Case Question

[louisb]

Okay, many years ago I bought a new AS41 case. At the time I had planned to run some light weight lifters from aircooled.net and had the necessary bronze bushings installed by a local machine shop. At the same time I had them drill and tap all the oil galleys. Now that I am specing out the engine I am not so sure about the light weight lifters since I have heard they have "issues". Plus the machine shop really butchered the oil galleys and none of the standard size plugs fit. No other work has been done to the case. So I figure I got a couple of options and wanted to get some input.

1. Send the case off and have the oil galleys fixed and run the light weight lifters. Least expensive unless I buy an alumn case that has all the needed case mods.

2. Send the case off, have the oil galleys fixed and new bronze lifter bushings installed for standard lifters. Probably about half the cost of a new case, but I would need the same work done to a new case anyway.

3. Set the case on my shelf of shame with all the other parts i have broken over the years and get a new case. (Then there is the decision between mag and alum cases.)

Current thoughts on specs for the engine are:

78 or 82 stroke X 94 bore
FK-8 or Web86c
Some sort of heads
9.5ish comp
1 3/4 header
010 dizzy
rest of the usual go fast parts.

This will be a street/strip car with more emphasis on street. (if I decide I really want to go racing I will build a race car. I want to drive this one a lot. Like maybe to the Classic in a few years)

Thanks,

--louis

[Shubee2 (DSK)]

the lifter bores should all be the same size's  as far as the galley plugs go I would ship the case to Rimco in Calif and have them fix it  they are the Best I have Seen

[Jim Gillum Racing]

I would absolutly stay with the light weight lifters.  You paid good money for them and they are worth it.  Call John and buy his light weight heavy duty aluminum push rods.  As far as your header size goes I would go with 1 5/8 size.

[louisb]

I would absolutly stay with the light weight lifters.  You paid good money for them and they are worth it.  Call John and buy his light weight heavy duty aluminum push rods.  As far as your header size goes I would go with 1 5/8 size.

You have any exp with the light weight lifters? I heard from someone I trust, who is heavy into T4s, that he has had some problems with them. If they are worth keeping then I will do it. 1 5/8s on the exhaust eh? I will give that some thought. I won't mention I have a set of squishies too I am undecided on running.

Rimco and Brothers are my first two choices for machine work. I learned my lesson on going with non-vw machine shops that is for sure.

Edit: While I have your attention. Is a sand seal a must on a hipo engine?

Thanks,

--louis

[Gary Justus]

yeh.....you might want to try Brothers

[louisb]

yeh.....you might want to try Brothers

I have been hearing a lot of good things about them lately. Several folks on the CLF have recommended them.

--louis

[Alan Uyeno]

What light weight lifters are you talking about?? Is it the lightweight lifters AC.net sold a good 6+ yrs ago with the real small lifter body??? are you talking about schubeks?

A handy dandy machinist can probably ream out the silicon bronze sleeves you already have. Give them a sample lifter so they can match the bores with the OD of the lifter body.

My only concern is that the machine shop didn't index the lifterbores with the existing bores. Alot of reputable vw machine shops have a jig to perfetly align the bores.  Ask if Rimco has a jig??  HMMM? Indexing a lifter bore sleeve with "old one" isn't good!!

A friend of mine used the heavy duty aluminum pushrods with 7mm stemmed valves, schubeks, stiff VW OD dual valve springs  and he now owns  45 degree angled pushrods 
Low revving street cars can benefit from aluminum pushrods but I'd use a heavier taper pushrod for rigidity for a high revver. The smith brothers/jaycee/GB 160,000 psi pushrods work extremely well but a marginal amount of potential for some flex because they are straight.

louis, if your willing to go with a CB aluminum case that would give you everything you want straigtht out of the box. 1 way shipping to your door. If and when the aluminum lifterbores go oval you can get it sleeved with silicon bronze.

OR

Take the time and do not waste a new "butchered" AS41 case. Get it fixed and abuse it to your hearts content 

[louisb]

Is it the lightweight lifters AC.net sold a good 6+ yrs ago with the real small lifter body???

That is them. Tells you how long I have been sitting on these parts.

--louis

[louisb]

I will probably run the Berg pushrods. I am still undecided on the lifters. I would probably be bucks ahead just ordering an aluminum case from CB. It comes with all the case work already done at a decent price. Weight and some of the previous manufacturing problems are the only thing stopping me atm.

--louis

[Alan Uyeno]

LousB,

See if you can get the bushing reamed out to fit "standard" diameter lifters.

The berg 160,000 psi aka smith brothers is a light strong pushrod in comparison to a taper pushrod tapered from manton (significantly heavier but less prone to flex with even chevys). I'd go with the 160,000psi. I've even heard potential flexing with the GB pushrods but I've never had a problem.

At least with the GB 160,000psi you'll have less prone flex. Chromoly is the only thing I'll ever really use. Any metalurgy guy not in the automotive world would look at the two (chromoly and aluminum) and pick chromoly hands down.

[louisb]

Um, okay. Sorry, I am American so I can barely read Engrish much less any other language. But I appreciate your comments. (unless of course you were saying I should do something unseemly to a goat  )

--louis

[Fastbrit]

Um, okay. Sorry, I am American so I can barely read Engrish much less any other language. But I appreciate your comments. (unless of course you were saying I should do something unseemly to a goat  )

--louis

If he's Italian it translates as:
a six largest broken one in culo and figlo of vacca but a Troy cosi Troy that piu Troy e', e' not there useless that I piece of merda and bastard and merda and picio vent me with bastard you lurido of lurido a piece of merda.si stronzo coglione homosexual man and still merda merda

If he's Spanish..
sei grandissimo rotto in ass and figlo I gave to one vacca ma troia cosi troia Che piu troia non c'é, é inutile Che io my sfoga with lurido bastard I gave lurido pezzo to you I gave merda.si pezzo I gave merda and bastard and merda and picio stronzo coglione frocio and anchors merda merda

So from that I kinda gather the goat's looking pretty tempting to me!