- Joined
- Jan 27, 2013
- Messages
- 9,855
- Reaction score
- 34
- Location
- Brisbane Australia
- My Bike Models
- 1981 GL1100 “Rats Nest”
1998 GL1500c Val
1987 CBR1000f “The Pig”
1991 CBR1000f Red
Needed to replace Glowplugs on the Diesel Forester and started with the most obviouse one as they are $144 AUD each. Number one looked stuffed ( the center/anode was hanging out) and didn't seat all the way down like the others. Worked back and forth slowly ( over half an hour and plenty of sweat) to remove the offending glowplug and this was my final reward
Aluminium head material attached to the threads of the old glowplug
I cut up the old glowplug and put some slots in the thread to use as a tap. Eventually I had to admit defeat and the possibility of engine out and head off to repair. As it was a 10x1 mm thread and a recoil kit would be expensive and at least another days delay I rang a mobile thread restorer.
New Glowplug
How far it should screw into the head leaving the nut almost flush with the casting. The one I was replacing sat out about 12mm further
Working conditions of the glowplug hole on top of the right hand head
The thread restorer was a champion. He cleaned out the old threads with a tap and hoped to pickup some good threads. Unfortunately we hadn't any good threads as it appeared that the glowplug was originally ( I beleive a replacement one by PO etc) cross threaded. We still couldn't seem to get the new one to seat properly so we drilled ( me with his long drill bit) down to clean out the first step. The glowplug still wouldn't seat properly and eventually I said lets just put a thread insert in and I will lock it up in the same position as before. I would of used a helicoil/recoil kit if I had purchased one instead he used a Time Sert which I had never seen before and definitely approved of.
[video]https://youtu.be/anjDQJtWFc8[/video]
I cut up the old glowplug and put some slots in the thread to use as a tap. Eventually I had to admit defeat and the possibility of engine out and head off to repair. As it was a 10x1 mm thread and a recoil kit would be expensive and at least another days delay I rang a mobile thread restorer.
The thread restorer was a champion. He cleaned out the old threads with a tap and hoped to pickup some good threads. Unfortunately we hadn't any good threads as it appeared that the glowplug was originally ( I beleive a replacement one by PO etc) cross threaded. We still couldn't seem to get the new one to seat properly so we drilled ( me with his long drill bit) down to clean out the first step. The glowplug still wouldn't seat properly and eventually I said lets just put a thread insert in and I will lock it up in the same position as before. I would of used a helicoil/recoil kit if I had purchased one instead he used a Time Sert which I had never seen before and definitely approved of.
[video]https://youtu.be/anjDQJtWFc8[/video]
