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105262 Posts in 12001 Topics by 1177 Members - Latest Member: fen tractor October 21, 2019, 02:15:46 PM
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XS1100UK Forum  |  Bullshit Corner  |  In The Garage  |  Topic: Thread repair for spark plug holes
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Author Topic: Thread repair for spark plug holes  (Read 148 times)

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Plod

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Thread repair for spark plug holes
« on: July 10, 2019, 01:17:38 PM »
Hi all - I am looking into repairing/improving my spark plug holes in the head as I have no confidence in their ability to take a plug tightened to a reasonable torque - my question is - what - of the various offerings out there are worth spending money on to do the job myself - obviously I am aware of 'Helicoil' and 'Recoil' brands - many thanks in advance - Kev
« Last Edit: July 10, 2019, 09:18:21 PM by Plod »
XS1100 2H9 Blue/White 1979

mro

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Re: Thread repair for spark plug holes
« Reply #1 on: July 11, 2019, 01:16:20 PM »
Do you have some damaged threads now?

Been awhile but I've used helicoils in aluminum heads (small 4 cylinder industrial engines  heads) with good results.
Like using the copper type anti-seize too.
I've also repaired a few Ford Triton PU heads using the steel alloy inserts which works good.

As for making the holes stronger, what ever you do it is still going to be set in the aluminum head.

mro
 

 

Tom

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Re: Thread repair for spark plug holes
« Reply #2 on: July 14, 2019, 11:10:37 AM »
Helicoils are good but I worry they will screw through into the cylinder when replacing a plug later on. I prefer Timeserts for spark plug threads as they have a small head.
It makes you look a tvvat but question everything!!


Tom, belligerent old tosser!!
Dazed and confused

Jownsy

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Re: Thread repair for spark plug holes
« Reply #3 on: July 16, 2019, 06:01:04 AM »
Hey There Plod/Kev
This link to the aussie site might be relevant for what you are doing
http://xs1100.com.au/forum/index.php?topic=2657.0
78 E Stock
78 E Stock with spoked wheels
80 G Spoked wheels and other subtle mods
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bradster

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Re: Thread repair for spark plug holes
« Reply #4 on: July 19, 2019, 11:10:44 PM »
I have used timeserts a few times on different engines ...heres a handy tip ..grab a grease gun and put some grease in the cylinder an turn the engine backwards to pull the grease in , then use the tool  taps etc to thread the head put in the  insert and  turn the engine over and any swarf  will come out with the grease  :yipee:  clean up an away you go ...  works quite well ...

FJ111200

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Re: Thread repair for spark plug holes
« Reply #5 on: July 20, 2019, 12:29:30 PM »
I have used timeserts a few times on different engines ...heres a handy tip ..grab a grease gun and put some grease in the cylinder an turn the engine backwards to pull the grease in , then use the tool  taps etc to thread the head put in the  insert and  turn the engine over and any swarf  will come out with the grease  :yipee:  clean up an away you go ...  works quite well ...

This wants putting in the Hints and Tips section.  Top tip.
Tight end down

https://www.youtube.com/watch?time_continue=12&v=TeyHPAdxuy0

Interesting thought... But don't you need 'members' for a 'Club'..?

If you can't bleed your bike's brakes then you can't have a bike.

XS1100 - it's old fookin' hat.

bradster

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Re: Thread repair for spark plug holes
« Reply #6 on: July 20, 2019, 04:17:42 PM »
Thanks for the compliment....its one that works well when using helicoils and your frightened of loosing the snap off tang in the hole ...

XS1100UK Forum  |  Bullshit Corner  |  In The Garage  |  Topic: Thread repair for spark plug holes
 

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