb.  Replace the float when rebuilding the carb and also check and replace as needed any vacuum operated dashpots attached to the carb (if it has any)

Have you tried simply adjusting the carburetor idle air fuel mixture screws?  If that helps, If it were mine, I would still rebuild the carb, install a new float, and also check and replace as needed any vacuum operated dashpots attached to the carb (if it has any).

Haven't gotten around to playing with the screws
Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
Lightbulb 1971 Mach 1 Restoration Project iglo1234 13 16,465 12-16-2017, 03:40 PM
Last Post: Steven Harris
  '71 M-Code Mach 1 Restoration jrpav 68 76,778 01-08-2017, 04:14 AM
Last Post: jrpav
  72 Mach 1 restoration Juedu2 109 122,016 01-23-2016, 01:29 AM
Last Post: Juedu2
  1972 Mach 1 Race Restoration for Tarmac Rally Peter Winn 12 16,782 04-27-2014, 02:44 PM
Last Post: Steven Harris
Exclamation Bought a 1972 Coupe/Grande Mach 1 Club 7 9,061 03-12-2014, 08:42 AM
Last Post: Mustangmike
  A few pics on my 73 Mach 1 restoration spacedawg 20 22,983 01-28-2014, 08:12 AM
Last Post: Rare Pony
  72 Mach1 Restoration Project apophis3d 8 12,638 07-21-2012, 01:44 PM
Last Post: apophis3d
  my 1971 351 Boss restoration abuloop 67 74,336 07-17-2012, 02:31 AM
Last Post: abuloop
Shocked 1971 Mach 1 Restoration Kuwait shesha 21 24,797 04-04-2012, 01:11 PM
Last Post: Steven Harris
  1973 Mach 1 restoration process(more 6) spacedawg 4 7,122 01-31-2012, 01:50 AM
Last Post: Mach 1 Club

Forum Jump:


Users browsing this thread: 1 Guest(s)
[-]
Latest Threads
About to paint my car: Video
Last Post: Jonner B
Today 08:01 AM
» Replies: 0
» Views: 36
Member Meets
Last Post: BLACK JADE 69
Yesterday 11:29 PM
» Replies: 21
» Views: 13924
Premium Gas - Yes or No?
Last Post: 1969_Mach1
09-15-2019 03:01 PM
» Replies: 11
» Views: 227
1970 MUSTANG MACH 1 WORLD REGISTRY BOOK
Last Post: Raytags
09-12-2019 01:23 AM
» Replies: 0
» Views: 94
1970 FORD MUSTANG STEERING COLUMN SHROUD...
Last Post: Raytags
09-12-2019 01:14 AM
» Replies: 0
» Views: 88
1970 FORD MUSTANG STEERING COLUMN SHROUD...
Last Post: Raytags
09-12-2019 01:08 AM
» Replies: 0
» Views: 89
"Jacobra"
Last Post: JTS71 Mach1
09-10-2019 11:35 PM
» Replies: 72
» Views: 40518
My 'Racewars' Thread
Last Post: Steven Harris
09-10-2019 01:37 PM
» Replies: 33
» Views: 22545
My trailer project - B M B Q
Last Post: Steven Harris
09-10-2019 01:31 PM
» Replies: 49
» Views: 36254
Been Awhile... '71 Rustang
Last Post: Steven Harris
09-10-2019 01:23 PM
» Replies: 154
» Views: 142415
Just my Mach 1
Last Post: Steven Harris
09-10-2019 01:19 PM
» Replies: 7
» Views: 523
New member
Last Post: Steven Harris
09-10-2019 01:16 PM
» Replies: 3
» Views: 343
putting on doors
Last Post: JTS71 Mach1
09-06-2019 11:35 AM
» Replies: 15
» Views: 12368
What Spark plug
Last Post: ProblemChild54
09-01-2019 11:22 AM
» Replies: 2
» Views: 322
Wheel and tire spacing.
Last Post: Jonner B
08-31-2019 06:54 AM
» Replies: 10
» Views: 1162
Disc brake iissues
Last Post: JTS71 Mach1
08-30-2019 09:37 AM
» Replies: 7
» Views: 1077
Shoulder Harness
Last Post: 1969_Mach1
08-30-2019 04:36 AM
» Replies: 4
» Views: 399
Painting my Mach 1
Last Post: Jonner B
08-22-2019 10:50 AM
» Replies: 8
» Views: 980
Won't go
Last Post: ProblemChild54
08-18-2019 10:44 PM
» Replies: 8
» Views: 1307
No reverse lights
Last Post: Jonner B
08-18-2019 10:37 PM
» Replies: 2
» Views: 846

>