C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Balancer Install Probs..What Size Tool?

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Old Sep 23, 2002 | 04:59 PM
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Default Balancer Install Probs..What Size Tool?


Hey people,
I was able to pull the balancer off with no problems but didnt have the tool to install it.

So the other day,I drove around to about 6 or 7 stores in town looking for a longer 7/16 bolt I could use to press the balancer on.

No one had the bolt I needed...everyone kept referring me to the same store I just came from...We even called the next town 45 minutes away asking for the tool to install and no one had it there or the stores I came from.No bolts or tool.

So I gave up and ordered the install tool kit from summit and it came today.As always,they make the center bolt too damn long and this tool is only ideal for a motor out of the car.Its still doable but you gotta move more stuff.

After disconnecting the steering rack lines and making some room down there,to trial fit and barely getting in there,the large nut on this tool used for pressing the balancer back on...well whaddya know?
I dont have a wrench this Big.

The largest wrench I have is 1-1/4 and this is still too small.I tested a 34MM axle nut socket and it fits but now I need a wrench either a 34MM or in standard size.

What size is the standard of 34MM?So I can hopefully find a store that sells a wrench this big.

Sorry for ranting,but this stuff kills me..of all the common nut sizes they couldve made,I have to go track down a huge wrench to use this tool.Its costing more money now to install the balancer with tools then it is for the part alone...LOL...I know,Im sounding like a
whiner...could be worse.Ill be happy when this is over...

Thanks for listening.
:)


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Old Sep 23, 2002 | 05:43 PM
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Default Re: Balancer Install Probs..What Size Tool? (Bill's86Coupe)

I just found a slightly longer bolt and drew it down with that....and some washers. Just make sure you engage a few thread before tightening, or you will pull them out.

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Old Sep 23, 2002 | 07:05 PM
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Default Re: Balancer Install Probs..What Size Tool? (ski_dwn_it)

Hey ski,
Thanks for the reply..Did you see what I said about using a longer bolt?No one in my area had one in the size I needed.

So I now have the proper tool now but need a big wrench that can turn the drive nut on the tool.Wish i couldve done it that way as you did...save alot of time and stuff.

Autozone said on the phone they had a 34MM wrench so hopefully it will do the trick.
I do like this balancer instal tool from Summit made by Moroso.It threads into the crank then has a larger diamter nut length that goes back and the end of the bolt has a head for a socket so I can turn the nut while holding the end of the bolt and keeping the crank from turning.I just wish they didnt make these tools/nuts so big...oh well!
:)
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Old Sep 23, 2002 | 07:08 PM
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Default

So I now have the proper tool now but need a big wrench that can turn the drive nut on the tool.
Thats the most aggravating thing in the world. :yesnod: When doing it in the car I had to put a 16mm wrench on the shaft to hold it still and go 1/6th turn at a time with a huge adjustable wrench on the drive nut. When I took it off the car when it was on the engine hoist the other day it took all of 1 minute to do since you could turn the wrench the whole way. :rolleyes:
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Old Sep 24, 2002 | 03:18 AM
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Default Re: Balancer Install Probs..What Size Tool? (Bill's86Coupe)

I just reinstalled mine after replacing the timing chain and gears. I had my radiator(s) out so it was much easier....However, there is a tech post by Lars Grimold (sorry if I butchered your name Lars, doing it from memory) which is very helpful. Check that out for some great info.

In my case, I just whacked it with a 5# sledge and a brass bar uintil I could get the bolt started. Didn't fall apart or do any damage. Able to draw it up the rest of the way with the original bolt and torqued to 60#. Done!! :D
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Old Sep 24, 2002 | 04:23 AM
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Default Re: Balancer Install Probs..What Size Tool? (qwerty111)


Scorp,
Thats how it always goes....when its in the car,takes forever,when its out,its a real quick job...too bad they cant make the tools to fit them when theyre in the car,better!!

Qwerty,
Thanks for posting...I have Lars tech write up saved from so long ago and read it up before I did the job.

In fact I improved on his tips and combined 2 tools to make a puller that didnt even require bolt cutting or disconnecting any steering lines or anything.

I need to market this puller tool!!
:)

My problem is I worry too much...see,I had a rebuilt powersteering pump installed in another car and even when I fully threaded the pulley installer bolt,it still stripped the threads!( fixed it thank god,but was alot of work on my part)

I never had any problems doing the Vette stuff but I Just didnt want to take chances being the crank bolt hole is way down there,and if something happened,it be harder to retap the hole or getting forced to pull the engine out for a stupid fix.
Cant have that these days.Thats why I didnt hammer the SOB on there.

Btw people,the nut size IS 34MM...the tool uses a 7/16 thread for the crank,7/8 thread for the installer drive nut,but a METRIC wrench drive nut thats 34MM.There isnt a standard size wrench I can find...1-1-4 wrench is just a few cells too small...next one up is too losse..I didnt find a standard size that fit this nut.
What fun eh????
:crazy:
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Old Sep 24, 2002 | 10:55 AM
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Default Re: Balancer Install Probs..What Size Tool? (Bill's86Coupe)

So how about the metric crescent wrench? :rolleyes: :D
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Old Sep 24, 2002 | 02:31 PM
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Default Re: Balancer Install Probs..What Size Tool? (Bill's86Coupe)

DOH! I forgot to tell you that when I installed mine, I had to disconnect the lines and also, I don't think I had the bellhousing bolted up yet, which made it easier(?) to tilt the engine. :rolleyes:

But to install it, I was able to use that tool and a 12 inch crescent wrench.
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Old Sep 24, 2002 | 06:19 PM
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Default Re: Balancer Install Probs..What Size Tool? (HighHopes85)

Hey guys,
Yeah I had to settle and get a crescent wrench...I never had one in the tool box and never cared for them.Using with the installer tool,it did the trick..looks like im going to keep these little things around in the box now.
:)
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Old Sep 25, 2002 | 07:49 AM
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Default Re: Balancer Install Probs..What Size Tool? (Bill's86Coupe)

To make things easier, put the damper in boiling water for about 15 minutes. Lube the hub with engine oil (oh yeah wear some gloves) and perform the install.
The proceeding hint is from the Summit Pro/Street balancer install instructions. Actually they said to use an aluminum block and a big hammer to pound their balancer on. But since you don't have the room I left that part out.
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Old Sep 25, 2002 | 12:54 PM
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Default Re: Balancer Install Probs..What Size Tool? (Rynda)

Hey Rynda,
Ive heard tech tips like that...glad to say I didnt even need to do this.Once I set the balancer on straight by hand and turned the nut on the tool,it went on super easy.
I just used a little anti seize on the crank snout as a lube and to prevent rusting together.

I would imagine though,certain aftermarket balancers are made with slightly tighter tolerances and the expand them up by heat trick makes them slip on easier.
:)

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