HOW TO REMOVE A SNAPPED GLOW PLUG

[@jamesward5721]

Personally, the BMW N47 is one of my favorite engines. I love 'em. They are utterly straightforwards to work on & have very few annoying foibles. I'm always buried in one engine or another - the N47's are a semi-pleasure compared to most of the complex muck I have to repair. It's also a powerful, economical motor with very little over-fancy nonsense on it. When removing the glow-plugs, work counter-intuitively. Tighten them just a crack first. Then loosen them a crack. Then re-tighten, then re-loosen. That first crack in the tightening direction, clockwise, makes all the difference. You will then not have the ball-ache of having to remove snapped ones. Just my 2c. Anyone who thinks the N47 is rubbish has never worked on any of the other makers recent balls of dung they call engines - the N47 is a very basic old-skool engine at heart. Thumbs up from me, BMW.

[@GeorgeAusters]

Agreed

[@craigchamberlain]

I always use a torque wrench when removing old glow plugs, to ensure I don’t snap them. I also start with a hot engine and use copious quantities of penetrating oil. Usually some of the plugs come out relatively easily at something like 30NM but there are always some that need 35NM or 40NM and often multiple attempts over a 30 - 60 minute period with additional applications of penetrating oil. Of course the engine is also cooling down during this time so it’s a delicate balance of force and patience. The bit I hate most is the horrible screeching noise some plugs make as they are unscrewed. It’s like nails on a chalkboard!

[@ReCheck_WotTheFluck]

Think you got lucky drill didn't wander anymore. Don't know why the kit didn't use left hand drill bits. But got it done. Stress level - high.

[@rednax1396]

Just did my glow plugs on my e90 318D and while getting to them was a bear, they came out eventually so for that i am grateful, i bought a removal kit before i started.... just in case but thankfully didnt need it. Without your videos i'm not sure i would have even attempted this job but thanks to you i was able to complete it and now she's on the road again. TY George.

[@GeorgeAusters]

You’re welcome!

[@DonMikson]

sorry for my english. maybe I didn't understand something but at 8:10 you can see that there is a fragment of thread on the spark plug. why didn't you drill out this thread on the spark plug all the way? after all, this thread blocked the smooth removal of the spark plug from the channel. can you explain this. maybe I didn't understand something.

[@chrisshave7129]

Thanks for great content! When you re-tapped the glowplug threads how do you prevent bits of swarf getting into the engine?

[@steveng5503]

Well done mate! It’s easy in such situations to become distracted and start grabbing at the incorrect tools for the job and stabbing at things, making things worse if not careful. There’s a lot to be learnt from this video. 👍🏻

[@GeorgeAusters]

Thanks mate

[@nikokristiansbodnieks2147]

With this set come easy and fast out. Got electrode out with welding and bending and then spinning, then drilled out, tapped with thread M10x1.25, in set was only M10x1 and M8x1, vacuumed, tapped thread for glowplug, vacuumed, screwed end for extraction tools, and started with wrench till it got out, ez. Good set, but drill small end broke off, but another have small end

[@andrewhulbert2466]

I was hoping you'd show how to replace the gasket from the turbo to the downpipe, i need to do it on an e90 m57 and figured it would be the same ish?

[@martinhiggins6016]

I’ve been looking forward to this one. Because of this risk I had put off doing glow plugs when I had a diesel.

[@audimanuk]

So, at 6:0 youre attempting to pull them out with the tool, surely youre fighting against the thread? I thought these kits allowed you to drill, tap and wind them out anti clockwise?

[@tlabort]

George you have done a Really good job i messed up by drilling slightly into the head and did not remove the glow plug I ended up having to get a second hand head and replace it which was ok the only thing that was hard was the head bolts are to get off and to replace HATS OFF WELL DONE

[@GeorgeAusters]

If you do drill into the head then you can just get an oversize thread insert

[@robc5955]

My idea of nightmare, well done.

[@rogerkretzschmar8280]

Well done! Were you not a bit worried about the glow plug tip dropping into the head when you drilled it's thread out?

[@michaelclutton8446]

I wondered about that

[@GeorgeAusters]

It couldn’t drop down as the tip is connected to the shaft and the shaft is too big to fall down

[@mcplutt]

You mean into the cylinder? Probably wise to have that piston at TDC. But I guess the hole for the glowplug tip isn't large enough for the rest of the plug.

[@abdulb1162]

When your doing glow plugs on these N47 engines, should you always replace the glow plug module as well or can you just leave it?

[@yupiter7]

usually you replace glow plug relay if you see all glow plugs error on diagnostics. is its 4 cyl engine and all 4 shows error you change all 4 glow plugs and relay

[@anthonyballard6906]

I had an exhaust leak from my downpipe with fumes coming into the cabin. It turns out someone had removed it before and didn't put the gasket in. 🤦‍♂️

[@sammason411]

They don't all have a gasket listed

[@anthonyballard6906]

I put one on and it's stopped the exhaust fumes coming into cabin so must have needed it

[@jackdanielsamarreto]

How do you stop the iron fillings going inside the engine ?

[@metalworker007]

The taps usually have slots running down them, you fill the slots with tapping grease ..and the swarf should end up in the grease and not on top of the piston

[@GeorgeAusters]

While the glow plug is in place, the swarf can’t fall down into the cylinder so just vacuum it out. But yes you use grease to catch the majority of the swarf👍🏻

[@NinpoUK]

Sounds loads better George! Great job getting that one bastard of a plug out. I used your I think E46 video with the M47 for the ones on our older E91. Still got it mate!

