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air cooled spark plug. ( sorted )

Posted: 21 Sep 2010, 21:36
by moggymorgan
hi all.
i spent most of this morning trying to replace a spark plug, got the old one out no prob. took nearly an hour fitting the new one through the hole in the tinware. was scared of cross threading it as i have read on here its easy to do and a hell of a job to put right. any tips on how to line the plugs up with the hole in the head please. got another 3 to do and dont have a spare week to faff about doing it. many thanks . john.

Re: air cooled spark plug.

Posted: 21 Sep 2010, 22:16
by A KIRK
put plug in plug socket and twist. if your only doing it by hand then you can't cross thread it. So it up hand tight then just nip it up with the ratchet.

The only time I;ve had an issue was when the tinware was out of place, but apart from that it should be quite simple,

If it feels tight then something isn't right

Re: air cooled spark plug.

Posted: 21 Sep 2010, 22:44
by moggymorgan
thamks a kirk. that was the problem i had, kept feeling lik it was cross threaded. i just could not get the angle right. maybe the tinware is out of line or maybe its just me being "cock" handed. i will try another one in the morning and see how it goes, thanks. john

Re: air cooled spark plug.

Posted: 21 Sep 2010, 22:46
by fullsunian
Get a bit of rubber hose, slide the plug in the end then twist the hose to start plug without crossing it Used in the trade for years

Re: air cooled spark plug.

Posted: 21 Sep 2010, 22:49
by horns
fullsunian wrote:Get a bit of rubber hose, slide the plug in the end then twist the hose to start plug without crossing it Used in the trade for years

Seconded - I keep a length of old vacuum hose in the toolbox for just this reason. Top tip.

Re: air cooled spark plug.

Posted: 21 Sep 2010, 22:56
by Grumpy Midget
Hi John". I used to have this problem when mine was an Air-Cold, you are always a little bit edgy as its very easy to cross thread if you dont have the special tool for the Aircooled plug fitment,
The easy way to get round this is to cut a length of hosepipe rubber/plastic tubing and with a little help of some hot water imerse the pipe end in the hot water then shove it onto the end of the plug, then you have more contact feel of the plug when inserting it into the thread. -----------------

Re: air cooled spark plug.

Posted: 21 Sep 2010, 22:59
by Grumpy Midget
mmmmmmmmmmmmmmmmm.
Must learn how to type with 2 hands,----------
Got beaten to the post using 1 finger on Keyboard---------------------

Re: air cooled spark plug.

Posted: 22 Sep 2010, 07:49
by moggymorgan
thanks for all the help guys. am off to slice up some hose and have a bash at them plugs. this club is just great. john.

Re: air cooled spark plug.

Posted: 22 Sep 2010, 07:49
by BOXY
Yep the piece of rubber pipe is the best way. It gives a lot more "feel" than using a socket and a bit more room when going in through the tinware.

If it all goes horribly wrong and the plug does start to cross-thread there is still hope. Get an old spark plug and saw cut four equally spaced slots into the threaded end to make a sort of tap, and use it to carefully re-cut the lead on the thread.

It does work, just don't ask how I know.

Re: air cooled spark plug.

Posted: 22 Sep 2010, 09:22
by moggymorgan
thanks for that but i hope it wont come to doing it.

Re: air cooled spark plug. ( sorted )

Posted: 23 Sep 2010, 20:10
by moggymorgan
i used a bit of hose and hey presto job done. many thanks to all. bit of hose is now in the box of spares i keep in the van. thanks again. john.

Re: air cooled spark plug. ( sorted )

Posted: 25 Sep 2010, 20:33
by edoh
or if the worst comes to the worst .....

http://www.machinemart.co.uk/shop/produ ... and/clarke

Re: air cooled spark plug. ( sorted )

Posted: 26 Sep 2010, 20:14
by dugcati
edoh wrote:or if the worst comes to the worst .....

http://www.machinemart.co.uk/shop/produ ... and/clarke


Or you can get an old plug and cut groves into it and hey presto you have a thread restorer!

Re: air cooled spark plug. ( sorted )

Posted: 26 Sep 2010, 21:27
by BOXY
Is there an echo in here?

Re: air cooled spark plug. ( sorted )

Posted: 27 Sep 2010, 20:38
by dugcati
BOXY wrote:Is there an echo in here?

ahem... Ok so I missed your post