Part 2: Reading Plugs, pistons, and valves (with Pics)

[Dave Zug.]

I think its usefulness is justified even if all I can see is the top of the
valve and injector tip. When I took my 125k stock TPI apart, there was
carbon buildup all around the injector tips. The valves had oil burn on them
too. I'm hoping theres no evidence of this in the new motor at 3k miles now.

I'll look at the little camera to see if the focal length can be shortened
some way.


----- Original Message -----
From: Marteney, Steven J. <smarteney at xlvision.com>
To: <gmecm at diy-efi.org>
Sent: Monday, December 04, 2000 9:21 AM
Subject: RE: Part 2: Reading Plugs, pistons, and valves (with Pics)


> Ummm, not such a far fetched idea.  The only limiting factor is the fiber
> bundle.  I don't know if one could get a cheap plastic bundle off the
shelf,
> nor how much it would be.  We have worked with a supplier to have some
> custom bundles made here and the NRE was $100k+, but that was for an
> application much different than your standard scope.  I'll look around and
> see if there is any inexpensive suppliers.  The only other issue I would
> have would be just the usefulness of it.  Getting that thing wrangled such
> that is was pointing exactly at the spark plug with the right light at the
> proper angle in focus............
>
> -----Original Message-----
> From: Bruce Plecan [mailto:nacelp at bright.net]
> Sent: Sunday, December 03, 2000 12:25 PM
> To: gmecm at diy-efi.org
> Subject: Re: Part 2: Reading Plugs, pistons, and valves (with Pics)
>
>
>
> Hahahahahah
> Hahahah
> hahah
>
> Ya every three months they run one down into my lungs, for taking samples
> during the biopsy.
> The Doc like GNs, just doubt he'd let me *borrow* the machine to take it
> down to the parking lot.
> LOL
> Hope ya can appreciate how funny this is to me...
> Bruce
>    BTW, I have seen an automotive version for sale, seems like it was
> $4,500, but was some time ago.
>
>
> From: "Dave Zug" <dzug at delanet.com>
> Subject: Re: Part 2: Reading Plugs, pistons, and valves (with Pics)
> > ever had access to an arthroscope (SP?) I'd like to borrow one of those
> > babies for a day. With fibre and little PC cameras so cheap nowadays
seems
> > like a great DIY project! Take a $19 PC camera apart, extend the wiring
to
> > the lens , add a dozen strands of fibreoptics to a fibreglass rod for a
> > light source and shove it down an intake port and maybe into the open
> valve?
> > is 0.510" too narrow for one of those lenses?  oops I guess you need a
way
> > to direct the lens to point other directions.. hmmm..
>
> > From: Bruce Plecan nacelp at bright.net
> > > Ahh, got what ya mean.
> > > think it's Jegs has a plate with a plug tapped hole in it.
> > > Then you can scribe a line to show where cylinder lines up per plug,
> > > supposedly for faster indexing.
> > > Me, I gota couple 3 packs of shims, a mike, and a magic marker (ie
> cheap)
> > > Bruce
> > > > Oh definetly not the place for indexing.. the serious drag guys
obsess
> > > over
> > > > that level of detail (I've read).
> > > > I thought the detail would be interesting. While the heads are off
> > though
> > > > its good to screw the plugs in and see where they end up, depthwise.
>
>
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