The Stovebolt Page Forums Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Links | Events | Features | Search | Hoo-Ya Shop
Grilles for 1934, 35, and 36 GM trucks


To 1934-35 and 1936 GM Truck Customers

A limited number of new grilles have just arrived! They are totally SHOW QUALITY, mirrow-polished, stainless steel. Includes outer reinforcing band, vertical center bars, and special customer fasteners to attach to your outer shell.

LOOK HERE
and see

Limited Quantity!

Old Chevy Trucks.com

Stovebolt Site Search
Old Truck Calendars
2015 Calendars!
12 months of GMC Stovebolts

There are over 10 to choose from.

Check for details!

Who's Online
22 registered (andy_napco, 19491433, 6cylindersovertexas, Brad Allen, BC52, Danthemanmj23), 102 Guests and 5 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
37,092 Registered Members
46 Forums
97,857 Topics
748,781 Posts

Most users ever online: 399 @ Wed Apr 09 2014 10:26 PM
Today's Birthdays
1Low53Burb, BB, Big Pink, Cartman, Chris's 46 / 515, Chucks Chariots, Cliffie, DonGarySan, J.T., Jinman60, JudasUrsus, Michael A. Nixon, MT, Randys_37
Image Posting Policy
Page 4 of 7 < 1 2 3 4 5 6 7 >
Topic Options
#835351 - Wed Mar 14 2012 09:11 PM Re: Climbing Hills? [Re: Lucille]
48jock Offline
New Guy
Registered: Thu Oct 21 2010 07:50 PM
Posts: 20
Loc: Bombay, New York
I had a problem with my truck and no power. I checked the timing and changed the fuel pump with no change. It wound up being the ethanol gas. I put the additive in the tank and fixed the problem.
Top
#835369 - Wed Mar 14 2012 10:02 PM Re: Climbing Hills? [Re: 48jock]
don stocker Offline
Shop Shark
Registered: Wed Nov 29 2006 12:00 PM
Posts: 2666
Loc: osceola, wi
Thinking you have a intake manifold gasket leaking?
Top
#835447 - Thu Mar 15 2012 08:08 AM Re: Climbing Hills? [Re: Lucille]
Kurt_51carryall Offline
Shop Shark
Registered: Sat Aug 27 2011 09:29 PM
Posts: 889
Loc: Raleigh,NC
You might try plugging the wiper port, check the vacuum, and then plug the port going to the vacuum advance, and check the vacuum.

Kurt
Top
#835544 - Thu Mar 15 2012 01:43 PM Re: Climbing Hills? [Re: Kurt_51carryall]
Lucille Offline
Shop Shark
Registered: Tue Oct 23 2007 12:00 PM
Posts: 461
Loc: Murphy, NC
This morning I made an adjustment to the left rear brake pads ( the old hucks). When I had them relined I think the new pads were us a bit too thick. I have very little room for ajustment inwards. Guess I'll just have to wear them in a bit.

On another point I noticed that since I installed the new fuel pump my see thru fuel filter ahead of the carb is totally full of gas. That was never the case before! Maybe I won one battle....

Also this morning I hooked up my vacuum gage and tac so that they are on the inside of the cab.

OK, time to see how things are running!

Time is 11:52 - Start cold engine.
Choke all the way out and then quickly back in to about a 1" after she is running.
Vacuum 19"
RPM 1150
Temp Ambient 67degrees

After one minute slowly pushed choke to about a 1/2" out.
Vacuum 15-16"
RPM 475
Temp <100 degrees

Time is 11:56
Pushed the choke in all the way.
Vacuum 15-16"
RPM 600
Temp 130

Time is 12:00
Vacuum 16-16.5"
RPM 650
Temp 140

Time is 12:05
Vacuum is 17-17.5"
RPM 700
Temp 160

Ride time up the hill in my development.
Time 12:07
Went up hill in second gear. Vacuum drops to 6". Drove through the development and noticed that as I shifted gears the vacuum would drop to 6" (sometimes 0") and then climb to 22". Needle was all over the place.

To be honest with all you folks out there, I don't have a clue about what I am looking at!! Can some explain to me in laymans terms just what this engine vacuum means? Are the fluctuations I'm seeing normal or is it telling me something that is wrong? Its not only vacuum but timing and carburation. What would be the logical approach to getting these under control? Step one...step two...etc.

BTW, when I got back home (only drove her about a mile) I saw that the fuel filter was half empty. I think it will recharge itself after cool down. The other thing I noticed was what appeared to be gas on the outside of the carb. That kind of bother me. I surely don't want an engine fire!

