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What have you done to your truck today?

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  #7651  
Old 09-26-2012, 08:41 PM
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Originally Posted by Anafiel View Post
Udder?

You live on a farm?
Very much so..5 miles to the nearest oil-top road..Lots of gravel and rocks and hills...Check out the community of Alamo,Ar..Trav..
 
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  #7652  
Old 09-26-2012, 09:06 PM
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Originally Posted by Fordzilla80 View Post
I'm personally expecting an 8-page micro-analysis on the theory of "giving a crap".

Read my lips:

Originally Posted by Boss351Bronco88 View Post
Can we get a Power Point presentation as well? I would like bar graphs, a financial impact chart for the next 5 years, and lots of pictures and big 2 dollar words!
I prefer Microsoft's mate to Powerpoint, which is Excel, when I do bar graphs and financial charts.

So, what did I do to my truck? Started it.
 
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  #7653  
Old 09-26-2012, 09:06 PM
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Originally Posted by Rogue_Wulff View Post
Power point? That some kind of new ammo?
It's a new type of pointing implement. You strap it to your index finger, and a little tiny super power laser points in the same direction as your index finger.
 
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Old 09-26-2012, 09:23 PM
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I didn't do anything to my truck except drive it today. (about 60 miles round trip)

The cruise control wouldn't set on the way home.
I'll check it out tomorrow...?...It WAS working..Trav.
 
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  #7655  
Old 09-26-2012, 11:43 PM
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Originally Posted by Boss351Bronco88 View Post
I'm running a full MSD setup on my Bronco with a 358w. And it works great. Why are you not using the mechanical advance as well? I am, I have it so I have full advance at around 3000rpm. Now, Do you have the bigger black and red wires running direct to the battery? A strange thing with my old MSD 6A box. I actually had to run a ground wire from the body of the box to the truck body for it to work.

Cold starts improved, the overall driving performance, and gas mileage increased for me when I went over to it.
I didn't know you could use the vacuum advance with the mechanical advance. But the good news is that I fixed the timing issue some [email protected]$$ namely myself had the timing off by about 180 but once I got that figured out I was able to crank it up no problem and man it sounds good with that new 4Barrel 570 holley street avenger carb and that edelbrock performer air gap manifold it is now running like a champ thanks to everybody that was giving advice cause I felt lost till I read some of the posts that led me to be able to find the problem.
 
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  #7656  
Old 09-26-2012, 11:46 PM
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Originally Posted by Fordzilla80 View Post
It's a new type of pointing implement. You strap it to your index finger, and a little tiny super power laser points in the same direction as your index finger.
Not a bad idea maybe you should try and patent that.
 
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  #7657  
Old 09-26-2012, 11:52 PM
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Originally Posted by Boss351Bronco88 View Post
I'm running a full MSD setup on my Bronco with a 358w. And it works great. Why are you not using the mechanical advance as well? I am, I have it so I have full advance at around 3000rpm. Now, Do you have the bigger black and red wires running direct to the battery? A strange thing with my old MSD 6A box. I actually had to run a ground wire from the body of the box to the truck body for it to work.

Cold starts improved, the overall driving performance, and gas mileage increased for me when I went over to it.
I would like to know how you use both the vacuum and mechanical advance together. When I read the manual that came with my MSD distributor it said use the vacuum or the mechanical because you have to remove the vacuum advance to install the mechanical advance?
 
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Old 09-27-2012, 12:18 AM
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Almost all distributors used in our trucks, except the new computer controlled ones, have mechanical advance(and some of the computer controlled ones have it too). You cannot have vacuum advance without mechanical advance. Both advances are in the DSII distributors.

Mechanical advance uses weights and springs attached to a plate that moves the rotor forward as rpm increases. This increases advance. Vacuum advance is also attached to this plate. Depending on the amount of vacuum, it may advance more at high vacuum, or it may be controlled by the mechanical side, such as WOT(low vacuum).

Total advance for both is limited by a pin that goes through the moving plate.

Both advances work together and separately depending on engine operating conditions.

On edit: I was just thinking, someone could come up with a vacuum only advance distributor. The biggest fault there is timing would jump around badly as vacuum changes. I can see some severe pinging as a result.
 
