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Injector bolt snapped

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Capripaul

Member Since: 20 Nov 2018
Location: Liverpool
Posts: 62

2007 Discovery 3 TDV6 HSE Auto Cairns Blue

Injector bolt snapped

I’ve just bought a new to me discovery 3 diesel with an issue on injector number 2. My problem is someone else has been in there before me and snapped o so the holding down bolts. Has anyone ever drilled one out or do we think I’ll have to take the head off?

Thanks
Paul

24th Jun 2023 12:38 pm

Kilovolt

Member Since: 29 Jun 2015
Location: South Derbyshire
Posts: 1020

2013 Discovery 4 3.0 SDV6 Commercial XS Auto Baltic Blue

I cannot help you myself but you might find this educational.

https://www.youtube.com/watch?v=pkuKzRmIL_M

Go to 12 minutes 18 seconds.

Good luck

"Track day running - Don't put your foot back on the accelerator until your absolutely sure you don't have to take it off again"

Current Ride: D4 XS Commercial Baltic Blue SDV6 fully loaded with heated everything

Track Days: BMW E36 M3 Evolution MY 1996 (3.2 Litre 377 BHP sat in 1,250 Kgs of car, with a pro safety cage and some serious braking power)

25th Jun 2023 8:01 pm

Capripaul

Member Since: 20 Nov 2018
Location: Liverpool
Posts: 62

Thanks, interesting video but mine is a snapped injector bolt not a glow plug so not quite the same as the bolt has snapped below the top of the hole so I have nothing to grip/weld onto. I’ve tried many different extractors and none have worked. Time to get the drill bits out again and start drilling.

27th Jun 2023 10:37 am

Grumpydog

Member Since: 10 Apr 2019
Location: Medway/ Mos Eisley
Posts: 151

2005 Discovery 3 TDV6 HSE Auto Tonga Green

Drill it out slightly smaller than the bolt size and run a tap down it. That should break out whatever is left. Worked on some snapped exhaust manifold studs on a TD5 Defender I had the other day. 2004 Disco 3 HSE TDV6
2015 Audi Q5 S Line plus
2008 Audi A4 Avant S Line Black Edition. Gone
2005 Chrysler Grand Voyger. Gone

27th Jun 2023 12:12 pm

BradC

Member Since: 29 Apr 2019
Location: Perth
Posts: 118

2008 Discovery 3 TDV6 XS Manual Izmir Blue

And drill it out using a left handed drill bit. It's quite likely as the hole deepens and relieves the stress on the threads it'll just back itself out.

28th Jun 2023 12:12 pm

Capripaul

Member Since: 20 Nov 2018
Location: Liverpool
Posts: 62

I just ordered myself a set of left handed drills so hopefully we can get it out. A job for the weekend, the guy who has snapped the bolt has "tried" to fix the issue by putting thread lock onto the injector in the hope it will stick in the head,

so I've got to clean that mess out as well. Some people shouldn't be allowed near tools!!

28th Jun 2023 1:45 pm

Capripaul

Member Since: 20 Nov 2018
Location: Liverpool
Posts: 62

Update

All sorted, drilled out remaining bolt, thread cleaned out and bolt back in. Engine still has misfire at this point so scanned with IID tool and the fault is on cylinder two not injector two so whoever snapped the bolt out wasn’t even on the correct injector.

swapped injector 3 and we’re back up and running. Good result as this car purchase was a gamble with a cheap fix so far to replace my last discovery that spun a crank bearing a few weeks back.

1st Jul 2023 12:17 am

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