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Threaded Core Plug or ?


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3 replies to this topic

#1 JohnH

JohnH
  • LocationToronto

Posted 06 May 2015 - 11:12 AM

What is the threaded plug on the rear driver side of the L-series block just bottom right of the last welch plug on that side ?

 

 

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#2 cgsheen

cgsheen
  • LocationArizona

Posted 06 May 2015 - 11:36 AM

Coolant drain...


1974 "Early" 260Z: '83 L28ET - F31 ECU MAF Coil TPS - T04E - FMIC - 400cc Injectors - MTX-L wideband - NIStune enabled! - '83 5 speed - coilovers - Big Brakes up front - Sakura Garage, Tempe, AZ


#3 Tony D

Tony D
  • LocationReno NV & Lucena Quezon, Philippines

Posted 11 May 2015 - 03:39 AM

It's the water pickup for the heater in a Nissan Patrol...


Misanthropic Anthroparion Class 5 Hoarder, aspiring to posthumous fame as my containers are cut open and the market floods with crap I've squirrelled away over the years! I endeavour to persevere...

#4 JohnH

JohnH
  • LocationToronto

Posted 25 June 2015 - 02:24 AM

Just a follow up. Its interesting that of the various FSM & Haynes I have for 70 - 83 that only the 79 FSM ever mentions it in an ambiguous way when draining the coolant. Anyways I used the drain plug to clear out most of the coolant in the block when I had the header & the triples off. I poured 4 liters of Evapo-Rust in the block & let it sit for a few days to clear out any internal rust.






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