balancer shaft removal

[zarique]

whats been said by GOO are true...

i already kena with not more than a year running...

 

[jinkl]

i got few stock balance shaft sitting at home :) evo n vr4 the same lerr.. u want kerr??keke
chopped balance shaft no good but still better then just taking out the balance shaft belt without removing or chopping the balance shaft kekekekeekekeke

balance shaft belt removed alone still practices worldwide including kampung and dsmtuners hehehe
no issues reported yet :P all running well

 

[goo_61t]

balance shaft belt removed alone still practices worldwide including kampung and dsmtuners hehehe
no issues reported yet :P all running well

no point arguing about it, dsmtuners have been arguing about this issue and it's been a long argument weather to keep or to remove the BS. Some say ok to just remove the belt,some say cannot. Back to the basic of the BS function.

 

[spuzzle]

guys, brought this thread back alive because i saw something different.

one of my fren mech totally remove both balancer shaft by alluminium weld the shaft hole on the oil pump piece...and he roatate the shaft bearing on the block to prevent oil fr flowing through it with a tag weld

after done, i personally tested that engine and it feel great...is there any side effects to oil pump?

 

[spuzzle]

where are those otai otai....retired fr motorsport? :stupid:

 

[jameswwt]

Hi Spuzzle,how is yr engine rebuilt after yr burnt rod bearing? Any crucials areas to look into while doing the rebuilding (replacing the crankshaft,oil pump,etc)
Mind to share?

 

[spuzzle]

james, i replaced with evo block but it lasted for a while only...piston ring gave way...then i rebuild my vr4 block...vr4 block done but havent install yet :proud:

 

[jameswwt]

wat!!! omg!!! did you change yr oil pump, crankshaft & oil cooler when yr rod bearings toast?

 

[spuzzle]

wat!!! omg!!! did you change yr oil pump, crankshaft & oil cooler when yr rod bearings toast?

yup, changed everything...only block reuse with honing job done

 

[jameswwt]

hi spuzzle,is it necessary to replace the balance shaft overhauling the engine??? What is the benefit of replacing the shaft? mind to share?

 

[spuzzle]

james, it is not necessary to replace the balance shaft...in my case, the shaft bearing broken then the shaft badly scratched so i have to replace it...the broken bearing ruin up everything in the block...what i did now is remove 1 of the shaft ( the one run by belt ) and machine the other shaft...will update u once i install the fresh block :proud:

 

[jameswwt]

thanks for sharing spuzzle as 1 of my friend recently also rebuilted his evo 6 due to rod bearing problem...but after he took out the balance shaft his mech and him found out its hard to put in back in place...Dont why? So scary? Btw,will a burnt rod or main bearings affect the balance shaft?
Sorry for asking much...
Btw,it will be very crucial to change yr OIL COOLER yaa for the sake of long term durability...

 

[chrissyong]

james, i replaced with evo block but it lasted for a while only...piston ring gave way...then i rebuild my vr4 block...vr4 block done but havent install yet :proud:

told u last time already,better rebuild your vr4 block,evo stock piston ring and piston and con rod like tofu fa man,whatever u gain the real exp,good luck

 

[spuzzle]

thanks for sharing spuzzle as 1 of my friend recently also rebuilted his evo 6 due to rod bearing problem...but after he took out the balance shaft his mech and him found out its hard to put in back in place...Dont why? So scary? Btw,will a burnt rod or main bearings affect the balance shaft?
Sorry for asking much...
Btw,it will be very crucial to change yr OIL COOLER yaa for the sake of long term durability...

i would say burnt rod/main bearing wouldnt effect balance shaft unless the debris flow through the oil and get to the shaft...its good to ask than to learn the hard way, we are in forum to ask and answer...hehe

told u last time already,better rebuild your vr4 block,evo stock piston ring and piston and con rod like tofu fa man,whatever u gain the real exp,good luck

last time i couldnt find vr4 internals to replace my crank, oil pump and balance shaft until i bought a complete engine...by the way why dint see u online msn for so long?

 

[jameswwt]

Thanks for sharing Spuzzle....Where you do yr overhaul? Just wonder do you know any shop can do chemical cleaning to the head & block?

 

[chrissyong]

i would say burnt rod/main bearing wouldnt effect balance shaft unless the debris flow through the oil and get to the shaft...its good to ask than to learn the hard way, we are in forum to ask and answer...hehe

last time i couldnt find vr4 internals to replace my crank, oil pump and balance shaft until i bought a complete engine...by the way why dint see u online msn for so long?

lol get sick very long time,i thing got 2 month random non stop sick,old story already whatever i cure already....

 

[Izso]

Question : This balancer shaft works as a harmonic dampener? Or...?

 

[spuzzle]

Thanks for sharing Spuzzle....Where you do yr overhaul? Just wonder do you know any shop can do chemical cleaning to the head & block?

i did in kuantan...not sure where can do chemical cleaning...i suggest u better spend the money for port/polish

Question : This balancer shaft works as a harmonic dampener? Or...?

these shafts counter balance the vibration

 

[jameswwt]

Thanks Spuzzle.

 

[Izso]

these shafts counter balance the vibration

Ok, so by this logic, if say the whole engine was completely balanced to the 3rd decimal point (just hypothetically speaking) would it still need this counter balance shaft? What vibration does it counter? Where is the vibration from?

 

[nan83]

Ok, so by this logic, if say the whole engine was completely balanced to the 3rd decimal point (just hypothetically speaking) would it still need this counter balance shaft? What vibration does it counter? Where is the vibration from?

the nature of inline 4 engine is not balance.... if you do complete balancing also cannot, still need balance shaft no minimize the prob...

you can read here to fully understand it...

Balance shaft - Wikipedia, the free encyclopedia@@AMEPARAM@@/wiki/File:Balanceshaft.jpg" class="image"><img alt="" src="http://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Balanceshaft.jpg/250px-Balanceshaft.jpg"@@AMEPARAM@@commons/thumb/8/84/Balanceshaft.jpg/250px-Balanceshaft.jpg
http://www.autozine.org/technical_school/engine/smooth2.htm

 

[dicktracy]

anyone mind to share on pros and cons on removing 4g63 balancer shaft?
those experienced may elaborate more. thx

:proud:

So in my mind the pros of removing them would be:
* Higher oil pressure because the pump has to support less bearing space
* Less rotating weight ( More HP)
* No chance of BS bearing Failure
* Easier timing belt changes, and less failures.

The Cons:
* Possibly accelerated motor mount wear (but I doubt it)
* It shakes your butt.

 

[spuzzle]

the nature of inline 4 engine is not balance.... if you do complete balancing also cannot, still need balance shaft no minimize the prob...

you can read here to fully understand it...

Balance shaft - Wikipedia, the free encyclopedia
http://www.autozine.org/technical_school/engine/smooth2.htm

the sifu speaks, good info bro

:proud:

So in my mind the pros of removing them would be:
* Higher oil pressure because the pump has to support less bearing space
* Less rotating weight ( More HP)
* No chance of BS bearing Failure
* Easier timing belt changes, and less failures.

The Cons:
* Possibly accelerated motor mount wear (but I doubt it)
* It shakes your butt.

i would say not much changes on oil pressure and be ready to get rock n roll....hahaha

 

[jameswwt]

Hi Spuzzle,
any update on yr balance shaft removal?

Mind to share?

Thanks

 

[spuzzle]

Hi Spuzzle,
any update on yr balance shaft removal?

Mind to share?

Thanks

Havent install yet, been busy for these few weeks...anyway after install still need to run in for 500km i guess