470 Harmonic Balancer issue

[fmalott]

Re: 470 Harmonic Balancer issue

misinformation is kinda of strong words just some people try to direct in the right direction when i converted over i was told to remove stator now i was not 100% sure of the rotor they were talking about the weight that's why some people ask questions in the questions like it was, (unless there is someone out there says different that was the question)

 

[Sundodger]

Re: 470 Harmonic Balancer issue

UPDATE:

Two 0.030" spacers on the crank seem to have solved the issue. The boat has been run in my driveway, and if I get over this cold I am going to try and take it out for a sea trial this weekend.

 

[dn010]

Re: 470 Harmonic Balancer issue

i have ask this question before some permantly remove stator and rotor to lessen the wieght of the motor and of coarse what Don S said and yes it will happen so maybe down the road i will permantly remove stator and rotor since i converted to alternator, so we don't need them unless there is someone out there says different

Why would you permanently remove the rotor? With no rotor your engine internals will rust in no time and may dump oil since you'll no longer have something to seal the front cover/crankshaft to....

 

[solar7647]

Re: 470 Harmonic Balancer issue

Late to show hear but believe I may be missing something. The rotor cone, the portion that comes in contact with the drive shaft should slide into the front cover mateing with the seal that is pressed into the cover. If it dosnt you will loose oil, because of the gap it leaves it will drain out as the oil lubes the timing gears and as the rotor turns it will throw oil all over.

As you press the rotor on it should bottom out on the drive shaft, metal on metal. The end of the drive shaft should hit the inside of the rotor, and the cone of the rotor should just slide into the front cover allowing it to contact the oil seal in the cover preventing oil lose.

If I am reading your post correct your worried about it contacting the front cover right? The only way that should happen is if something is bent or damaged, other then that, the cone should slide into the cover creating your front oil seal. That is regardless if the stator is there or not.

 

[Sundodger]

Re: 470 Harmonic Balancer issue

Late to show hear but believe I may be missing something. The rotor cone, the portion that comes in contact with the drive shaft should slide into the front cover mateing with the seal that is pressed into the cover. If it dosnt you will loose oil, because of the gap it leaves it will drain out as the oil lubes the timing gears and as the rotor turns it will throw oil all over.

As you press the rotor on it should bottom out on the drive shaft, metal on metal. The end of the drive shaft should hit the inside of the rotor, and the cone of the rotor should just slide into the front cover allowing it to contact the oil seal in the cover preventing oil lose.

If I am reading your post correct your worried about it contacting the front cover right? The only way that should happen is if something is bent or damaged, other then that, the cone should slide into the cover creating your front oil seal. That is regardless if the stator is there or not.

I think you mean crankshaft not driveshaft, but yes it is my assumption that the rotor/balancer needs to bottom out on the crank. Mine would not, it would hit the cover first, so by putting two shims I got what I presume a hard joint between the rotor/balancer and the crank while allowing adequate clearance to the front cover and proper belt alignment on my alt. The real test is that nothing goes horribly wrong this weekend when I sea trial her, it has been many years since this boat has seen water other than the rain.

I honestly do not know what the root cause of my problem is, but I think it has been their since at least the early 90's.

 

[solar7647]

Re: 470 Harmonic Balancer issue

I think you mean crankshaft not driveshaft, but yes it is my assumption that the rotor/balancer needs to bottom out on the crank. Mine would not, it would hit the cover first, so by putting two shims I got what I presume a hard joint between the rotor/balancer and the crank while allowing adequate clearance to the front cover and proper belt alignment on my alt. The real test is that nothing goes horribly wrong this weekend when I sea trial her, it has been many years since this boat has seen water other than the rain.

I honestly do not know what the root cause of my problem is, but I think it has been their since at least the early 90's.

If there is a gap at the opening of the cover were the rotor cone should slide in you will loose oil....it makes a mess all over the bilge.

Perhaps you can post a pic of the point of contact, it may help to see what the issue is. That thing should fully seat with out hitting the front cover.

 

[dn010]

Re: 470 Harmonic Balancer issue

If I am reading your post correct your worried about it contacting the front cover right? The only way that should happen is if something is bent or damaged, other then that, the cone should slide into the cover creating your front oil seal. That is regardless if the stator is there or not.

Or maybe your cover gaskets are to thick? Get us a picture, it would help a ton.

 

[Sundodger]

Re: 470 Harmonic Balancer issue

UPDATE:

Took her out for the first time in at least 7 years, probably more. It went really well, no major issues just lots of little stuff to fix.

If there is a gap at the opening of the cover were the rotor cone should slide in you will loose oil....it makes a mess all over the bilge.

Perhaps you can post a pic of the point of contact, it may help to see what the issue is. That thing should fully seat with out hitting the front cover.

The oil seal contacts the snout of the rotor/damper just fine, I only spaced it out 60 thou. I would have to put a TON more spacers behind it to make that be an issue. The clearance issue was the outer ring of the rotor/damper to the front cover.

Or maybe your cover gaskets are to thick? Get us a picture, it would help a ton.

Not sure, but I don't think so. With the spacers my belt alignment is perfect, if I put in a thinner gasket without the spacers I would have a belt alignment issue on my alt.


Like I said before I have no idea what the real root cause of this is, but it seems to be fixed now so I am a happy camper.

I can take a picture if you guys like, but I am not sure what good it is going to do now that everything is together and repaired, it just looks normal, but if you want one let me know.

 

[dn010]

Re: 470 Harmonic Balancer issue

Glad it is fixed, enjoy your boat now!