78 b600 361swap to 429? - Page 2 - Ford Truck Enthusiasts Forums

Notices
Large Truck My truck is bigger than yours. The forum for 2+ ton trucks (all years), COE's, Louisville's, Big-Job's etc.

78 b600 361swap to 429?

  #16  
Old 06-14-2018, 07:17 AM
awhtx
awhtx is offline
Senior User
Join Date: Feb 2006
Location: Lampasas,TX
Posts: 472
awhtx is gaining momentum as a positive member of FTE.awhtx is gaining momentum as a positive member of FTE.
Originally Posted by Dbush72 View Post
I sprayed carb cleaner allover the intake and carb already, no indication of a leak. Btw, yes the motor was running.
On FE and FT engines the intake manifold meets the head underneath the valve cover so you were not spraying carb cleaner on the intake manifold gasket.
Look at the photos in this article and you can easily see the valve cover flange that is part of the intake manifold.
https://www.diyford.com/ford-fe-engi...ltimate-guide/
 
  #17  
Old 06-14-2018, 09:22 AM
Dbush72's Avatar
Dbush72
Dbush72 is offline
New User
Thread Starter
Join Date: Jun 2018
Posts: 12
Dbush72 is starting off with a positive reputation.
Im familiar with the FE and that the intake is "part" of the head, i was referring to the block/intake gaskets front and rear and the carb base and the 1" ish egr thing between the carb and intake. I didn't figure that the gasket between head and intake was leaking since there isnt any oil being burned as if it were being sucked in from under the valve cover... Late valve timing is the other part of what is indicated by vacuum gauge, is it possible that the timing chain could have stretched enough to lag the cam that far behind the crank? And BTW, thank you all for your help with this, ive got a couple other things that I will be asking for some advice with in the near future too.
 
  #18  
Old 06-14-2018, 09:36 AM
m-chan68's Avatar
m-chan68
m-chan68 is offline
Postmaster
Join Date: Mar 2010
Location: Brampton, Ontario, Canada
Posts: 4,362
m-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputation
Originally Posted by Dbush72 View Post
So 45 mph on flat ground and 20 on a hill was the best these busses could /can do? Even when new? My f-ing god!!, How did anyone ever get to where they were going? Theres no way that wouldve been accepted by any school district.!
As a kid who has vivid memories of riding on his share of school buses, I remembered the driver putting on his hazards any time he encountered a steep hill with a full load of students trying to climb it. And yes, the bus was a newer one equipped with a 370 V8 LPG powered, with an Alison behind it. I remembered this, because I remembered being extremely amused by the fact that THAT was as fast as it could go, under those operating conditions.
 
  #19  
Old 06-20-2018, 05:20 AM
big job's Avatar
big job
big job is offline
Posting Guru
Join Date: Dec 2005
Posts: 1,234
big job has a great reputation on FTE.big job has a great reputation on FTE.big job has a great reputation on FTE.big job has a great reputation on FTE.big job has a great reputation on FTE.
I just find this a little hard to believe. Back in the 70's we had probably 15 B model 60 pass Ward bodys
with 330's and 4 speed. They climbed hills they stayed with the 350 GMCs on class trips. I just think
by now its timing chain time....... It doesn't take too much chain stretch to go gutless...
 
  #20  
Old 06-20-2018, 07:38 AM
Krewat's Avatar
Krewat
Krewat is offline
Super Moderator
Join Date: Jul 2002
Location: Long Island USA
Posts: 38,816
Krewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputation
Originally Posted by Krewat View Post
You shouldn't have vacuum on the vacuum advance. If the vacuum advance dashpot dual-ported or single? And if it's single, it's sticking out towards the front of the vehicle? Where does the vacuum advance line connect to on the carb? Can you post pics?

Vacuum on these should be "ported" vacuum - they should only have vacuum as you step on the gas, not at idle.

If you're using manifold vacuum for vacuum advance, the advance will RETARD as you get into the go-pedal and the engine won't accelerate correctly.
And this AGAIN - you need to check this vacuum advance thing before you go any further. Using manifold vacuum for the vacuum advance will retard the timing as you get into the gas-pedal. That's not what you want.
 