[@NinpoUK]

Also George do you have a slide hammer you could adapt to that removal kit? Screw an end of a slide hammer into the tapped piece and use the hammer to knock it out

[@GeorgeAusters]

Yes I do, that would only work once you have drilled through the threads completely

[@KianWard-b9q]

that job was just amazing to perfect fairplay bro very tricky job to do but you did an amazing bit of content for this channel id say that would of cost a right few bob in a garage for this repair stunning work bro happy days it worked out for you pal delighted for ye👌👌👌👌👌👌👌👌👌

[@ahmedrazak2063]

I think one reason that makes it more likely that an old glow plug may snap is undue side load. I'll try to explain this; So as well as the rotational torque, if you are not careful you can apply a side bending force that will cause the head of the glow plug to bend side ways a little when you apply force. This is made worst if you use longer extension bar on your wrench as this acts as a lever applying more bending force if you are not careful. I suspect it is this force that cause the glow plug head to snap. If the force can be kept purely rotational then I think the old plug will come out without snapping. What do people think agree/disagree? (May be someone out there can do a controlled test to prove this or not).

[@voithRetarded]

Well explained physics

[@SinisaStjepanovic]

You cant see the angle mate cause thst shit glow plugs arw at the angle on back side of the engine. No room to work plus visibility non existing. I took the 4 put. Two worked second two electrodes stuck in actual bodys out

[@matthewhaddon599]

I had glow plugs changed at a small garage, but sadly they used the wrong plugs. There are 5v versions and 11v versions. They used 5v by mistake so a week or two later they failed. As I was on holiday when they were fitted, I had to change them again a few weeks later at home. They did come out easily! I didn't complain to the garage as they were probably given the wrong plugs by their supplier and didn't realise. That was on a Freelander 2.

[@GeorgeAusters]

I only use the genuine Bosch plugs that BMW uses

[@bobfrankish8883]

You're a brave lad George, I'll say that! That tool set gets more really bad reviews than good, so I think you did well. Possibly with a bit of machining by your dad, the tool could be made to sit correctly on the BMW head, which could make all the difference. Anyhow, well done again.

[@GeorgeAusters]

It’s a very simple kit really so don’t know how people can say it doesn’t work

[@bapsmcginty4782]

@@GeorgeAusters It looked like it was screwing into the plug rather than screw it out. Like an easiout would. Optical illusion?

[@thestorytelleruk]

Getting to these plugs is a dream compared to my Citroen C3's, which are located right at the back of the engine! Have to remove the scuttle panel, air filter, etc. And still you need to work backwards with a mirror! Absolute nightmare.

[@B3MMi]

0:50 No, I don't think that's true. I changed glow plugs on N57, completely cold. Sitting for 2 weeks and during winter. Every single one of them came out very easily. Even after 300k mileage. Used torque wrench on reverse setting. Remember to change them in time, use a torque wrench and put a bit of ceramic grease to make the job easier gor the next person. 😊

[@peterpaliwoda1527]

Nice work George…Will it be ready for the road trip to Wembley?

[@GeorgeAusters]

Of course!

[@peterpaliwoda1527]

@@GeorgeAusters thought that might motivate you !

[@maxcrompton4073]

is that a f series 20d in a e91?

[@GeorgeAusters]

They used this engine in E and F chassis

[@banzaiman1]

I think some of the kits come with a drill guide. My drilling definitely wouldn't be straight

[@GeorgeAusters]

This kit does come with guides and smaller bits to get you started

[@Bercilakdehautdesert-yt1gd]

I had a snapped tip stuck in the bore of a Saab 9-3 Tid. I soaked it in 50/50 Acetone and ATF mixture and strapped a chunk of wood above the bore, then drove. After 200 miles there was an almighty bang and the snapped tip was ejected, hitting the block of wood, saving a bonnet ding. I was sort of concerned that the tip might go the other way and through the engine but really, the detonation forces are way more powerful than those generated by the the intake stroke. It is worth noting that the tip was unscrewed from the bore by 12mm or so, no part of the plug tip was actually inside the combustion chamber. Had that been the case I would have removed an injector and pushed the tip out.

[@tonyjones7372]

There was a F-type on e-bay that had been written off because of snapped glow-plug. I was too scared to buy,

[@GeorgeAusters]

Diesel F type?

[@tonyjones7372]

@@GeorgeAusters yes, your right, sorry, will have been injector. doh! apparently common problem.

[@piyush1419]

Please help bmw e90 mileage is fluctuate heavily

[@waynehaines4889]

8.u hi

[@waynehaines4889]

Û

[@peterarries7879]

Nice job

[@bapsmcginty4782]

Lets hope Ipswich dont go as well as your improvised heater plug removal🤣 MOT

[@mumbtie]

Let's hope so 😂

[@SinisaStjepanovic]

What do you do with stuck electrodes ones sticking out of the head seconds in. I took the bodys, this shit is f lottery. Im never buying f diesel ever f again besides tractors lol

[@fungistakab-laze3279]

Im stupid, after you removed the drill i started blowing on my screen 🤦

[@-sargntclashroyaleandmore-491]

Whats next on project KFC eh 😅

[@GeorgeAusters]

Hopefully not a lot lol

[@Coops95]

Another vid of yours into the archive, quality having a tutorial for pretty much everything and anything on the car/engine you own without all the shitty loud music or pointless info that most usually have 😂 up the colonal 🫡