Ok, after lots of thinking, and consulting with a few engine builders I have succesfully eliminated my balance shafts in my h22 engine. First off there are 3 bearings that each balance shaft rides on. The rear balance shaft runs on 2 bearings in the block, and a third bearing in the oil pump casing. The front balance shaft runs on 3 bearings in the block, and then sticks out of the oil pump casing.

All that is needed to to to the bearings that are IN THE BLOCK is to turn them so that the oil holes do not line up, therefore blocking the oil flow to the bearing and not losing oil pressure. Then the last bearing in the oil pump casing for the rear balance shaft needs to have a plug pressed into it, and same with the hole in the casing for the front balance shaft.

These plugs are now readily available for $40 shipped through my roommates machine shop: Control Tech, and the subcompany AlienAutotech. The plugs were a perfect .0005" press fit and I pressed them in myself with a cheap press from Harbor Freight. Instead of hassling with finding the correct freeze plug and having it be ghetto, this kit is beautiful.

 

very nice, back on top

 

Nice
Have you driven a car before and after doing the balance shaft removal? Impressions?

 

I'm in, tell me how to pay your ***.....

 

Can someone please explain to me what are balance shafts and why would it be an advantage to remove them.

Thanks.

 

holy search batman

 

Pictures are kinda dark. But please share experiences with them taken out..

 

is this a track car. i hope it is, cause there is no use to take them out. the H series have a horrible rod ratios and those balance shafts make the engine run smoother and help at high rpms, and cold starts. this kid i know removed them but then he put them back in. sure your engine revs faster but its something i'm willing to sacrifice for durrability

Has anyone taken the balance shafts out of their H series? any difference? how are they on street cars?

 

Help on cold starts? whatever. There is no durability/reliability disadvantage from not running balance shafts on an I-4. They are a creature comfort only, and there are plenty of engines of larger displacement & longer stroke that don't have them.

Other than a negligible weight reduction, I don't see any advantage to these plugs compared to just leaving in the shafts & disconnecting the belt.

 

if u build the motor i would think it would be fine as long as u balanced the rotating assembly.

 

So it is to be assumed then if building a motor. You should take out the balance shafts and balance the whole assembly to get the most power out of your setup? Just to summarize of course.

 

The bottom end has been fully balanced. The engine is still on the engine stand waiting for 1 o-ring to show up from Honda, then it will go in the car. It should be 2 weeks at most. I will post some more pics. BTW, I have ridden in 2 cars that have eliminated the balance shafts and the difference in vibration is MINIMAL!

 

Yes they have nothing to do with crank and bearing vibration.

I owuld have grabbed these plugfs but they require 10 buyers....I'll just leave them in and disconnect the belt...

 

LMFAO..... your such a ********

 

Just to be clear, having a fully balanced bottom end does not replace the balance shafts. The balance shafts counter 2nd order vibrations that are inherent in the design of the inline 4-cylinder engine.

What balancing the bottom-end will do is get rid of imbalances & vibrations that shouldn't be there in the first place. It will prevent undue stress on the rotating assembly, & prolong bearing wear.

 

Everyone has their own opinion on the pros and cons of such a modification, and has their own theories as to why they are correct. I am going off of what I have discussed with my engine builder, who has been building high performance engines for over 20 years! I will only KNOW the FACTS after personally running the engine without the balance shafts. Regardless of whether or not I will feel more vibrations this is the best way to properly eliminate the balance shafts that I have seen so far. I guess we will have to ask other members of this board, as I know of at least 3 that are running H22/23's without balance shafts.

What I KNOW is that a close friend of mine has ran his 4g63 without balance shafts for the last year and the car is daily driven making 320 horsepower.

 

Please contact: Turbo24u@aol.com for purchase. Mention Honda-Tech and you will be taken care of.

 

not necessarily true as mentioned above by someone else, due to the inherant nature of the 4 banger there is a lot of vibration in the engine which over a period of time during normal driving conditions could pose major problems so if it's a track car you will most likely be rebuilding the engine so you wouldnt have to worry about this problem. if its street driven you're prolly in for some hard times down the road if you dont get the whole thing balanced


[Modified by F**KTheSystem!, 6:06 AM 1/31/2003]

 

i have about 3000 miles of running with the balance shafts disabled in my f22 and have not noticed anything abnormal, the engine already has 100000 miles on it as well..... and if you say it dosnt help ur full of it.... i ran 15.6 at 90mph and all i have done is a act hdr6 clutch a accord cai and the removed balancer belt

 

Ok, please state how you know this as FACT! This is all theory, not necessarily accurate or inaccurate theory, but it is THEORY. Opinions welcome, opinions stated as fact: not welcome. I have personally ridden in a car designed with balance shafts that has removed them, the car is heavily modified and DAILY DRIVEN, over a year and no problems. I also know of other members of this board doing the same. I guess we will have to find out for sure! Please say how you KNOW what you are posting!

 

And how did you go about removing the balance shafts? Very interested,.... and DETAILS!

 

can you do me a favor? point out exactly where i mention anything about a fact..thank you, i reast my case




[Modified by F**KTheSystem!, 6:31 AM 1/31/2003]

 

Don't cry, and please whatever you do,.. don't "reast" your case!

 

oh, sorry bout that typo..i just dont like it when people say i said something i didnt...all i was doing was trying to give some non- factual helpful info..is that so bad?

 

umm balancer shafts reduce 2nd order vibrations. These vibrations do not act on the crank and bearings or the rotatiing assembly...it's for comfort.