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Old 09-27-2012, 07:07 AM
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Originally Posted by BAMAFAN2169 View Post
I didn't know you could use the vacuum advance with the mechanical advance. But the good news is that I fixed the timing issue some [email protected]$$ namely myself had the timing off by about 180 but once I got that figured out I was able to crank it up no problem and man it sounds good with that new 4Barrel 570 holley street avenger carb and that edelbrock performer air gap manifold it is now running like a champ thanks to everybody that was giving advice cause I felt lost till I read some of the posts that led me to be able to find the problem.
Glad you got that sorted. It is a good feeling when it all falls into place, even when you've been the reason it wasn't. At least it is for me and I have lot of practice.
 
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Old 09-27-2012, 07:21 AM
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What have you done to your truck today?

Originally Posted by BAMAFAN2169 View Post
I would like to know how you use both the vacuum and mechanical advance together. When I read the manual that came with my MSD distributor it said use the vacuum or the mechanical because you have to remove the vacuum advance to install the mechanical advance?
If that is what you have to do, it reinforces my opinion of MSD stuff. Every engine built since some time in the 30s until computer controls came along, with the exception of high performance engines had what is referred to as "dual advance" distributors.

The mechanical advance curve is tailored to the maximum advance the engine can use under load, the vacuum advance curve is tailored to the maximum advance the engine can use under light load. The purpose of the vacuum advance is fuel economy.

I just looked at the instructions, I don't see that one requires removal for the other. It is a GM style design with easy to adjust mechanical advance. The instructions state that the vacuum advance adds 10 degrees to the curve when the vacuum signal is applied.
 

Last edited by 85lebaront2; 09-27-2012 at 07:32 AM. Reason: Additional information added.
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Old 09-27-2012, 07:09 PM
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It may be a dual advance distributor. I have very limited knowledge on the ignition side of mechanic work. I normally just have to change bolt in non-adjustable parts but I'm mechanically inclined so I always try and learn knew things that can help me out now and/or later. As far as my distributor having a dual advance I guess it might because it does have the springs on it along with what I am guessing are little circular weights.
 
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Old 09-27-2012, 07:13 PM
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I drove it!
 
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Old 09-27-2012, 07:14 PM
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Originally Posted by Gary Lewis View Post
Glad you got that sorted. It is a good feeling when it all falls into place, even when you've been the reason it wasn't. At least it is for me and I have lot of practice.
It was awesome hearing the engine fire up and start purring. It is acting so much better than I thought it ever would. It'll run like a scalded dog and still beg for more!!
 
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Old 09-27-2012, 08:00 PM
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What have you done to your truck today?

Originally Posted by BAMAFAN2169 View Post
It may be a dual advance distributor. I have very limited knowledge on the ignition side of mechanic work. I normally just have to change bolt in non-adjustable parts but I'm mechanically inclined so I always try and learn knew things that can help me out now and/or later. As far as my distributor having a dual advance I guess it might because it does have the springs on it along with what I am guessing are little circular weights.
The springs and circular weights up top are the mechanical or centrifugal advance, the vacuum can is the other. Dual advance means both centrifugal and vacuum. Pur centrifugal is used on performance engines and industrial engines. Ford used a purely vacuum system built by Holley caled a load-a-matic system. It used venturii and ported vacuum to control spark advance.
 
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  #7665  
Old 09-27-2012, 10:05 PM
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Originally Posted by BAMAFAN2169 View Post
I didn't know you could use the vacuum advance with the mechanical advance. But the good news is that I fixed the timing issue some [email protected]$$ namely myself had the timing off by about 180 but once I got that figured out I was able to crank it up no problem and man it sounds good with that new 4Barrel 570 holley street avenger carb and that edelbrock performer air gap manifold it is now running like a champ thanks to everybody that was giving advice cause I felt lost till I read some of the posts that led me to be able to find the problem.
I think I might have done that too once. I troubleshot another members issue that was 180 out. Some people dont know enough about the way motors work to know the cam turns once to every two rotations of the crank. I used to think anytime the #1 piston was all the way up it was TDC and time it from there. However, there is compression and exhaust strokes for TDC. After I figured that out my problem was obvious.
 
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