[Roadsters] 1500 G series motor

[jover4x4 at aol.com]

My prior email was sent before I could finish.  If the repair was done in  
the car some of these steps were possibly not done.  In addition the rod  
should have been checked and resized if needed.  

Just my thoughts.

John Over
Wycroc
Connected by DROID on Verizon Wireless

-----Original message-----
From: "jover4x4 at aol.com" <jover4x4 at aol.com>
To: BARTERDUDE at aol.com, datsun-roadsters at autox.team.net
Sent: Fri, Oct 7, 2011 18:04:54 GMT+00:00
Subject: Re: [Roadsters] 1500 G series motor

My first thought is poor machine work and improper inspection prior to  
assembly.  Block should have been checked and line bored if needed. Crank  
journals, both mains and rods checked for size.  I always double check ALL  
bearings with plastigage during assembly.   The oil galleys in the block AND  
 
the crank should have been cleaned prior to assembly.  If the repair was  
done in the car somwone

Connected by DROID on Verizon Wireless

-----Original message-----
From: BARTERDUDE at aol.com
To: datsun-roadsters at autox.team.net
Sent: Fri, Oct 7, 2011 16:07:37 GMT+00:00
Subject: [Roadsters] 1500 G series motor

Okay, I've got a question.  I had my original 1500 G series motor  rebuilt 
on the top and bottom end.  The bottom end was done due to the #4  rod 
bearing going bad, and it scored the crank so bad, it could not be  trued.    

So we 
pulled the crank out of a '64 1500 G motor and had it trued  (supposedly).  
The motor had about 400 - 500 miles on it and all the sudden  it spun 
another bearing.  So what's the culprit?  Bad machining, bad  assembly, bad 
parts, ????
 
 
Gary Lasater  - Parker CO
founding member _www.WyCROC.org_ (http://www.wycroc.org/)  / 
_www.ZRoad.org_ (http://www.zroad.org/)  
1963 SPL310-00161C  (Single Carb)
1963 SPL310-00289B (Single Carb)
1964  SPL310-01289
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