Wannabee no more!

eric.henning

New member
Jan 31, 2000
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Well, picked up my "new" 1973 GMC 260 Sequioa last Friday! It is is extremely
clean shape, all original (bright green interior), pineapple yellow
exterior. Garage kept for at least the last several years. Looking forward to
some shake down trips then our big cross country trip in June.
(Philadelphia to California). I have all the records going back several years
and it has been well maintained. Only weak spot I may have is the radiator as
I've seen a few dribbles, but not sure if its the overflow tank. Need to buy
the maintainence books, who's a good source? Cinnabar?
others? How big a job to remove the radiator? Plan on adding a few gauges such
as tranny temp, tachometer, oil temp? anything else deemed
important? Where's the best place to hook up these temp sensors?

Can't wait to get on the road!

eric henning
eric.henning
73 Sequioa
Doylestown, PA
 
>
> Well, picked up my "new" 1973 GMC 260 Sequioa last Friday!

Congratulations and welcome to the assylum - er, I mean club!

> Need to buy the maintainence books, who's a good source?
> Cinnabar? others?

C'bar is the only "official" source. Unless you can find a used set, just
order from C'bar - cheap considering what they'll save you in the long run.

> How big a job to remove the radiator?

Not too bad - just finished mine. Raise the coach about 16 inches and
support securely. Disconnect the oil cooler lines, trans cooler lines and
radiator hoses. This is the first place you may run into trouble. The
cooler lines may be rusted up which will require replacement(I had to cut
mine to get them off). If you don't already have the braided stainless oil
cooler lines, order a set from JR Slaten(jrslaten). If you don't
want to get new hard lines bent for the trans cooler, he can sell you
braided stainless lines for that too. Remove the bolts holding the A/C
condensor to the radiator frame and tie the condensor forward out of your
way. Remove the four bolts holding the top of the radiator frame to the
bottom.

Now go get some help, if you haven't already. This thing is heavy and
you'll be on your back. I did it by myself, but don't recommend it.

Gently(ever so gently) pry the radiator up until the bottom clears the
radiator frame. Push the bottom forward and lower the radiator out. Be
careful not to mess up the radiator hose fittings as they damage easily.

You'll probably need a recore. Be sure to get a four-row with at least 13
fins per inch. Check for rust in the bottom of the radiator frame. You
might want to plan on changing the radiator support bumpers - I found out
they're still a standard GM part(the number in the 78Z book had been
superceded), but had to buy five to get the two I needed. If you're
interested, I'll sell the remaining ones for $4 a piece.

Good luck!
Patrick
 
For guages, go with digi-panel. Nice and easy to install... has trans temp, engine
oil, oil pressure, and battery voltage. For manuals, go with cinnibar. They are a
trusted source of info, manuals, etc. Also, if radiator is a problem, get it cored
and cleaned out. It will work better.
al

> Well, picked up my "new" 1973 GMC 260 Sequioa last Friday! It is is extremely
> clean shape, all original (bright green interior), pineapple yellow
> exterior. Garage kept for at least the last several years. Looking forward to
> some shake down trips then our big cross country trip in June.
> (Philadelphia to California). I have all the records going back several years
> and it has been well maintained. Only weak spot I may have is the radiator as
> I've seen a few dribbles, but not sure if its the overflow tank. Need to buy
> the maintainence books, who's a good source? Cinnabar?
> others? How big a job to remove the radiator? Plan on adding a few gauges such
> as tranny temp, tachometer, oil temp? anything else deemed
> important? Where's the best place to hook up these temp sensors?
>
> Can't wait to get on the road!
>
> eric henning
> eric.henning
> 73 Sequioa
> Doylestown, PA
 
Eric
Congratulations! I'm familiar with that coach and it is a well
maintained beauty. Good Luck and welcome to the fold.

Dick Missett
73 ex-Sequoia
Wyoming PA.