Oh, you know what I just thought as I write this? I haven't checked the vacuum line from the dizzy to the carb. Gotta do that. And also Lucille is being run by a 216. Just an FYI in case no one knew.

I'm exhausted over here!!

Will the "Truck Gods" please help me??
_________________________
"Lucille" ..... Proud Member of the "Southern Stovebolts"

David Wolff
1946 Chevy 1/2-ton
In the Gallery
http://s1145.photobucket.com/albums/o510/Wolffman26/
Top
#835551 - Thu Mar 15 2012 01:58 PM Re: Climbing Hills? [Re: Lucille]
CASO Offline
Shop Shark
Registered: Fri Jun 10 2011 10:16 PM
Posts: 1610
Loc: Warrenton, Oregon
The Vac drop when the throttle opens is normal thumbs_up and then it finds it's new equilibrium so to speak.
Your numbers are more like I would expect, and you should find out about the moisture on the carb... mop it with a kleenex and take it out side and put a match to it... If it poofs you know it isn't water!!!

You didn't really mention how the truck ran up the hill and that's really why I'm writing cause like others watching I want to know if it's any better!
_________________________
Give me ambiguity
or give me something else
Top
#835554 - Thu Mar 15 2012 02:04 PM Re: Climbing Hills? [Re: Lucille]
CASO Offline
Shop Shark
Registered: Fri Jun 10 2011 10:16 PM
Posts: 1610
Loc: Warrenton, Oregon
Originally Posted By: Lucille
as I shifted gears the vacuum would drop to 6" (sometimes 0") and then climb to 22". Needle was all over the place.

To be honest with all you folks out there, I don't have a clue about what I am looking at!!


check this out
Using a Vac Gauge and what it means
_________________________
Give me ambiguity
or give me something else
Top
#835555 - Thu Mar 15 2012 02:07 PM Re: Climbing Hills? [Re: CASO]
jomichael Offline
Shop Shark
Registered: Fri Jul 29 2005 12:00 PM
Posts: 1045
Loc: Vero Beach, Florida
Have you tried putting it 4 wheel drive? Works for me.

Seriously, if you have gas on the outside of the carb, you may have found your problem. How new is your fuel pump?
_________________________
1955.2 Chevy 3100 NAPCO
In the Stovebolt Gallery
Action on You-tube!
Top
#835558 - Thu Mar 15 2012 02:10 PM Re: Climbing Hills? [Re: Lucille]
DADS50 Offline
Shop Shark
Registered: Sun Jan 03 2010 08:15 AM
Posts: 3835
Loc: Nevada
Originally Posted By: Lucille
Time is 11:56
Pushed the choke in all the way.
Vacuum 15-16"
RPM 600
Temp 130

Sounds like you have your fuel delivery issue solved. Thats good

your vacuum reading looks low.
I believe your fast idle should be set at 450 to 500 rmp once the engine is warm.(check your manual)

your vacuum reading should be between 17-21 at that rpm.

Have you put a timing light on it?




_________________________
DADS50

YouTube

1950 3100

Hitchin a ride

.New Pic.
Top
#835559 - Thu Mar 15 2012 02:16 PM Re: Climbing Hills? [Re: DADS50]
CASO Offline
Shop Shark
Registered: Fri Jun 10 2011 10:16 PM
Posts: 1610
Loc: Warrenton, Oregon
Originally Posted By: DADS50
Have you put a timing light on it?

IIRC it was last set @ 6 BTDC
_________________________
Give me ambiguity
or give me something else
Top
#835565 - Thu Mar 15 2012 02:53 PM Re: Climbing Hills? [Re: CASO]
Lucille Offline
Shop Shark
Registered: Tue Oct 23 2007 12:00 PM
Posts: 461
Loc: Murphy, NC
CASO,
I just ran up on hill in my neighborhood. All I had on my mind was reading the gages. I didn't take her out on the run I did yesterday (8 miles). So, your right, I don't know if its better. Will do that now! Also, no I haven't put a timing light on her. Will try and do that later.
_________________________
"Lucille" ..... Proud Member of the "Southern Stovebolts"

David Wolff
1946 Chevy 1/2-ton
In the Gallery
http://s1145.photobucket.com/albums/o510/Wolffman26/
Top
Page 4 of 7 < 1 2 3 4 5 6 7 >

Moderator:  53moneypit, Woogeroo 

Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Links | Events | Features | Search | Hoo-Ya Shop
#-->