2F Hydraulic roller lifter project

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frontrange

frontrange

Joined
May 13, 2008
Threads
21
Messages
179
Location
Colorado Springs
I've been busy on this project for a while and decided it was a good time to show off some progress pictures. BTW, in case it's not obvious, this was all CNC'd except for the cylinder block holes. Those were done with a simple fixture...

First problem, install the lifters so they can't rotate the way the solid tappets do...







Sorry if you can't make it out from the pictures, but each cylinder has a pair of bushings with a double D cutout at the top and a "dogbone" that goes over them. The dogbone is held in place with a circlip on each bushing, and has the flats that keep the Chevy lifter from rotating.

So, next problem, charging them with oil..



I made a new pushrod cover that doubles as an oil manifold. It's a baseplate with a galley milled in it, and a cover plate that closes the galley. The oil gets through the coverplate gasket by means of a capillary tube that passes from the oil galley into each bushing.

You can see the holes in the block here..



And what it looks like with the manifold in place.


The distributor is replaced with a Ford EDIS-6, the coil on the manifold is part of the setup. One this engine is done, in addition to a roller lifter valve train, it will be port injected and full closed loop control of fuel and spark via a megasquirt ECM.

Next big project is cutting a cam blank that will take the roller lifter lobe profile, then I just need to stub off an oil drive shaft to go in place of the distributor.
 
I don't know cam profiles from blueberry muffins. My job ends with the manufacture of a blank that has rounds that can be ground to any profile. Someone else will have to design the profile, harden and grind the cam. Fortunately, that's pretty easy to outsource.
 
Wow!

:clap:

Subscribed :)
 
yes, please. and thank you.
 
Here's a little more 2F engine p0rn. I couldn't find a high performance head gasket for the 2F, so I did the CAD work and cut my own out of .022 copper. These will give a nice quench with a block that is cut as high as 12-13 thou over zero. I've never liked the idea of cutting a block below zero to deal with a stock 60 thou head gasket.

 
Thanks, I'm OCD when it comes to my CAD/CAM work. You wouldn't believe how much time I wasted on those head gaskets getting every single hole dead on center even knowing it didn't matter a bit if they were off by a few thou. I ended up cutting at least a dozen clear plexiglass copies and matching them against 2 blocks to average everything out. Like I said, totally OCD....
 
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okay, so are these gaskets stacked and sealed, or are they just place one down and torque? or are you going to Oring the head and block? How much are you asking?
 
Annealed between uses and torqued. I haven't decided if I'm going to o-ring yet. I need to run the speeds and feeds for a .040 endmill and see how long a run would take, I suspect it's going to be hours, even turning the endmill at 20K rpm which is my spindle upper limit (with a speeder). I haven't looked at it yet because I can't do it anyway till the blocks I'm building are decked, and I have to eyebrow them before they go to my racecar machinist guy for that. So everything in due time.

I'm not "asking" anything for my parts. I'll certainly have leftovers, but until I have an engine or two up and running selling things off isn't in the cards.
 
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Pistons used ? Stock 2F? Or are you going to be making them as well :)

I know alot of F engine guys would love a source for new pistons :)
 
nothing, but availability. yeah, how bout some custom pistons for a 3FE block and rods w higher wristpin bore for use w 2F crank?
 
I can't really make a piston from scratch. They need to be cast from the right alloy, and forget about forging them if you want that , although I never would put forging on my list of wants for an F/2F piston.

Anyway, it's all moot because I already have too much on my plate to add yet another project, sorry.
 
naw, just sayin, you seem to got yourself some skills...anyway, custom rod to use a 305 piston in a 3F block would be better than custom pistons any day;)
 
I've never understood why Toyota didn't go with roller hydraulic lifters when the brought out the 3F block. WTFO.

Anyway, I just finished programming my first cylinder wall eyebrow. I'll do a test run then have to decide if I want to spend the rest of my Sunday drinking beer till the Walking Dead comes on or schlepping a fresh block down into the shop....
 
You have quite a bit of talent and resources ... Wishful thinking you may have the talent of 'piston birth' as well :)

The stock of oversized pistons seems to be dwindling

If you run into anybody who can make pistons... There will be a market for sure

There are lots of things toyota took forever doing and/or redesigning
 
If you've seen "World's Fastest Indian", The Anthony Hopkins character (name eludes me) has a large collection of home cast pistons gone through before getting his hands on a good aluminum alloy that holds up (from melting some modern pistons). Now I'm not sure I'd recommend any movie as a historical document (that didn't work too well for the Termites in Galaxy Quest) in theory it wouldn't be too hard to make a piston in even a modest home shop with a small lathe. Cats have been doing simple milling operations in hobby lathes for decades.

Once they become unavailable, they will become available again for sure.

Funny thing about the 3FE was they did such a wicked cool job on the induction design, and then they put 1930's vintage tappets in it? Arrrgh!
 
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frontrange said:
...then they put 1930's vintage tappets in it? Arrrgh!
Click to expand...

Maybe they really like the noise it makes when they are out of adjustment... Or in adjustment for that matter LOL :)
 
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