|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
05-30-2020, 11:54 AM | #1 |
Senior Member
Join Date: Mar 2020
Location: Montana
Posts: 186
|
zenith 1 on model b engine?
Any problems putting a zenith 1 carb on a model b engine?
What about the new (not rebuilt) zenith carburetors Snyder's sells?.....any problems with that?.....good quality? Any input you may have on this subject would be appreciated. odie, the eccentric old guy! |
05-30-2020, 12:07 PM | #2 | |
Senior Member
Join Date: May 2010
Location: Eastern Tennessee
Posts: 11,513
|
Re: zenith 1 on model b engine?
Quote:
My personal recommendation is purchase a rebuilt carburetor from a reputable rebuilder and avoid the new one if possible. The quality (-from my experience) has been hit or miss on those. |
|
Sponsored Links (Register now to hide all advertisements) |
|
05-30-2020, 11:01 PM | #3 | |
Senior Member
Join Date: Mar 2020
Location: Montana
Posts: 186
|
Re: zenith 1 on model b engine?
Quote:
Is the Carburetors and Carbohydrates informational dvd offered by Snyders any good?......should I decide to try and rebuild this one? I don't think a little less power is too hard to take......in the environment I plan to drive my model a, I doubt I'll ever wish to go over about 45mph, and no real tough inclines to negotiate. Thank you for your reply....... |
|
05-30-2020, 11:55 PM | #4 |
BANNED
Join Date: Dec 2019
Posts: 1,196
|
Re: zenith 1 on model b engine?
Build the carb yourself,cleanliness and attention to detail along with a decent guide should be more than enough.Both the stock B carb and the stock A carb underfuel their particular engines by about 50%,the actual performance loss between the two is negligible
|
05-31-2020, 07:54 AM | #5 |
Senior Member
Join Date: Aug 2018
Posts: 2,332
|
Re: zenith 1 on model b engine?
If rebuilding try a set of Renner's Corner flow tested jets. Running rick is common when jets used are not flow tested. I ran into the same thing with a rebuilt carb off ebay - a relatively inexpensive set of Renner's and all is great.
|
05-31-2020, 10:32 AM | #6 |
Senior Member
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,431
|
Re: zenith 1 on model b engine?
Sponsored Links (Register now to hide all advertisements)
|
05-31-2020, 07:08 PM | #7 |
Senior Member
Join Date: May 2010
Location: Between Seattle & Tacoma
Posts: 2,354
|
Re: zenith 1 on model b engine?
|
05-31-2020, 08:57 PM | #8 |
BANNED
Join Date: Dec 2019
Posts: 1,196
|
Re: zenith 1 on model b engine?
its less than 10%..under 4 hp.The B carburetor is superior to the A zenith due to float layout alone.The slight increase in airflow with the B still doesn't come close to the A engine capability.SU1 cam raises volumetric efficiency and peak torque is higher as well yet its kinda a moot point with a stock head and a B carb..
|
05-31-2020, 09:28 PM | #9 |
Senior Member
Join Date: May 2010
Location: Alabama
Posts: 8,099
|
Re: zenith 1 on model b engine?
I agree , The C head gave the model B nearly a seven horse power increase over the model A engine . The B carb , larger intake ports and improved cam profile added just over three horsepower . The B carb adds less than three horsepower .
|
05-31-2020, 11:09 PM | #10 |
BANNED
Join Date: Dec 2019
Posts: 1,196
|
Re: zenith 1 on model b engine?
The best thing you can 'harvest' from a B engine for a model A engine is the camshaft,especially if you can fint a late B cam..the engine will build torque to 2900 rpm as opposed to the A cam at 2400..it also has a measured lobe height .030 greater than the A..it builds power faster and longer,yet allows a low idle with no lope.
|
05-31-2020, 11:46 PM | #11 |
Senior Member
Join Date: May 2016
Location: Glide, Oregon
Posts: 1,339
|
Re: zenith 1 on model b engine?
Back to Zeniths, I have an 'Air-balanced' Zenith 1 from Snyder's that runs great with a basically stock engine with 5.5 head.
I also have a rebuilt Zenith 1 that has never run correctly, runs overly rich.
__________________
Ruth "Sometimes you really DO need to read the whole thread" |
06-01-2020, 06:05 AM | #12 | ||
Senior Member
Join Date: Mar 2020
Location: Montana
Posts: 186
|
Re: zenith 1 on model b engine?
Quote:
Quote:
What is the difference between "air balanced" and "flow tested".......? Are we speaking about the same thing? odie, the eccentric old guy! |
||
06-01-2020, 06:25 AM | #13 |
Senior Member
Join Date: Sep 2017
Location: Monson, MA
Posts: 166
|
Re: zenith 1 on model b engine?
odie, see my post about a sluggish B carb from two months ago.
https://www.fordbarn.com/forum/showthread.php?t=279353 |
06-01-2020, 08:05 AM | #14 |
BANNED
Join Date: Dec 2019
Posts: 1,196
|
Re: zenith 1 on model b engine?
Flow testing refers to testing that the jet size is accurate,a fixed water volume is gravity fed into the jet held in a fixture and timed..the time it takes the proscribed volume to drain yields the jet size.'New' aftermarket jets are not held to the same standards as originals.Original jets cleaned with a tip cleaners can have an altered spray pattern.
To correctly set a zenith float height you must use a sight gauge and shim the float valve,this is one of the main reasons for complaint,especially stalling on braking it also effects how the jets draw. Ford 'held' all the major discoveries with the A engine for the B..things from a bigger crankshaft,pressure lubrication,mechanical advance distributor and an improved carburetor among them.stalling on braking was cured by turning the float 90 degrees,mounting it port and starboard stopped the float from being affected by braking. |
06-01-2020, 09:39 AM | #15 | |
Senior Member
Join Date: May 2016
Location: Glide, Oregon
Posts: 1,339
|
Re: zenith 1 on model b engine?
Quote:
__________________
Ruth "Sometimes you really DO need to read the whole thread" |
|
|
|
Sponsored Links (Register now to hide all advertisements) |
|