Reassembling my crossflow

[califkid_66]

I had a piece of aluminium  so i made an alignment tool and it worked fine just trying it with the old gasket thank for all your inputs

[jbcollier]

Nice.

These are the dimensions I pulled off my factory tool:

9.75mm and 16mm =/0.04

You'll need to add a pivoting or removable "handle" to pull it out the bottom when the head is in place.

[GavinT]

  Is there some documentation about the cut on the tappets? Or is it just 1-3 degree convex regrind?

There's no documentation that I know of.

The tappets are off-centre to the cam lobes so, in theory, they should spin correctly.
I've seen discussions re convex v flat surface grind, but nothing definitive one way or the other.

It's usual to have whoever is grinding the cam to also reface the tappets.
That's how I get around it.

[jbcollier]

Both the lifters and the cam are ground to the same angle.

[califkid_66]

What would be the best way to deal with the camshaft float I measured with a dial gage I got .021 thousand
I need between .002 and .0045
It’s a pressed in
Can it be pressed in to much ?
Would it be ok to leave it like this cause it’s tappets on the cam so they still sit on the cam lobes
Should I go to a specialized place to get it adjusted
Do I have to get a new gear
Im afraid to damage my cam
I have a bunch of books but there’s no details about this
Need help !! 
Thanks!

[jbcollier]

Been a while but I think you just need to press the gear on a little further.  Don't use a hammer!

[califkid_66]

Ok today I decided I will try !!
I used a pipe bender as a press went real nice got it from .021 to .004 witch is
In the tolerance now I was told if you get it inside the tolerance don’t touch it
anymore !!

Now my axial is ok is there a tolerance for radial or it as to be dead on

[jbcollier]

They run in the block so examine the "races" for wear and scoring.  Check the cam bearing journals for the same.  Usually not an issue.

[califkid_66]

What I meant is radial of the gear
when the camshaft is in the block
I put my dial gage on the gear pulled
and pushed .004 witch is good
Then I left my dial gage and turned the gear and
Noticed about .003 thousand of radial on the
Gear when cam is bolted in
Is that normal or my gear is crooked it’s not much
But there’s no place in the book that talks about radial only axial
Tolerance
I could take it off and try to straighten it but for 3 thousand
I don’t know

[jbcollier]

It's cast gear.  3 thou run-out is pretty good.

Usually you fit new gears, chain and tensioner as a package.

[califkid_66]

The parts are in very good condition it probably was never pushed in enough
Im within the tolerance so I’m gonna install it like that
Thanks for your help JB  i should be ok for the rest
Thanks again!

[RonPNW]

So how did it go? Are you on the road?

I'm starting a crossflow refurb as we speak. Many of the same issues with an engine purchased 30 years ago that once ran fine. Hoping to simply flush, remove the pan and valve cover for inspection, adjust valves as needed, check compression and leak down and on to the highway. Or maybe not, it does rotate so that is a good sign.

What did you end up with re ignition and carbonation?

Thanx
Ron

[MRN I J]

I had a vernier cam wheel for my crossflow made so I could time the cam to the manufacturers spec / my spec.
Using a race cam from Piper cams via Salve Sacco, would possibly use my own spec cam grind now although Salve has better spec cams now.

[califkid_66]

it’s still on the bench i put it on hold since summer came to fast i concentrated
on the wedge learnt a lot about ignition charging system carburation and i wanted to
take a ride in it and i did and it runs great so now im in no rush to finish up the engine
i have to repair or get a new oil pan i have to order a full gasket set and i want to take my time
i’ve been working a lot lately so  not much time right now

what do you mean by re ignition or carbonation sorry i don’t understand

[dakazman]

  Following your lead Califkid, these engines are full of surprises but step by step we will prevail!
Dakazman