|
By Deyomatic - 2 Years Ago
|
What drives the fuel pump on a Y Block? Does the pump arm ride on the cam or is there a pushrod or something? I can't picture it and none of my reference material is helping out, much.
|
|
By 55blacktie - 2 Years Ago
|
|
There is a fuel-pump eccentric that is attached in front of the camshaft gear. The mechanical-fuel-pump arm is inserted through the timing cover and goes under the eccentric. As the eccentric rotates, it applies pressure to the arm, pretty much the same way as the water hand pumps that you see in old movies. Sadly, "The pump don't work cause the vandals took the handle." Thank Bob Dylan for the quote.
|
|
By paul2748 - 2 Years Ago
|
When inserting the pump arm, make sure it is going in at a downward angle so it goes under the eccentric. Additionally, I understand that it is easier to bolt up if the engine is at top dead center and the eccentric is it it's low point on the bottom.
I usually just stuck my finder in the hole and rotated the engine to get the eccentric where I wanted it.
|
|
By Deyomatic - 2 Years Ago
|
That makes sense. Thanks so much. My only experience is on...well...another brand of V8.
..and thanks for the quote... I appreciate Bob Dylan more than you can imagine. My first concert was Bob Dylan 1997- as a freshman in college. In all I saw him 12 times before my concert going days fell by the wayside.
|
|
By KULTULZ - 2 Years Ago
|
Really dumb fuel pump question...
Deyomatic (12/16/2023)
What drives the fuel pump on a Y Block? Does the pump arm ride on the cam or is there a pushrod or something? I can't picture it and none of my reference material is helping out, much. First off, there is no dumb question (other than my asking my little thumbscrew to marry me). How else would you learn? LYB FUEL PUMP ECCENTRIC - BASIC PN 6281 It rides on the front cam journal. 
|
|
By Deyomatic - 2 Years Ago
|
|
Thanks for the visual, Kultulz. That helps my brain picture this.
|
|
By Ted - 2 Years Ago
|
Here are some pictures showing the fuel pump eccentric on the FYB engines.
|
|
By panel driver - 2 Years Ago
|
|
55Blacktie No No No It ain't me babe.
|
|
By KULTULZ - 2 Years Ago
|
|
What drives the fuel pump on a Y Block? Does the pump arm ride on the cam or is there a pushrod or something? I can't picture it and none of my reference material is helping out, much.
I must have LYB SYNDROME. Time to call the HOME for a reservation ... 
Does the pump arm ride on the cam or is there a pushrod ...
We have a BOW-TIE GUY in our midst ... 
|
|
By Deyomatic - 2 Years Ago
|
[/quote]
We have a BOW-TIE GUY in our midst ...
FORMER Bow-tie guy! Not against them, and I fully understand why people love them...but variety is nice.
And thanks for the photos, Ted...VERY helpful.
|
|
By KULTULZ - 2 Years Ago
|
"FORMER Bow-tie guy!"
I'm glad you saw the light ...
NAH! I am just funnin' with 'ya ...
I became obsessed with the 305/350 TPI at one time, but I sought professional help before buying one.
The SBC is a wonder, I will give them that.
|
|
By Deyomatic - 2 Years Ago
|
|
Well, if I'm being honest....I kind of love hydraulic lifters!
|
|
By KULTULZ - 2 Years Ago
|
I also prefer hydraulic tappets (roller - anti-pump up and adjustable) on a street engine.
|
|
By FORD DEARBORN - 2 Years Ago
|
|
Hard to beat the awesome sound of our solid lifter Y-blocks or a 289 High Performance.
|
|
By KULTULZ - 2 Years Ago
|
"Hard to beat the awesome sound of our solid lifter Y-blocks or a 289 High Performance."
Correct you are, but ...
There are 'special situations/occasions' where one desires to sneak up on the competition with stealth ...
You perform your 'show me what you have' (under hood check), the install looks OEM and there is no excessive mechanical noise and then you proceed from there.
