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Re: [Roadsters] --> Re: 1970 SPL311 Engine Problem.

To: datsun-roadsters@autox.team.net
Subject: Re: [Roadsters] --> Re: 1970 SPL311 Engine Problem.
From: RWM <RWM@RWMann.com>
Date: Fri, 11 May 2012 07:18:14 -0400
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#2 and #3 spark wires reversed on distributor cap?


On 5/11/2012 1:34 AM, Gary and Cindy Ault wrote:
Pete,

Your message didn't say anything about how the valves were set, nor what measurements were taken to ensure that the lift and duration are uniform on all four cylinders.

#2 is essentially fed from the front carb, and #3 from the rear. If #1 and #4 are running OK, the answer would appear to be with something other than the distributor or carbs.
Gary

----- Original Message ----- From: "Pete Koernig" <tpb73@yahoo.com>
To: <datsun-roadsters@autox.team.net>
Sent: Thursday, May 10, 2012 8:33 PM
Subject: [Roadsters] 1970 SPL311 Engine Problem.


Rebuilt engine, threw mass quanities of new parts at it in addition to redoing
carbs,  new points, plugs, wires, cap, condenser, etc etc.

Here's the heart
breaker:
#2 and #3 cylinders are not producing. #1 and #4 are fine, pull wire
on 2 or 3 and rpm drops about 20-30 rpm. Pull wire on 1 or 4 engine falters unless reconnect to spark plug. Good snap acceleration. Uni-Syn pretty well
matched (considering engine miss).
Much black smoke --- engine running rich to
keep running about 1000 rpm.  All four cylinders test 155 to 160 pounds
pressure at cranking speed. Cannot detect an intake manifold leak.
Enough
spark to melt your ear wax, to all four cylinders.

Now what?

Pete Koernig
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