Very tight valve clearance on rebuilt engine

[orwell84]

They do bushings and resize big end. Will balance for another $25. Rod bolts are not new.

[Wildthings]

[orwell84]

So which option do you think would be best? Thanks.

[Wildthings]

By the time you have shipping both from and back too EMW I would suspect that the cost will be about the same. Your decision might well hinge on how well you know your local guy.

Van Cafe has reconditioned WBXer rods with new bolts pretty cheap, you might call them and see if they can supply rods for a Type 4.

[orwell84]

I like my local guy. He doesn't talk much, but got across that he does 3 angle valve jobs before I could talk his ear off about what I don't know. He doesn't seem to think that VW's are special. He tells me what he can't do. He said that he could check my rods for straightness and do the bushings, but I had to provide the wrist pin I would use. Seems pretty straightforward.

[SGKent]

[1967250s]

[orwell84]

Thanks so much. Will do!

[SGKent]

T4 models do not peen
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin

[orwell84]

Anyone know a source for rod nuts and studs or at least nuts? I have not been able to find them. Is there a substitute? Thanks.

[scrivyscriv]

[Wildthings]

I just get such things from my local automotive machine shop. I suspect that most any decent FLAPS could order them for you and you could also get them from places like Summit Racing. Have you checked the Type 4 Store?

[SGKent]

912/E and 914-4 use 056-105-427-M100

the regular VW fiche does not distinguish between the T1 and T4, and uses 113-105-427 The T4 engines I have had apart all used the Porsche nut so there may have been a footnote in the original fiches that does not show in what is available online today.
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin

[orwell84]

Just an fyi. Webcam solid lifters are taller than stock. Also checked both with a pushrod. Webcam lifter and pushrod combo is longer than when combined with stock. This is why shimming the rocker shafts improved valve train geometry, which was the reason for this thread in the first place.

[SGKent]

webcam does not build their own lifters. The ones I got from them with a new cam had perfect geometry and required no shimming.
_________________
“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin

[orwell84]

Thanks. That's good to know. I would imagine the lifter difference wouldn't effect valve geometry significantly then. Most likely has to do with the mish mash of old and worked over parts that made up my engine when it came to me from GEX in 1996. Since there is very little of that engine I will be using in my current build, setting up valve geometry will involve completely different variables.

[orwell84]

So I am finally reassembling my engine. I am at the point of tinkering with deck height. With my current selection of parts, I an getting a CR of 7:1. I could get some thinner shims and maybe get to more like 7.7. I know I have to respect having a minimum deck height of.040. Since I am weak on engine theory, I was wondering if there was a significant difference between the two CR figures. Thanks for the help.

[SGKent]

[richparker]

^I'm under the impression that premium gas should be used on all ACVW engines both T1 and T4.
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