tooothed cam gear harmonic balancer

[paperboy91]

So I am very close to finishing my e30 project but the one problem in my way is the toothed platter that the CPS reads off is loose and spinning freely. I have tried to tighten the front pulley more but its all the way on. is there something im missing that keeps this pulley thing in place? only solution I can think of is to drill holes in the black rubbery thing behind it and jb weld screws through the two to keep it from spinning. this is 325is 1987.

thanks

[paperboy91]

this is a m50 one but it looks just like this.

[digger]

if i undertand what you are saying there is a dowel in the hub gear that the damper gets located on and then 6 bolts that bolt it and the smaller pulley for PS and AC. if it stills spins then highly likely its stuffed

[paperboy91]

this dowel = a pin? and would it have fallen out? i will have to take a look when i take it off. only think keeping me from driving the car for first time.

[pantelones]

only solution I can think of is to drill holes in the black rubbery thing behind it and jb weld screws through the two to keep it from spinning. this is 325is 1987.

Please do not do that... Take the harmonic balancer off, and inspect. If the rubber is moving when you hold the center hub you need a new/good used balancer. This is really the only thing that would be wrong if you have it bolted in place. The dowel is use for alignment purposes; that is what that small hole in the balancer is used for. A dowel pin should be sticking out of the front of the crankshaft where the balancer mounts...

This is a camshaft, but the principle remains the same

[jlevie]

If the toothed ring of the harmonic balancer will move independent of the crank with the balancer bolted to the crank, the rubber that connects the two pieces has failed. Don't bother trying to fix it. Get a replacement.

[paperboy91]

Ok its off. rubber inner part does not move and seems fine. is nothing about this dowel. hopefully this is part of the rubbery inner part. lining it up i can weld the toothed part to the PS/AC pulley making it static forever. (after lining up both first tooth and bolt holes on pulley. I do have a line on a new balancer but see no reason why staticing the toothed part all lined up wont work and solve my problem forever.

[LJ851]

Ok its off. rubber inner part does not move and seems fine. is nothing about this dowel. hopefully this is part of the rubbery inner part. lining it up i can weld the toothed part to the PS/AC pulley making it static forever. (after lining up both first tooth and bolt holes on pulley. I do have a line on a new balancer but see no reason why staticing the toothed part all lined up wont work and solve my problem forever.

Post some good pictures. It sounds like you intending to render the harmonic balancer useless which is not a good idea. It is there for a reason.

[paperboy91]

make these two one with some tack welds. thus removing possibility of the toothed timing gear ever coming out of alignment. essentially mirroring the M50 one above

http://imgur.com/XI3OXSr link if it does not work

[SpecM]

don't do that please

[paperboy91]

don't do that please

could I get an explanation instead

[SpecM]

well...

are you trying to weld the toothed section to the main pulley? or the ac/ps pulley to the main pulley?

[paperboy91]

weld the ac/ps pulley to mainpulley/ toothed gear. whether it be on the front or back idk. Either right where I marked it with tape or on the inside where there is more metal. as long as it keeps main pulley intact. I do not have AC or PS in this car so I don't care about that pulley becoming useless just want to sacrifice it for its 6 bolts that go right to the crank.

[LJ851]

OK, here is the deal since i cant see your pics.

If you can bolt the 6 bolts on the end of the crank and the toothed wheel spins, yet when you remove it from the crank it is still basically in one piece then you do not want to weld it.

The toothed wheel is completely separate from the 6 bolt area, attached only through bonded rubber. If you weld it on you will be removing it's harmonic damper function which is there to dampen the harmonics generated by the crankshaft.

Harmonic vibration will break your crankshaft eventually. Just go get a good used one and put it on.

[paperboy91]

OK, here is the deal since i cant see your pics.

If you can bolt the 6 bolts on the end of the crank and the toothed wheel spins, yet when you remove it from the crank it is still basically in one piece then you do not want to weld it.

The toothed wheel is completely separate from the 6 bolt area, attached only through bonded rubber. If you weld it on you will be removing it's harmonic damper function which is there to dampen the harmonics generated by the crankshaft.

Harmonic vibration will break your crankshaft eventually. Just go get a good used one and put it on.

Can you see the pictures by clicking the link? IDk why they wont.

THIS IS NOT MINE

Is the center supposed to look like this one? because on mine there is nothing in the center. that's why I am trying to use the other pulley for the bolt holes.

Secondly is the big rubber disk in any way meant to be attached to the toothed gear or are the just meant to sit next to each other.

When I took it off for timing belt they came apart separate and there was nothing in the center of the steel toothed gear.