Removing balance shafts

All technical questions and answers regarding starions, being modifications to maintenance.
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boosted
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Removing balance shafts

Post by boosted »

Has anyone got experience on it?
Is a elimination kit available, whats the way to do it?

Thanks in advance

Adil
isnowi
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Post by isnowi »

Have a read of this article, it explains things fairly well.
http://www.vfaq.com/mods/balance-shafts.html
this shows the elimantion kit install in a twincam motor, sohc is fairly much the same AKAIK.

Ididn't use a kit for mine, i simply cut the oil pump shaft, rotated the other shaft bearings in the caps to block off the oiling holes, and used a 22mm (if i remember correctly) brass frost plug in the void left by removing the shaft.

Makes the thing rev much more freely, and i now see about 30psi of oil pressure at 1000rpm when warm as opposed to 20-25psi before i removed them (stock oil pressure is 41psi at 2000rpm.)
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mrb1
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Post by mrb1 »

Be aware that the DOHC balance shaft eliminator kit will not work in the SOHC engine because the diameter of the oil pump balance shaft is bigger on the DOHC.
You can cut off your stock balance shaft and use that but you also have to block up the oil hole that goes down the middle.
Like isnowi said the "engine acceleration" is much better without the balance shafts.
You will feel more vibration typically around 3000 RPM however this seems to vary a bit between engines.
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boosted
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Post by boosted »

Great seems fairly simple with a lot of benefits. At least they can't let go anymore :wink:

Cheers
SOWTZ
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Post by SOWTZ »

Has anyone had a bad experience after removing it or is it all good news?
:beer
I have a car. I use it to drive to work, to drive to work I need petrol, petrol cost money, I must work to make this money… it’s a vicious cycle!
Junkers
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Post by Junkers »

I've heard of some engines vibrating ridiculously even after being balanced.
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mrb1
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Post by mrb1 »

Like I said all I noticed was a vibration typically around 3000 RPM through the gear stick.
Anyhow if you have a spare balance shaft it's a totally reversable change.
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