I don't know about that one. I have found when you cannot move the plug
when it is hot, wait until it cools down and it will. Pat
-----Original Message-----
From: matt12@mail.rcip.com <matt12@tuna.rcip.com>
To: datsun-roadsters@autox.team.net <datsun-roadsters@autox.team.net>
Date: Wednesday, May 02, 2001 7:38 AM
Subject: RE: Re: How tight should a spark plug be?
>I agree with Todd with regards to the penetrating oil.
>
>You also might try getting the engine up to normal running temperature
before attempting to remove the plugs. As aluminum expands at a faster rate
than steel, the plug hole should open up slightly more than the plug expands
in it thus making the plug a bit easier to remove without damage.
>
>Matt
>70 1600
>
>Original Message:
>-----------------
>From: Todd Osborn trosborn@california.com
>Date: Tue, 1 May 2001 21:20:57 -0700
>To: datsun-roadsters@autox.team.net
>Subject: Re: How tight should a spark plug be?
>
>
>Tom,
>Spark plugs should be torqued to 25 ft-lbs, however you can get some
binding
>between the aluminum head and steel spark plug that will make them
difficult
>to remove. Best to assemble with anti-seaze grease. Of course this doesn't
>help you much at this point. Try spraying the plug with liquid wrench and
>letting it soak overnight, may still take a fair bit of torque to break
>loose. If it is hard to turn after about the intial quarter turn, spray on
>some more oil and wait, otherwise you may get some galling which could
>damage the head.
>Todd Osborn
>San Jose, CA
>----- Original Message -----
>From: "Tom Duffy" <tomuo@pacbell.net>
>To: <datsun-roadsters@autox.team.net>
>Sent: Monday, April 30, 2001 9:24 PM
>Subject: How tight should a spark plug be?
>
>
>> I'm trying to replace the plugs on my '68 1600, but a short try
>> with a small T bar type spark wrench failed to budge #1. I'm
>> wondering how much pressure I can put on them without
>> damage occuring anywhere. Should I try spraying some WD40
>> to soak into the threads area? What is your experience
>> in removing old plugs?
>> The Engine runs fine now, so I don't want to try anything
>> that might put it out of commission for a while, seeing as
>> it's my daily drive (CA, Bay Area).
>>
>> Thanks,
>>
>> Tom.
>
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