wobbly balancer at idle

[rob drag racer]

ive fitted a new balancer a wile ago to the vp/v6 and ive noticed that its quiet wobbly at idle ive talked to jason and he thinks it may be the cause of my bottom end knock as it disappears when driving (anything over 1500 rpm )

any thoughts and is the wobble normal ?

[maldotcom2]

What does it feel like at idle? My VS has a faint knock at idle but i'm not sure what it is. Wondering if my problem may be related.

[rob drag racer]

seems ruff in relation to the knock

[Morton]

How tightly did you do the crank bolt on the balancer? Should be at least 200nm if you want it to be tight.

It's also possible that your old balancer, if broken, has moved around enough to cause damage to the front bearing on your crank. If that's the case, prepare to snap a cam

How bad is the wobble?

[rob drag racer]

not huge maybe 1 cm fluctuations at the very most and i did it by hand as tight as i could probably not tight enough i assumed a bearing at the start

just checking all possibles first just to make sure before i do a rebuild

[Morton]

How long was the breaker bar you used?

[rob drag racer]

1.5 meters (for a truck)

[DavoVP]

Thats how i did mine, hasent moved on me yet, ( they are ment to self tighten to a certain degree ) i think :P the bastards who did it the first time used red lock tight ! was fun geting it off i tell ya.

[rob drag racer]

ill pull it back off when i get a chance to and inspect it again i just went for a quick drive and it didnt make the noise at all having said that its relay cold out atm

[rob drag racer]

no other theroys ?

[col parsons]

May have wrong balancer on. According to Repco, they list 2 types for vp's. Repco balancer part # hb 1083 for engine #'s up to #127483 and hb1207 for #'s 127484 and greater. I'm not sure what the difference in the balancers is? Hope thats shone some light.

Regards Col P

[aussieghostrider]

The balancer you have is for a series 1 vn engine... or its defective .... or as someone said you didnt tighten it up ..

if idiot at repco dropped balancer can stuff it ...

[rob drag racer]

well it was matched for the engine number but i wouldn't put it past the fools picking up the wrong balencer of the shelf

[immortality]

you'll know if it's aVNs1 ballancer because it will slip on without much force. the later ballancers are a interference fit and require some force to get on. later model balancers also have the 3 holes for the puller

have you checked oil pressure? will give a indication of bearing condition. also, what type of oil do you run. if it's to thick it will knock a little on cold start up, if it's to thin it will knock a little when hot

[rob drag racer]

you'll know if it's aVNs1 ballancer because it will slip on without much force. the later ballancers are a interference fit and require some force to get on. later model balancers also have the 3 holes for the puller

have you checked oil pressure? will give a indication of bearing condition. also, what type of oil do you run. if it's to thick it will knock a little on cold start up, if it's to thin it will knock a little when hot

well it wasn't easy to put on and it has the 3 holes oil pressure seems fine but i don't have a Gage to test it for the psi its flowing to top end alright and it only seems to knock at idle anytime thanks for the input

[aussieghostrider]

I wonder if the balance shaft was stuffed would cause symptoms like u say ?

Also you put on the car a while ago and was fine but now playing up ?

I know sometimes high revs can throw balancers weights off and slip ... your mrs lead footed ?

[rob drag racer]

I wonder if the balance shaft was stuffed would cause symptoms like u say ?

Also you put on the car a while ago and was fine but now playing up ?

I know sometimes high revs can throw balancers weights off and slip ... your mrs lead footed ?

no its been doing this almost from when i put it on wich was about 300 km ago and i keep the lead footing to the strip and in my race car and the mrs dont drive im the only driver

i haven't looked into it until now because i assumed it was a Bering on the way out but wanted to make sure before i did a tare down

[immortality]

i don't think the ballance shaft will be the cause of the knocking. seeing as the ballancer is new i doubt it's failed this quickly.

i'd buy a oil pressure gauge. even a el' cheapo just to see what is happening.

try taking the ballancer back, claiming it's faulty. at worst they say no

[rob drag racer]

well that will be the next option (taking it back) i still have the original here it only just starter to crack and what not ill put it back on if i can ever find my 24mm socket lol and see if that resolves some noise

[rob drag racer]

well that will be the next option (taking it back) i still have the original here it only just starter to crack and what not ill put it back on if i can ever find my 24mm socket lol and see if that resolves some noise


can anyone tell me the right bolts needed for the puller ive lost my ones i used last

[azzfox]

1/4" UNF. You want them to be a good 5-6" long.

Yeah, thats what she said.

[rob drag racer]

1/4" UNF. You want them to be a good 5-6" long.

Yeah, thats what she said.

thanks i owe ya one and thats what who said lol

[azzfox]

No worries lol was just a joke because it sounded remotely sexual

[Tom_1569]

No worries lol was just a joke because it sounded remotely sexual

Dont happen to be a fan of "The office"? lol.

[azzfox]

Cant say I am. I only ever watch it when finding it by accident lol