I used to use a cylinder leak down gauge to see where the problem is
located. Basically what you do is test each cylinder one at a time by
pulling each sparkplug and bring the cylinder up to the compression stroke
"both valves closed", insert and adapter into the sparkplug hole that then
attaches to a regulated shop air supply line. As the air is applied into
the cylinder you listen for air at :
1. The tailpipe bad exhaust valve
2. Radiator or valve cover top "remove filler cap" for bad head
gasket/cracked head or block.
This tool might be available at a tool rental yard in your town.
Joe
----- Original Message -----
From: David <David@gardener.com>
To: <MKlepp4335@cs.com>; <old-chevy-truck@onelist.com>;
<oletrucks@autox.team.net>
Sent: Wednesday, January 12, 2000 4:54 PM
Subject: Re: [oletrucks] '48 Vs Y2K update
> Mike,
>
> Beg, borrow, or rent a bore scope.
>
> I was a skeptic until a mechanic friend showed me his and all he could
tell
> on a head with out removing anything but the spark plugs.
>
> I have seen a hole in a piston, a cracked head (the cylinder was perfectly
> clean from the steam in that cylinder, and leaking valve stems.
>
> Really a neat too.
>
> Another alternative might be for a mechanic to perform the test for you.
>
> Good luck.
>
> David
>
> -----Original Message-----
> From: MKlepp4335@cs.com <MKlepp4335@cs.com>
> To: old-chevy-truck@onelist.com <old-chevy-truck@onelist.com>;
> oletrucks@autox.team.net <oletrucks@autox.team.net>
> Date: Wednesday, January 12, 2000 6:49 PM
> Subject: [oletrucks] '48 Vs Y2K update
>
>
> |First, thanks to all those who provided input in my New Year's Eve
> stranding.
> | I have checked everything (twice) and still cannot make this 235 run
more
> |than a few seconds. With much pumping and choking, the truck will fire
but
> |soon die. The real problem is revealed by the large cloud of white smoke
> |(steam) that comes from the tail pipe. I'm guessing that the head gasket
> is
> |blown, head or block cracked allowing coolant to be sucked into the
> |combustion chamber. The one thing I fail to understand is that most
> vehicles
> |with blown gaskets and/or cracked castings continue to run, some quite
> |smoothly. Mine will bearly fire and only run briefly.
> |Believe when I say I have checked and redone everything. I guess my last
> |resort is to pull the head and see if I can locate the problem. This is
> very
> |frustrating since I consider myself a fair wrench and have built and
> repaired
> |many different type motors in the past. Any more things I should check
> |before I jerk the head? I heard Dan Rather talking about global warming
on
> |the news tonight, what do you think? Thanks.
> |Mike Klepp
> |'48 3100
> |Wichita Falls, TX
> |oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
> |
>
>
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
|