kenmoore

Well I removed both engine cases, polished them, and fitted the 4degree ignition advance rotor.Replaced oil and filter new coolant and gaskets.


Fired her up and there is a terrible rattle.


Had no trouble fitting engine cases.


Have pulled the cover and made sure shaft is fitting inside water pump gear.


Removed and refitted rotor and all seams correct.


Turned engine over from flywheel side with socket and everything seams to turn ok.


Any ideas, it sounds terrible.

smokinjoe73

You removed the clutch cover? Did you bleed the clutch line? Dont know if it would make noise though. I dont think ignition advancers benefit the hawk.

thetophatflash

Sad to say, but I would go back in Doctor, check to see if you left a sponge or maybe your watch inside. lol. Seriously, you've got to go back in to verify your work and look for things that could make that particular "rattle".

saige

did you check your timing.your timing may be off.
where is the noise coming from,can you pin point to a place and side of the bike.
should be able to narrow down what it could be if so.

kenmoore

Definitely low down in motor, engine runs ok. seems to be from water pump.

Have been back in about 5 times.


Very frustrating.


Will try again tonight.


ARGH

saige

if its coming from right side of bike,and it sounds lower,could possibly be the bearing in it.
did you by chance take the water pump completely apart and back together with the same old parts.
make sure no gears or anything was put in backwards.
did you put new gaskets in the exhaust,if there is a exhaust leak,i think this can replicate to what you are hearing.you can only use them a couple of times and than there are no good.the sound will echo,so can be confusing.
can you feel the noise in your bars or on the right frame of the bike,if you can feel it,than it could be a bad bearing,bad valve or might need to readjust your valves.i would check for clearance anyway to be safe.
im hoping someone who has had this same issue will chime in,they would have a better answer to the culprit.

kenmoore

Went back in tonight, had a very cluey mechanic look at it as well.

Retorqued rotor, looked everywhere for something wrong.


Still no joy, totally pissed off now.


Have rebuilt motors etc and never had a drama like this.


HELP!!!!

RCVTR

When you removed the crank angle (timing) wheel, did the anti-backlash mechanism on the primary drive gear come disengaged? If it did, you need to rotate the spring-loaded gear, so the teeth line up with the primary drive gear teeth and hold it with a dowel (drill bit) that fits tightly in to the alignment hole, before you reinstall the primary gear assembly.

Just a guess. But something you may have missed.

kenmoore

Locked the gears down with a 6 mil bolt.

Been back in tonight and only thing I can put it down to is a faulty water pump bearing.


Rotor/impeller for pump does not spin freely.




Will blow it out with air, le and see what that does.


Very frustrating.

VeeTR

To much advance can cause that also,it the rotor set adjustment or can you vary the advance/retard? Have you tried running it with stock rotor to see if the noice goes?

erno

Hey kenmoore
Have same problem,but had a mechanic install it
Mine sounds like a ducati with a dry clutch,but mine sounds more from the top.
And I got the valves and cct's adjusted,took it back cant seem to find problem
Been on 3 decent rides now ,bike pulls hard thru all gears,had no issues
Like you its pissing me off,so In 2 mines to pull it apart and go over everything again

kenmoore

Put stock rotor back in still had same noise so refitted 4degree rotor

I have now ordered a new water pump bearing, seal, and mechanical seal and a new gasket.




Hope it's a coincidence and the noise is caused by bearing.


Waiting for parts.

kenmoore

Have fitted new bearing seal etc to water pump.

Seems different, now to fit it.


Hope it works.


Will let you guys know.


The way it sounded I am too scared to ride it.

kenmoore

Refitted side over and noise still there!

HELP

Jack Flash

The noise is on idle or riding ? If on idle, try pulling the clutch to see if
it goes away, or, less intense.

kenmoore

Tried pulling clutch,no different.

CrankenFine

maybe record the sound and post it?

7moore7

How did you install the water pump?

kenmoore

Had bike shop install new bearing,mechanical seal and seal in my side case.

Lined up shaft in Gear and pushed. Side cover seems to fit properly and pump rotates, that is the impeller.


Can't understand what is going on.

smokinjoe73

The water pump will not spin "freely" even when brand new. There is resistance from the seals that prevent it from spinning. I am guessing your water pump was never an issue.

What if anything did you do with the clutch basket and plates?

erno

Fella who worked on my bike ,said the rotor has too much advance on it causing the noise.Im no engine guy but is he pulling my chain
Bike runs fine temp is normal,been on 3 long rides without hassel
just has that sound in idle ,similar to a ducati,but not as loud

Thumper

Next time you are in there, take some good pictures of the different areas, maybe someone here will spot something you are overlooking.

Did you bugger up any teeth on a gear or clutch mechanism holding it in place to tighten or loosen a bolt.

My bet is you are overlooking something simple and have a washer, gear or something in the wrong place or turned wrong.

kenmoore

Never took anything off the engine except cover .

I locked the drive gears down with a 6 mill bolt as I didn't want the springs to come out when I removed the rotor.


I have been in there about 15 times now.


I can't see anything wrong, no filings no marks on teeth nothing.


I used a torque wrench for the rotor bolt as well.




I can't see how changing the rotor could make a noise, so I put the original back in and the noise was there still.


The only thing that I can think of now is that there is a washer between the anti rattle gear with the springs in it and the primary drive gear that keeps them separated, and maybe I have damaged that.


Going to order one and pull the clutch basket and replace that washer.


Talk about a P.I.T.A.


Only positive is that I am learning more about my Storm, but I would rather be riding.

VeeTR

No he's not pulling your chain,too much advance will have the spark igniting the fuel to early and will try sending the piston backwards more so then it already does,so it might run ok but over time the bearings and stress on moving parts won't thank you for it.

8541Hawk

I had a +4 advancer in my bike for a few years with no issues or funny sounds...... The only reason I pulled it was I have a HRC ECM in there now.

As for the OP I would bet the issue is with the sub-gear the rotor mount onto.

You state you used a 6mm bolt to hold it in place. Did you just use 1 bolt or did you zip tie the other side of the gear also?

If you just used 1 bolt, I would say the gear cocked and is causing the noise. If that is not it then inspect the gears where they were locked together to removed and installed the flange bolt.

kenmoore

Already tried that.

Noise still there!

thetophatflash

Bring it by and I'll look at it, no charge.

erno

Thanks for the heads up guys appreciate it

Thumper

It got to be the meshed gear set, you are just missing something. Pictures help, but none posted

kenmoore

I'm that pissed with the whole thing that I will leave it till the weekend now.

Thanks for everyone's input, I will let you know what happens.