Re: [Amc-list] 287 problems

[JOE FULTON <piper_pa20@xxxxxxxxxxx>]

And just in case your timing marks are off on the
balancer, you can time it at hot idle with a vacuum
gauge.  Hook a vacuum gauge to a source of manifolf
vacuum (below the throttle plates) and adjust the
distributor either way until you get maximum vacuum on
the guage, which should be about 18-20 inches of Hg. 

The outer ring of the balancer has been known to slip
(and I had one rebuilt and the shop reindexed it
incorrectly).

Good Luck,
Joe Fulton

--- Tom Jennings <tomj@xxxxxxx> wrote:

> On Sun, 2007-06-10 at 12:31 -0700, d stohler wrote:
> > ok, things already done to my 287 while it is
> STILL
> > having this problem are as follows. 
> > 
> > 16 new pushrods
> > 16 new lifters
> > 8 new spark plugs
> > 8 new plug wires
> > 1 new distributor cap
> > 1 new rotor
> > 1 accel coil
> > 2 heads removed, valve seats resurfaced, valve
> gides
> > resurfaced
> > 1 new timing chain
> > 1 new crank gear, no cam gear as it was not
> availible
> > oil changed
> 
> Then it's probably none of those things! Short of
> crushed exhaust (which
> you can usually hear at the tailpipe) it's gotta be
> carb/ignition stuff
> or cam timing.
> 
> If you did all of the above, short of a terrible
> bottom-end problem
> hiding you'll have a nice motor when you do get it
> going.
> 
> Do the basics... it runs, right? Pull the distrib
> hose off and plug it,
> leave it off until later. Make sure static timing is
> close to TSM at
> least, rev it up, it should go up to 20 degrees more
> advance. If not,
> distrib is broke.
> 
> Etc. Step at a time. It'll take longer to take
> shortcuts than it will do
> simply go through all the steps. Assume nothing!
> 
> 
> 
> > 
> > i am closing in on the $400 mark invested into the
> > engine alone. it is friggin frustrating. i am
> going to
> > try the exhaust thing. im sure it is not the carb,
> as
> > i put on a week old remanufactured motocraft 2100
> > carb, ran GREAT on the 70 torino gt it was for.
> there
> > was only a marginal increase in rpm's. maybe 100
> > rpm's. i just got a compression testor. that will
> be
> > the next thing to check. when i had the heads off
> > however, the cylinders looked great, no ridge or
> > nothing. the top rings i could see did not have
> any
> > large gap or nothing in them. the mechanical
> advance
> > seems to be working. in park with my timing light
> and
> > the timing mark moves. while having it in gear,
> and
> > trying to get it to move, adjust the distributor,
> no
> > effect. hear it start knocking when it gets to far
> > advanced thats about it. 
> > 
> > i am going to disconnect the manifolds, run it
> strait
> > out of the heads and see what happens. annoy the
> heck
> > out of the neighbors. 
> > 
> > dave stohler
> > http://picasaweb.google.com/das24rules
> > 
> > 
> >        
> >
>
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