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23rd September 2020, 18:20 | #1 |
Gets stuck in
MG ZT 135+ Diesel Auto Mk2. Nisan Micra 1.4 SVE Auto. Join Date: Apr 2015
Location: Wellingborough, Northamptonshire.
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Siezed spark plugs removal ?????
My trusted garage have rung to say they can't get the spark plugs out my Micra, and didn't want to risk snapped plugs or damaged head, and we're unwilling to carry on without my permission.
Told them to leave it for now. Any tips from the experts on here how to get them out please.
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23rd September 2020, 18:48 | #2 |
Premium Trader
Rover 75 Join Date: Nov 2010
Location: Devon
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Lots of plusgas while the engine is cold then warm it up to running temperature then go for it!
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Lest we forget..
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23rd September 2020, 18:57 | #3 |
This is my second home
MG ZT and Rover 75, Join Date: Jul 2013
Location: Wigan
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Heat and Patience.
I learned from a master, warm up the engine till it's very hot and then tighten the plugs a degree. If the plugs move then it's a quarter turn to undo and then tighten again, the next turn will go beyond the quarter turn and back again, repeat until free. If you think you've damaged a thread then you get an old plug, cut a V shape into it right to the end of the threads at 45 degrees and pack the V with some sticky grease, it then makes a tap to renew the thread and catches any stray swarf.
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26th September 2020, 12:26 | #4 |
Loves to post
Rover 75 Connoisseur SE. Auto. Saloon. SE Join Date: Apr 2009
Location: Melbourne
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A little bit of copper grease helps.
Our local workshop proprietor (and member of our local club) smears a dab of copper grease on the threads. Also on parts such as wheel nuts. Never seems to have any trouble extracting items prepped this way.
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26th September 2020, 20:12 | #5 |
I really should get out more.......
A Reasonably Priced Car Join Date: Jan 2014
Location: Burton Latimer
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Injector crack spray (Available from ECP)
Used to free off injectors that are seized in place. |
28th September 2020, 14:20 | #6 | |
This is my second home
1.8t Tourer Join Date: Oct 2011
Location: Tanelorn
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Quote:
Grease on spark plug threads, even copper grease can be an effective insulator preventing the plug from earthing (cue several hours trying to work out why an engine won't start) a small smear can be got away with - but not needed. Grease should never be needed on either spark plugs or wheel bolts/nuts.
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28th September 2020, 15:33 | #7 | |
Loves to post
Rover 75 Saloon Join Date: Sep 2020
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Quote:
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28th September 2020, 20:26 | #8 |
This is my second home
R75 Saloon. Join Date: Feb 2009
Location: France/or Devon.
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Not a lot of use to the guy with the seized in plugs to help him get them out.-----Go stand in the corner.-------------------------
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28th September 2020, 20:30 | #9 | |
This is my second home
R75 Saloon. Join Date: Feb 2009
Location: France/or Devon.
Posts: 14,003
Thanks: 3,851
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Quote:
A shocking reply, but true.---- |
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28th September 2020, 21:42 | #10 | |
This is my second home
MG ZT260 SE, MG ZT190+, MG ZTT 160, R75 Conn SE 2.0, R75 Conn SE 2.5 X 3, R75 Club SE 1.8, P5B Coupe Join Date: Jul 2009
Location: Keynsham, Bristol
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Quote:
As above, the way I've always done it |
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