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dieters
Samba Member
Joined: December 01, 2007
Posts: 40
Location: Menlo Park CA
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 Posted: Fri Jul 30, 2010 5:38 pm Post subject: H engines cases 1968 soft metal? |
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| So as I recall there were some cases made for about a half a year in 68 that had bad metal ( soft). Does anyone know the case numbers to stay away from? I've got a half a dozen or so old cases marked with an H prefix and don't want to waste time with machining bad metal. Thanks! |
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glutamodo 
The Android
Joined: July 13, 2004
Posts: 26310
Location: Douglas, WY
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| Posted: Fri Jul 30, 2010 6:59 pm Post subject: |
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I never heard that there was a specific range of H engines that were worse than others, it would be good to know though.
Last edited by glutamodo on Fri Jul 30, 2010 10:22 pm; edited 1 time in total |
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keifernet
Samba Search & Rescue
Joined: May 11, 2002
Posts: 19395
Location: Samba Center for Behavioral Science
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| Posted: Fri Jul 30, 2010 7:15 pm Post subject: |
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While this search does take you to quite a few threads, read the titles and you will find some info on the H case/stud inserts etc are the ones to look for.
http://www.thesamba.com/vw/forum/search.php?search..._chars=200
Basically F, H and B cases are for what ever reason some of the weaker in regards to head studs pulling ( no factory case savers) and possible weaker metallurgy/heat issues. |
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dieters
Samba Member
Joined: December 01, 2007
Posts: 40
Location: Menlo Park CA
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| Posted: Sat Jul 31, 2010 10:58 am Post subject: |
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| OK so the story goes, there was a foundry strike in mid-68? and Italian cases were made with poor metalurgy for 6months? until the strike was resolved. Anybody heard of that? |
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djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32586
Location: Reading Pennsylvania
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| Posted: Sat Jul 31, 2010 8:10 pm Post subject: |
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What I have gleaned from years of reading about engines and in particular the H case is that while there are "weaknesses" in the design, when compared with subsequent cases, that they are NOT bad cases at all for a stock build.
IF you desire to go with higher horsepower or any number of output increasing modifications then you would do well to move on up to a newer case which has greater strengths in given areas to enable them to take the stress and pounding that more HP produces.
Don't fear the H but respect it for what it is and use if for stock engines and you should be fine.
As with ANY case, check it carefully for warpage, cracks and evidence of severe pounding on the mains before investing money in it and using it.
Never heard of a strike and crappy Italian cases. IT will be interesting to see what information surfaces on this.
Dave
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http://www.thesamba.com/vw/forum/viewtopic.php?t=392473
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http://www.thesamba.com/vw/forum/viewtopic.php?p=6315537#6315537
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