Yeah, that bolt hole misalignment can happen when the head is milled too
much. If you don't catch it on preassembly, you're stuck. There's no way to
drill or file out that hole once the head is on.
Glad to have all you guys back. It was a darn quiet week there, with nothing
much but spam.
> -----Original Message-----
> From: owner-datsun-roadsters@Autox.Team.Net
> [mailto:owner-datsun-roadsters@Autox.Team.Net]On Behalf Of Ronnie Day
> Sent: Saturday, September 25, 2004 6:30 PM
> To: Roadster List
> Subject: Progress?
>
>
> I actually worked on the car quite a bit today in spite of healthy rain
> through mid day from Ivan Revisited. I was able to get the gas gauge
> working. It's amazing what a little cleaning on contacts and
> terminals with
> a copper brush followed by a liberal application of petroleum
> jelly will do
> for conductivity. ;>) The electrical system is really in very
> good condition
> but I do want to clean up some ground connections and add star washers to
> them. The star (serrated) washers cut a bit into the pieces being
> connected
> and improve the quality of the connection.
>
> Not so good luck with the timing chain. The upper tensioner is secure and
> there's right at 1/2 inch distance between the tensioner body and the back
> side of the "foot". However the small bolt that should be securing tab on
> the carb side upper chain guide to the front cam tower has gone walkabout
> and the chain guide is leaning forward maybe 1/8 inch and in toward the
> engine centerline a bit. What worries me most is that the bolt hole in the
> guide is noticeably above and to the right, looking from the front, of the
> hole in the cam tower. Way too far to get a bolt started I think
> as I didn't
> have the correct thread bolt handy to try it. I also tried to measure the
> head thickness with my inexpensive dial calipers and got something in the
> mid 4.4xx area, but had the cam cover back on at that point so I'll check
> the measurement again as best I can tomorrow.
>
> If the head does measure thin I'll probably try moving the cam up with
> shims, but I'll want to pull the head and check the cam tower
> bores as well
> as the head surface to make sure everything's straight and parallel.
> Probably won't hurt to have the chambers cced, too, if I do all
> that to see
> how big they are and if they measure close to each other.
>
> Aren't cars wonderful? Are we having fun yet? Actually, yes I am,
> but it's a
> good thing that this one's a toy that I don't HAVE to get back on
> the road.
>
> Ron
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