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chrswlsn
Samba Member
Joined: October 13, 2009
Posts: 160
Location: New Jersey
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 Posted: Tue Mar 21, 2017 6:26 pm Post subject: Case specs |
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I have reach a point to where I need to start doing something of my own machine Work on the heads and cases at the shop where I work
I am looking for info on bore spacing and head stud spacing for making jigs to use on heads and cases After long searches for drawings and specs with all the info on it I must send out this request. Thanks for the help. |
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DeathBySnuSnu
Samba Member
Joined: August 25, 2012
Posts: 1183
Location: MS
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| Posted: Tue Mar 21, 2017 6:30 pm Post subject: Re: Case specs |
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Do not know the accuracy. I collect stuff as I run across it.
Somwhere I have the bore centers, but I fint see it right now.
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modok
Samba Member
Joined: October 30, 2009
Posts: 26789
Location: Colorado Springs
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| Posted: Tue Mar 21, 2017 6:32 pm Post subject: Re: Case specs |
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If you measure the parts you will find they are even MM sizes, except for cam bearing bore, it's something and and a half.
I have not written it down, as it's simple. Bore space is.....112mm, easy to remember because nearly same as chevy 350!
Crank center to cylinder seating surface is 99.75-100mm |
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chrswlsn
Samba Member
Joined: October 13, 2009
Posts: 160
Location: New Jersey
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| Posted: Tue Mar 21, 2017 6:53 pm Post subject: Re: Case specs |
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Thanks. I was going to send Modok a private message.
I have measured and there seams to be some"float" in some of the cases difference |
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modok
Samba Member
Joined: October 30, 2009
Posts: 26789
Location: Colorado Springs
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| Posted: Tue Mar 21, 2017 6:58 pm Post subject: Re: Case specs |
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Vw never did publish sizes for some things, so we have to estimate.
We should put it all in one place, someday. |
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chrswlsn
Samba Member
Joined: October 13, 2009
Posts: 160
Location: New Jersey
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| Posted: Tue Mar 21, 2017 7:04 pm Post subject: Re: Case specs |
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| While your on line Modok, any boring guides you like for heads and cylinders. Seems to be a few out there some are$$$$ |
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chrswlsn
Samba Member
Joined: October 13, 2009
Posts: 160
Location: New Jersey
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| Posted: Tue Mar 21, 2017 7:09 pm Post subject: Re: Case specs |
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| And the case? The jigging and mounting on the mill should be mainly parallels and clamps. |
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modok
Samba Member
Joined: October 30, 2009
Posts: 26789
Location: Colorado Springs
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| Posted: Tue Mar 21, 2017 7:16 pm Post subject: Re: Case specs |
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no idea. It seems logical idea, for instance to bore an engine to match a torque plate, but I've never done it that way, except a few times when a guy brought a torque plate and asked it to be done.
In most cases I measure before hand, and as I am indicating it in, move it the way it needs to go. |
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chrswlsn
Samba Member
Joined: October 13, 2009
Posts: 160
Location: New Jersey
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| Posted: Tue Mar 21, 2017 7:23 pm Post subject: Re: Case specs |
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| And type or brand of fly cutter? |
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modok
Samba Member
Joined: October 30, 2009
Posts: 26789
Location: Colorado Springs
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| Posted: Tue Mar 21, 2017 7:36 pm Post subject: Re: Case specs |
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I don't know who makes what.
Local VW shop has cutters setup for the case, such that it bores all three steps at once, and if i was going to buy a special tool that's what I'd look for.
For cutting heads if you have time to burn, a "expanding facing head" is good to face heads, as you can cut chatter free on just about anything.
I do WBX heads for the local shop because trying to cut that whole surface at once it's too much. They have a LOT of surface.
I'd bolt the case together to bore and face for the cylinders, by standing it on it's cylinders, or making shorter cylinder-like pieces to stand it on. makes sense to me.
Others do it one half at a time, and that's probably fine too, but not sure why. |
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