  #21  
Old 06-20-2018, 08:39 AM
Dbush72's Avatar
Dbush72
Dbush72 is offline
New User
Thread Starter
Join Date: Jun 2018
Posts: 12
Dbush72 is starting off with a positive reputation.
Originally Posted by Krewat View Post
And this AGAIN - you need to check this vacuum advance thing before you go any further. Using manifold vacuum for the vacuum advance will retard the timing as you get into the gas-pedal. That's not what you want.
Im using the little vacuum port on the front of the carb base, other than the big port on front that goes to passenger valve cover pcv and big one on back of carb (plugged off as vacuum for brake system is on manifold between carb and distributor.), Theres no other vacuum source on carburetor, and i know to not use manifold vacuum for dist advance. Btw, i took off the old holley 4barrel and put the old carter 4barrel (mechanical secondaries and man choke)off the 429cj on the bus because the little tube between front n rear fuel bowls is leaking fuel, and i havent been able to make time to go through it and put a kit in it, tried to put new orings on ends of tube n might have worked but the bowl gaskets sprung leaks after the orings went in, so i just swapped it for the known to be good carter on my dd rig. There's a few things that dont have nowhere to plug onto as the carter is void of all the emmissions crap the holley had coming off of it...nothing that i see would be a contributor to my power loss just tube to charcoal can, carb secondaries, etc.
 
  #22  
Old 06-20-2018, 09:36 AM
Krewat's Avatar
Krewat
Krewat is offline
Super Moderator
Join Date: Jul 2002
Location: Long Island USA
Posts: 38,816
Krewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputation
You should haven't vacuum on the vacuum advance at idle. If you do, and it's a "ford" type vacuum advance port on the Carter, the throttle plates are open too far. This could be because the timing is too far retarded, and you had to open the plates (raise the idle) to compensate.
 
  #23  
Old 06-20-2018, 06:04 PM
Dbush72's Avatar
Dbush72
Dbush72 is offline
New User
Thread Starter
Join Date: Jun 2018
Posts: 12
Dbush72 is starting off with a positive reputation.
Originally Posted by Krewat View Post
You should haven't vacuum on the vacuum advance at idle. If you do, and it's a "ford" type vacuum advance port on the Carter, the throttle plates are open too far. This could be because the timing is too far retarded, and you had to open the plates (raise the idle) to compensate.
Which way do i turn the dist. to advance, clockwise?
 
  #24  
Old 06-20-2018, 09:22 PM
m-chan68's Avatar
m-chan68
m-chan68 is offline
Postmaster
Join Date: Mar 2010
Location: Brampton, Ontario, Canada
Posts: 4,362
m-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputation
Originally Posted by Dbush72 View Post
Which way do i turn the dist. to advance, clockwise?
Remove the distributor cap. Bump the engine over with the starter as you watch the direction in which the distributor rotor turns. To advance ignition timing, you move the distributor body in the OPPOSITE direction that the distributor rotor turns when the engine is running. This goes for any engine that uses a distributor.
 
  #25  
Old 06-20-2018, 10:42 PM
Destroked 450's Avatar
Destroked 450
Destroked 450 is offline
Elder User
Join Date: Dec 2015
Location: Harned, Ky
Posts: 960
Destroked 450 has a good reputation on FTE.Destroked 450 has a good reputation on FTE.Destroked 450 has a good reputation on FTE.
The biggest reason it won't pull a hill very fast is that pos at540 Allison, the manual trans buses with 361's ran good, I rode on my share of them in the 60's and early 70's.
 
  #26  
Old 06-21-2018, 07:43 AM
m-chan68's Avatar
m-chan68
m-chan68 is offline
Postmaster
Join Date: Mar 2010
Location: Brampton, Ontario, Canada
Posts: 4,362
m-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputationm-chan68 has a superb reputation
Originally Posted by Destroked 450 View Post
The biggest reason it won't pull a hill very fast is that pos at540 Allison, the manual trans buses with 361's ran good, I rode on my share of them in the 60's and early 70's.
I agree with that statement 100%.
 
  #27  
Old 06-21-2018, 10:05 AM
Krewat's Avatar
Krewat
Krewat is offline
Super Moderator
Join Date: Jul 2002
Location: Long Island USA
Posts: 38,816
Krewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputation
Originally Posted by Dbush72 View Post
Which way do i turn the dist. to advance, clockwise?
The very VERY short answer to that is: yes



All ford gas engines at least from the 60's and up, the distributor spins counterclockwise. (never worked on a flathead - lol)
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
RandomElement
1973 - 1979 F-100 & Larger F-Series Trucks
3
01-21-2013 08:33 PM
musme
1948 - 1956 F1, F100 & Larger F-Series Trucks
4
04-14-2008 10:48 PM
CBSuperduty
1999 to 2016 Super Duty
2
01-25-2008 09:39 PM
b600jake
New Member Introductions
2
09-04-2007 06:17 PM
2004EscapeLimted4x4
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
5
03-11-2007 11:43 PM


Thread Tools
Search this Thread
Quick Reply: 78 b600 361swap to 429?


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.