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diverman62

Member

• Mar 17, 2020

• #1

Having problems with my V8 mk2 Discovery 4ltr Petrol.
No1 spark plug seems to tighten up okay but when I drive the plug pops out after about a minute. wondering if anyone knows of a suitable kit to repair the threads without removing the head??
Thanks in anticipation
Colin

 

JUKE179r

Well-Known Member

• Mar 17, 2020

• #2

Can't help you there mate but welcome to the forum.

 

Western Slope Rover

Well-Known Member

• Mar 17, 2020

• #3

I once fixed that problem with a piece of aluminium from a Mountain Dew can. Then I put in a heli coil. Sounds terrible when the plug pops out!

 

Last edited: Mar 17, 2020

Western Slope Rover

Well-Known Member

• Mar 17, 2020

• #4

Western Slope Rover said:

I once fixed that problem with a piece of aluminium from a Mountain Dew can. Then I put in a heli coil. Sounds terrible when the plug pops out!

Click to expand...

 

Western Slope Rover

Well-Known Member

• Mar 17, 2020

• #5

.

 

kermit_rr

Very

Full Member

• Mar 17, 2020

• #6

hi there and welcome!
if you do it yourself, make sure you do it right first time!!!! they are a bugger to get out

 

RangeRoller dt

Well-Sprung Member

• Mar 17, 2020

• #7

+1 heli Coil

 

Rubberknees

Well-Known Member

Full Member

• Mar 17, 2020

• #8

Once hardened an old spark plug by heat treating it, cut up threads like a tap , loads of grease and slowly retapped out . Works once so get it right

 

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NewDragon81

Active Member

• Mar 18, 2020

• #9

A slightly better solution than helicoil is a timesert which unlike the helicoils is a solid insert rather than a wire one. I've used both types in the past and would use the timesert, even though they are more expensive, over helicoil every time if available.

 

Hippo

Lord Hippo

• Mar 29, 2020

• #10

Welcome to the forum