help!! reamed balance shaft hole

[DSMer541]

so my (front) rear balance shaft hole is completly reamed out from the shaft bearing failing, i didnt realize that i would not be able to put a new bearing in and i have already had all the machine work done and the crank and everything is already in....
so what can i do to block that oil hole off? i want to know what works...not what "might" work....i have alot of money in this block and im not willing to risk it. Is JBweld stong enough to plug it? any help would be great ,thanx

 

[300dollarGSX]

You don't need to put anything in there if you are using the stubby shaft. There is no oiling passage there. The oil passage was in the balance shaft. My engine had the same issue when I bought the car.

 

[DSMer541]

no i meant the back hole in the front shaft .....the holes that are sposed to be blocked off when you take your front shaft out......

 

[donniekak]

Tap the oil passage out and thread it for a small set screw. Use loctite. Oh, disassemble everything to do this, and then blow out the oil passage with brake cleaner and compressed air.

 

[nuclearr]

Talk to your machine shop I have a friend who had this problem. He told me that machine shop put in a "rubber" balance shaft eliminator bearing. Not shure how accurate this is. But I would talk to the machine shop and see what they recomend.

 

[godfather75]

I had the same problem and used a bigger bearing to block the hole.

 

[DSMer541]

I had the same problem and used a bigger bearing to block the hole.

like the front bearing? its a little bigger than the back one, i thought of that but havent tried it because i thought it might be to big. but ill give it a shot .

 

[JacksonAuto]

The correct way to fix this would be to drill and tap the oil hole for an 1/8" pipe plug and LocTite it in place. We've done it many times when the block had spun a BS bearing to the point where a new one couldn't be pressed in.

Talk to your machine shop I have a friend who had this problem. He told me that machine shop put in a "rubber" balance shaft eliminator bearing. Not shure how accurate this is. But I would talk to the machine shop and see what they recomend.

Sounds like they used a rubber freeze plug to fill the void. Probably somthing like in the photo below;

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[300dollarGSX]

no i meant the back hole in the front shaft .....the holes that are sposed to be blocked off when you take your front shaft out......

Ah, I see you edited the original post to make it clearer, too. Using the larger bearing would depend on how much larger the hole is now. Using the plug and LocTite would be a guaranteed fix, though. It's just a little difficult to get a drill and tap in there and you have to do everything at an angle.

 

[JesterJess]

A frined of mine was doing a BS Elim on the cheap. He took two properly sized freeze plugs, put them face to face [] NOT ][. Then he drilled a 1/4 inch hole in the center. He then siliconed all the way around it, put them in [], then bolted them together, pulling them into the hole. It worked perfectly, and had held for almos a year now. I would prefer the tap and plug method myself, but if you can't or dont' want to, this is another method that you could try.

 

[DSMer541]

A frined of mine was doing a BS Elim on the cheap. He took two properly sized freeze plugs, put them face to face [] NOT ][. Then he drilled a 1/4 inch hole in the center. He then siliconed all the way around it, put them in [], then bolted them together, pulling them into the hole. It worked perfectly, and had held for almos a year now. I would prefer the tap and plug method myself, but if you can't or dont' want to, this is another method that you could try.

very interesting....... i got a a new front bearing on the way so we'll see if its big enough to work, if not i might have to try that

"The correct way to fix this would be to drill and tap the oil hole for an 1/8" pipe plug and LocTite it in place. We've done it many times when the block had spun a BS bearing to the point where a new one couldn't be pressed in. "


i dont think i have the tools or the know how to do this propperly, though it sounds like the best thing to do, i already have the block assembled and the head torqed on too, if that would even matter. thanx for the tip though JacksonAuto