Can hide a lot of events in a roller.
|
|
By 55blacktie - 2 Years Ago
|
|
Fnding quality hydraulic lifters, whether flat-tappet or roller, can be a problem.
|
|
By Deyomatic - 2 Years Ago
|
|
Yes...They sound great...but I'm lazy! I also don't like having to risk leaky valve covers every few thousand miles.
|
|
By 55blacktie - 2 Years Ago
|
|
You shouldn't have to adjust the valves every few thousand miles.
|
|
By Deyomatic - 2 Years Ago
|
|
How often are you supposed to do it? I was thinking every 10,000 miles or so?
|
|
By Ted - 2 Years Ago
|
|
Deyomatic (12/24/2023)
How often are you supposed to do it? I was thinking every 10,000 miles or so?
Probably a bit of overkill but a 10K interval for setting the valve lash would be okay. That would coincide with the old once a year tune-up interval back when those cars were daily drivers and were also in need a set of spark plugs and points. Unless the car is a daily driver, then the valve lash adjustment could potentially be put on a two or three year interval rather than a mileage interval.
I check the valve lash at 40K mile intervals on my’55 Customline with its 272 Y. That coincides with when I change out the spark plugs for new ones. Electronic ignition has made the old 10K tune-up intervals sort of a moot point and definitely overkill. The last time that spark plug change interval came up, the valve lash was checked but needed no changes so unless I hear something going on under the valve covers, they will not be checked again until the next spark plug change interval. The car currently has 335K miles on it while the engine has 223K miles on it since the rebuild and the addition of the E4 Isky camshaft.
This is just the way I do it on my own Y so don’t let this be the final word on the subject.
|
|
By 55blacktie - 2 Years Ago
|
|
Good morning, Ted. What plugs are you using with the electronic ignition?
|
|
By Deyomatic - 2 Years Ago
|
|
Well then. Thanks for that write up Ted. Looks like I'll be waiting a few more years before checking them again.
|
|
By Ted - 2 Years Ago
|
|
55blacktie (12/25/2023)
Good morning, Ted. What plugs are you using with the electronic ignition?
I use the same spark plugs as is being used on a breaker point ignition. For the ’55 Ford with the electronic ignition conversion, I have been using the Autolite #46 spark plugs gapped at 0.035”.
I am slowly moving away from Autolite to NGK on the shop built engines due to having a better heat range selection with the NGK’s as well as having some brand new Autolites not firing from the git go. The Autolites have been coming from both Mexico and China but it is the China made Autolite spark plugs that I have had trouble with. It seems to be potluck at the parts store on which country of origin the Autolite spark plugs are from. I now do a mandatory ohm check on the new spark plugs before installing them.
|
|
By KULTULZ - 2 Years Ago
|
"I am slowly moving away from Autolite to NGK on the shop built engines due to having a better heat range selection with the NGK’s as well as having some brand new Autolites not firing from the git go. The Autolites have been coming from both Mexico and China but it is the China made Autolite spark plugs that I have had trouble with. It seems to be potluck at the parts store on which country of origin the Autolite spark plugs are from. I now do a mandatory ohm check on the new spark plugs before installing them."
THANX! FOR THAT INFO TED ...
|
|
By 55blacktie - 2 Years Ago
|
|
What do you think of NGK 2438 plugs?
|
|
By Ted - 2 Years Ago
|
|
55blacktie (12/26/2023)
What do you think of NGK 2438 plugs?
I have used the NGK 2438 18mm spark plugs in a stock but blueprinted Ford Y engine and they worked just fine and held up well over time. That engine had electronic ignition which helps with the overall life of the spark plugs. That same NGK spark plug has also been used successfully in a stock iron headed 390 Ford engine also with electronic ignition. The only issue I have with the 2438 NGK sparkplugs is that it’s a 'fit all' spark plug and only available in one heat range. For a performance Ford application requiring a 18mm plug, a colder heat range spark plug would be desired.
|
|
By Hoosier Hurricane - 2 Years Ago
|
|
How did we get from fuel pumps to spark plugs on this message?
|
|
By 2721955meteor - 2 Years Ago
|
55blacktie (12/24/2023)
You shouldn't have to adjust the valves every few thousand miles.
|