Hi,
Just starting to open up the engine on a 1000FK (89ish) have discovered one of the bolts holding the cam chain cover is a bit sick. Of course its one at the front so access is nasty. Looks like the top 3/4 of the head is rounded, but the lower points appear intact.

I will talk to one of the engineers at work this week, but wondered if anyone had some words of wisdom?

Thanks
Kevin.

 

There's a spanner called a "gorilla" which tightens as you put pressure on it. That would do the trick.
Another option would be to file flates onto the bolt that you can get a spanner on, or even slot the head and use an impact driver on it.
Last option would be to weld a square bar to the top of the bolt and use another spanner to get it off.......I've used all these methods over the years.
Good luck

 

Nice, clear photos Kevin, makes it easier to see what you're up against.

Never tried it myself, but how about a sacrificial ring spanner and some two pot epoxy? Let it set up and cure for a good 24 hours, then have a heave on the ring spanner.

Don't know if it would work, I'm sure someone wiser and more experienced than me will be along soon.

What part of Dunners are you in?

 

Dohh - of course, assuming you have the room to do it.

 

Metrinch
https://www.google.com.au/search?q=m...w=1540&bih=843

 

Thanks for the quick replies. Yes, its in a bugger of a position. The gorilla grip spanner would probably do it, but I don't think I'd have room to swing it.

I've been searching with google and I quite like the look of these type of units:



The other three bolts on the chain cover were OK although they really released with a "crack" - far too much torque on them I suspect.

Another popular choice seem to be to weld a nut on top of the stuffed unit & then remove with that.

I'll see what our engineer has at work tomorrow.

Kiwi TK, I'm in the Waverley area.

Thanks for the suggestions, I'll report back on what happens.

Regards
Kevin.

 

Thanks - that looks interesting also. I've never seen that style of socket before.

Update: Actually, I'll probably try one of these, they look exactly like what I want. I still have the flats on the head, its just the points that are buggered. Thanks!

Cheers
Kevin

 

Info about the metrinch tools:

Metrinch-tools - IF THIS CAN'T DO IT, NO TOOL CAN

 

Nice part of town Kevin, give me a yell if you're ever thru Central way. I'm in Wanaka.

Alternatively we could catch up for a quick pint sometime at the Shiel Hill Tavern when I'm down your way

Cheers
TK

 

Best bet, try a snap on 6 pt. Socket. The higher quality and tolerances prevent this kind of thing from happening better than cheap tools.
but it may be too far gone. Use a punch with a point and a hammer and knock it on the flange of the bolt in the direction of rotation. Once you get it to turn a little, it should unscrew by hand. Be careful not to miss and hit anything else.