Anyone ever had this problem??

Should i just put one some Loc-Tite it or whatever its called, or is there a more sinister problem at hand?

hi
is there a washer behind the bolt if not maybe that is why it is coming loose.

Marc

yeah washer and all that jazz are still there.

Just got off the phone to my mechanic, reckons i should try and do it up f-off tight with a breaker bar and all. I reckon a bit of loc tite couldnt hurt either...

Sounds ok

Let us know how you go.

By the way where abouts in Brisbane are you?

Marc

Loctite is the way to go.

Use Loctite 243 if you want to be able to get it off again. Use Loctite 272 if you want it to never come off (unless you warm it up with a blow torch )

I’d be looking for something wrong if it continues to come loose. Check the thread for damage, ensure the thread is clean, make sure you do it up to the specified torque. Could the bolt bottom out on the thread before it tightens on the fan? Could the fan be out of balance? Vibration could also cause it to come loose. Is the pulley or generator belt damaged? That could also put undue stress on the bolt.
Also does the fan sit correctly on the crank? If it’s not sitting straight, you may do it up tight, but with the fan not seated correctly it will work loose without the bolt undoing.

That’s just a few things to check for anyway.

Richard

If the flywheel bolt is loose, or the flywheel is moving on the dowel pins, it will cause the pulley nut, or the fan nut on a type 3 to come loose all the time.

eeeewwwwww...............

Why is that???

Vibrations???

I would get THAT fixed quick!

Andy and Dave are onto it.
Either the FW is loose,
or the snout is damaged and the bolt is trying to do all the work,
or worse, the crank has a big crack in it.
If the pulley is not a firm fit on the snout of the crank, then loctite will help, but not for long.
It didn't need loctite at the factory.
Some times Type 3 fans wear out the rubber O-rings that are rivetted within the fan and hub to dampen tortional vibration.
Check and replace all components.
Factory tension with lube on the thread should be adequate for components that are in good shape.
Do the job once.

hey we had this problem and its was the above problems but chck these things
pull the fan off and inspect for broken vains on the fan cause vibration and if this has occured for a while ceh the surface of where it bolts to the crank with a square to see that it actually is square!!
but i would say what dave has mentioned is the more common side effects
cheers
rhys

Well did it up real tight, and threw some 243 loctite on there. Only driven it once since ive done it, but no noises so far. Its all good (well not really, but for my wallet anyway), cause its a new engine under warranty anyhow. If it keeps coming loose, back to the guy who built it. The thread on the bolt was pretty average, so hopefully the loctite will do its job. I will keep you guys updated as to the progress of my haphazzard repair job.

I dont have the tools to be able to drop the engine out, so ive don all this by removing the rubber air boot, and bending my arm in there. Bloody pain in the a-hole to try and get the belt back on the fan, lined up properly, and bolt back in when you cant see jack!

Hey midlife crisis, im in Red Hill.

I had a similar problem on my bay. My moon key was shattered, and this was causing the bolt to work too hard. I tried the torque-it-like-hell technique, and the thing snapped off. I tried an easy out to get the broken bolt out, and it snapped off inside. I had to swap drill bits every five minutes and hire a right angle drill to get it out. I doing so, I stuffed the thread. A mobile mechanic came out and rethreaded the sucker to tighten in the other direction.

I learned at some expense that the "testosterone overdose - boots and all" technique is useful in the garden, but not on my dub. All has been fine since.

Best of luck!