Fuel Pump Push Rod Bushing

[bbrocksr]

Lets not be critical, Seems like everybody was happy but you.
Bill

[flatjack9]

Originally Posted by Karl Wolf

As an adendum to this thread, I note that the bushing can be pushed in, and removed... If you have the cam out... I do this so that I can clean out the oil gallery with a brush... Then put the same one back in...
I also have saved the bushings from blocks that I have scrapped. The only new one I've ever bought was made of aluminum, and worse than the old one...
Karl

Right, this should be routine for proper cleaning when building an engine.

[Bruce Lancaster]

This is one of the BIG advantages of the internet...you can immediately get 15 or 20 great and totally different answers to any tech question!
A Ford manual will only get you one...what a rip!
No wonder no one reads books any more!
Note that some people on here are a kind of gold standard. There are a number of real gurus here, but Ron has built more flatheads than most of us have seen, experimenting and documenting along the way, and that anything JWL has ever said is backed by blueprints, sectioned engine blocks, 15 dyno runs, and exhaustive flow work...

[flatjack9]

Well said! I couldn't agree more.

[Ol' Ron]

Yes, after you knock the can bearings out, Knock the bushing out.

[Binx]

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Hold on here fellas, this is an old thread. Here is the one that talks about the oil pressure test with and without the push rod.

https://fordbarn.com/forum/showthread.php?t=99948

[mike42]

Man this is confusing ! So......with my '40 85 hp.....would it be better to install the rod and pump ? I'm only using the electric at this point with a block off plate where the original pump would mount.

Thx....Mike

[51 MERC-CT]

Originally Posted by mike42

Man this is confusing ! So......with my '40 85 hp.....would it be better to install the rod and pump ? I'm only using the electric at this point with a block off plate where the original pump would mount.

Thx....Mike

Without the plug you may or may not get excess oil misting in the valve spring chamber.
If I were doing it, I would install the original fuel pump arrangement and if you don't trust it, install an electric (seperate switched) fuel pump forward of the tank to be used just in case.

[mike42]

ok 51.....I had so many problems before and now it runs so good I hated to change it back to original pump, but if it's going to spray a mist around or not give proper lube to rest of the engine I'll put the regular pump on. Thx....

Mike

[harley]

Mike 42, The 40 does not have the orifice in the bushing, no mist, no problem.

[mike42]

ok...thx !

[51 MERC-CT]

Originally Posted by harley

Mike 42, The 40 does not have the orifice in the bushing, no mist, no problem.

And what about the hole in the cam bearing?

[19Fordy]

If you do a Fordbarn search for " Fuel Pump Push Rod" tons of info. appears that IS worth reading.

[PhoenixFear]

I was wondering about this recently as for the most part I wanted to go with an electric pump. However I think I'll stick with a regular fuel pump for now. I just rebuilt the whole engine and of course forgot about this bushing. The 8BA fuel pump push rods seem to be very hard to find at this time, but I have a good used one I found. I think it has some play with the bushing in the block now but the machinist who did the block said he hasn't had a need to replace that bushing. I have a new bushing but from reading this thread I am on the fence about replacing it. I'll probably leave it alone.

[Mac VP]

One reason for removing the bushing hadn't been mentioned. If you're having the block acid dipped prior to a rebuild, ALL soft metals must be removed. I suppose the chemicals would simply eat up the pre 49 bushings which are made of brass. Safer to simply knock it out. Same for the cam bearings, rear seal retainers, block drain plugs, etc.

[Russ/40]

Originally Posted by PhoenixFear

I was wondering about this recently as for the most part I wanted to go with an electric pump. However I think I'll stick with a regular fuel pump for now. I just rebuilt the whole engine and of course forgot about this bushing. The 8BA fuel pump push rods seem to be very hard to find at this time, but I have a good used one I found. I think it has some play with the bushing in the block now but the machinist who did the block said he hasn't had a need to replace that bushing. I have a new bushing but from reading this thread I am on the fence about replacing it. I'll probably leave it alone.

There is supposed to be considerable play. The only true indication of need to replace, I have seen, is rapid extreme wear on the sides of the push rod.

[PhoenixFear]

Originally Posted by Russ/40

There is supposed to be considerable play. The only true indication of need to replace, I have seen, is rapid extreme wear on the sides of the push rod.

That's what I was told as well, so as not to "lock up" the push rod when running. I checked my push rod and inserted it into a new bushing I bought and it is a very small amount of play. Thanks.

[woodypecker]

I have a new pushrod in an old bushing in an 8ba and it has just a little slop and very good oil pressure.

[Russ/40]

Keep in mind, the bushing supports the very bottom portion of the rod. Put a bushing in a vice gently, insert a pushrod just beyond the end of the bushing. Now from the top of the rod, move it back and forth. You will have quite a bit of movement.