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Re: Midget Pistons Question

To: "Adrian" <adrian@utk.edu>, "Spridgets" <spridgets@Autox.Team.Net>
Subject: Re: Midget Pistons Question
From: Larry Macy <macy@bblmail.psycha.upenn.edu>
Date: Fri, 28 Nov 97 22:34:23 -0500
Reply-to: Larry Macy <macy@bblmail.psycha.upenn.edu>
Sender: owner-spridgets@Autox.Team.Net
On 11/28/97 10:17 PM so and so  Adrian said. (And I quote)

>Apparently my mail server decided to lose all my mail from
>today...great!  Hope I didn't miss too much!
>
>I spent the entire day trying to reassemble the 1500 engine.  All I got
>done was getting the pistons in and bolted to the crank.  Mounted the
>flywheel and went to turn it.  Half a turn and "thump!"  Turned it the
>other way and "Thump!"  After mumbling a few explitives, I looked to
>make sure that the arrows all pointed to the front of the engine, and
>they did.  It seems that the machine shop put the rods on the pistons
>backwards, which is something a better trained eye would have noticed
>before installation, but I don't have one of those...  Anyway, the caps
>are bumping into the block wall instead of spinning freely all the way
>around, as normal engines do.
>
>First of all, the pistons are from VB:  part no:  1-3156
>Compression Ratio:  9.00/1, Head shape:  Flat, # of rings: 3
>
>My question is this (and I am just asking to make totally sure):
>
>Is there a MECHANICAL reason why I can't just turn the pistons around so
>that the arrows all point to the REAR of the engine?  I don't know
>enough about that sort of thing to know whether the pistons have arrows
>to guide you in installation of the rods so you will have a point of
>reference to install them all the same way, or if they are marked
>because mechanically they won't work any other way.  I know the answer
>(back to the machine shop) but I am just too irritated to accept it at
>this time.
>
>I called two brit car mechanics and one didn't remember if it mattered
>and the other more or less swore by the arrows.  Anyway, thanks!
>
>adrian
>
Adrian
Are the arrows on the pistons or on the rod caps? If on the pistons do 
the pistons have half moon cut outs like a dent in the top of the piston? 
if they do ( and they are in the right position in the first place) You 
are screwd. If they are flat it shouldn't be a problem with rotating them.
I will be corrected.

Larry Macy
78 Midget
>-- 
>__________________________________
>email:  adrian@icx.net
>       adrian@utk.edu
>
>"How about going back to sleep for
> a few minutes and forgetting all
> this nonsense"  -Gregor Samsa
>
> http://user.icx.net/~adrian/
> http://user.icx.net/~adrian/midget/
> __________________________________

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