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Gwdghiaguy
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Joined: December 06, 2013
Posts: 340
Location: Greenwood, SC
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 Posted: Sat Oct 14, 2017 12:40 pm Post subject: 40 hp cylinder head-am I shopping for another? |
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Is this head shot or not? From my 63 camper. Is this called the valve guide boss? It was split in two places and I was able to pick out the pieces with my fingernail:
thanks,
byron
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UK Luke 72
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Joined: September 07, 2011
Posts: 2867
Location: Little Britain
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Gwdghiaguy
Samba Member
Joined: December 06, 2013
Posts: 340
Location: Greenwood, SC
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| Posted: Sat Oct 14, 2017 1:08 pm Post subject: Re: 40 hp cylinder head-am I shopping for another? |
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| UK Luke 72 wrote: |
| It can be milled flat, counterbored and then a 'prosthetic' boss fitted. That's what my machinist suggested doing on some nice ported heads that had thin bosses that could've broken when he changed the guides... |
would it be cheaper to just buy another? found lots for sale in the classifieds.
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1957 Oval Window
1963 Alabama Camper Bus
1971 Ghia
1971 Baywindow Bus
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UK Luke 72
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Joined: September 07, 2011
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Location: Little Britain
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modok
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Joined: October 30, 2009
Posts: 26790
Location: Colorado Springs
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| Posted: Sat Oct 14, 2017 1:40 pm Post subject: Re: 40 hp cylinder head-am I shopping for another? |
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| it's not a critical problem. It will still function fine so you don't NEED to fix it, but if you will be replacing the guides then you should fix it. |
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FeelthySanchez
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Joined: February 03, 2011
Posts: 1349
Location: Now is that a real poncho, or a Sears poncho?
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| Posted: Sat Oct 14, 2017 4:46 pm Post subject: Re: 40 hp cylinder head-am I shopping for another? |
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I've seen these repaired a couple ways:
1) By welding up the broken boss,
2) Pull the guide, spotface it down, then turn/install a replacement section, or
the simplest way: just insert a stack of appropriately-sized flat washers. If it needs a new guide anyway, this last suggestion may be the simplest hack/fix.
But, that's an early-pattern head there w/ round rocker bosses & (possibly still) the troublesome long rocker studs (which were major headache material).
If long studs are still present, may have to add conversion studs to the bill - if ya can find some. Regardless, G'luck!
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| modok wrote: |
| I would like if you had enough clue to communicate what you are doing. |
| Ryan Tucker wrote: |
| Enough clue..Whats that mean? |
| OldIronSpine wrote: |
I'm not sure how compression works.
Turbos don't produce torque, they produce HP. Instead of torque.
The real problem with NA engines is you don't hear the nice whine of the turbo as it spools up.
Before I commit, I'm going to do more research because I don't really know what piston rings are. |
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anthracitedub
Samba Member
Joined: June 20, 2007
Posts: 3241
Location: Michigan
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| Posted: Sat Oct 14, 2017 6:02 pm Post subject: Re: 40 hp cylinder head-am I shopping for another? |
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| If you replace the head, make sure it matches the other head... cc's, step, etc... |
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