[Roadsters] Smoker

[Jim Gammon]

Check the valve clearance first.

--- On Wed, 8/18/10, Pat Horne <pat at hornesystemstx.com> wrote:


From: Pat Horne <pat at hornesystemstx.com>
Subject: [Roadsters] Smoker
To: "datsun Roadster List" <datsun-roadsters at autox.team.net>
Date: Wednesday, August 18, 2010, 7:18 AM


I tried sending this yesterday, but it didn't go.

Try connecting an air compressor the #2 spark plug with both intake an exhaust
valves closed. Listen at the carb inlet, tail pipe, oil filler and see if any
air is escaping. Also check the cap on the thermostat housing, looking for
bubbles. Finally, spray the joint between the head and block with soapy water
and see if any bubbles are blown.

Good luck.

Peace,
Pat

Thusly spake Eddie, On 8/16/2010 6:45 PM:
compression should be close to equal in all cylinders.

Clearly #2 has an issue.  It could be rings, OR it could be a bad valve too.

Perhaps a valve isn't seating properly.  If you're lucky, it might be just
that.

Eddie


Dave Cooke wrote:
OK, Mike, this can't be good news...

this evenings Compression test results

Cylinder
1- 200
2- 70
3- 180
4- 190

Cylinder with oil
1-220
2-75
3-195
4-205

-Dave Cooke

-- Pat Horne, Owner, Horne Systems
(512) 797-7501 Voice        5026 FM 2001
Pat at HorneSystemsTx.com    Lockhart, TX 78644-4443
www.hornesystemstx.com
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