Re: [Spridgets] Guidance Needed on Rebuild of Head

[dlancer7676@comcast.net]

Doug:

You will probably get all sorts of replies on this, but rebuilding your own 
head is pretty straightforward and interesting.  I think the machine shop would 
be best to do a couple of basic operations, such as milling the head to insure 
it's trueness and installing the valve guides  and seats if you need them.   
They could advise you on this as well.  I have used a couple of local machine 
shops--one of them is strictly a racing shop that usually deals with the big 
throated heavy-duty high HP engines--I guess my little engines compare with the 
.049 engines that we used to put on model airplanes to these guys. LOL

I have rebuilt a couple of heads--you have to use your good judgement as to 
whether to install new valves, which require grinding to "dress" them, or 
whether your old valves are grindable.   You might want to install new head and 
manifold studs while the head is off, since each torquing of fasteners 
stretches the metal, and hard telling how many times over the past 30+ years 
the studs have been torqued.  

I built a little workshop "stand" when I rebuilt my first head that has come in 
real handy.  It was made from scrap 2x4 lumber and has a platform to rest the 
head on and numbered holes to put the valves in as they are removed. I pass the 
valve stem through it's spring and put it into the hole, insuring that 
everything is going back the same as it came out.  

Just a few thoughts from the country.


--David C.
WOULD A FLY WITHOUT WINGS BE CALLED A WALK?


 -------------- Original message ----------------------
From: Doug Altman <doug_altman@yahoo.com>
> This winter I will probably have to rebuild the head assembly on my stock 
>Bugeye 
> A Series 948 cc serial 9CUH20079 engine.&nbsp; Do it myself?&nbsp; Have a 
> reputable shop rebuild it?&nbsp; Purchase a rebuilt head assembly and send 
>them 
> my core?&nbsp; Who for parts?&nbsp; Who for machining?&nbsp; Who for a 
>complete 
> assembly?&nbsp; Need guidance from the team.&nbsp; Thanks.&nbsp; Doug 
> Altman&nbsp;in central Michigan&nbsp;&nbsp; ....o~'o&nbsp;
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