If you can look, or feel, there are 3
soft plugs on the bottom side of your
intake manifold. Leaks here can be very
hard to detect because the water hits
the exhaust system and evaporated
immediately. You may have to remove the
carbs and replace those soft plugs.
Tom
69 2000 "Mr. Hyde"
Portland, Oregon
http://www.fransfancies.com/datsun
-----Original Message-----
From:
owner-datsun-roadsters@autox.team.net
[mailto:owner-datsun-roadsters@autox.tea
m.net]On Behalf Of Tom Duffy
Sent: Wednesday, September 24, 2003 8:50
PM
To: datsun-roadsters@autox.team.net
Subject: Under carb coolant pipe: Repair
or replace?
Listers,
Having finally replaced the starter
motor on my
1600 '68 by dismantling it in place and
feeding the
parts through the gap between frame and
body
(Mike Young's idea), the roadster
started up great.
The next day I drove it to get the oil
changed and
drove to and from work. My wife was
going to use
it the next day, so early that morning I
checked
the fluids and started her up to warm
the engine.
Soon I had liquid pouring on the garage
floor...
It seemed to be coming from the hose
than connects
the under carb pipe to the heater core.
That figures,
because it got manhandled while working
the tools
to remove the starter. That hose is NLA,
so the
next weekend I got some generic 1/2" and
5/8" heater hose and a 1/2" inline
connector.
The local Kragen didn't have a reducing
coupler, so
I got the 1/2" inline from Orchard
Supply Hardware.
Having replaced the hose, I flushed the
radiator,
started her up again, but still it was
leaking. I tried
putting an extra hose clip on, but that
didn't help.
I tried to inspect the underside of the
pipe where the
leak was with a mirror, but I couldn't
get enough light
down there.
I started removing the connections for
the under carb
pipe, got totally exhausted, and finally
finished that today.
As expected, the pipe had developed a
crack that
wasn't inside the hose.
http://home.comcast.net/~tomuo/heatpipe1
.jpg
http://home.comcast.net/~tomuo/heatpipe2
.jpg
http://home.comcast.net/~tomuo/heatpipe3
.jpg.
I can't find this part on Rallye's site,
is it available,
or should I have this one welded? (or
simply JB
weld the hole?)
The heat shield that attaches to this
pipe is
rather spotty with rust, does it get so
hot that
a high temp paint is required, or will
regular spray
paint do the trick to clean it up?
This makes two problems in a row, I
think I'd better
change the tires to make sure the
obligitory third
one isn't dangerous...
Regards to all,
Tom Duffy
'68 1600
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