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Old 06-24-2008, 05:13 AM
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SBC harmonic balancer removal and cam install advice

Will this tool remove a harmonic balancer from a Chevy 350?

http://cgi.ebay.co.uk/ws/eBayISAPI.d...MEWA:IT&ih=004

I'm about to embark on a cam change and want to make sure I have all the tools before I start.

Also, am I right in thinking that when I install a new timing chain set, the crank sprocket can only go on one way and that, when it's on, the timing mark will be at 12 o'clock with the engine at TDC? As you can tell, this will be my first time installing a cam. Does the crank sprocket just slip off the end of the crank once the chain is off?

Will I need a degree wheel to install my new cam, or is it just 'plug n play' with the cam sprocket timing mark at 6 o'clock and the crank sprocket timing mark at 12 o'clock? Do all timing sets come with these marks?

Sorry for all the noob questions.

Thanks,
Ian.

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Old 06-24-2008, 06:02 AM
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Dont have access to ebay due to security on my computer at work.

The cam mark will be at 6 position and the crank will be at 12.
Make sure that the balancer has no lip on the sealing surface. If it does Federated sells a sleeve that goes over the balancer to cover the lip and renew the riding surface for the seal. I believe it is $5 well worth it. Sand the halancer extension that the seal rides on just enough to clean the surface I use 180 grit. put the balancer in the freezer for over an hour and heat the sleeve in a oven or use a hot plate, or boil it in water. Aply the red locktite to the balancer and drop the sleeve on the balancer it sshould drop right on. if it doesnt get ready to put a piece of wood over the sleeve a tap it with a hammer.
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Old 06-24-2008, 06:08 AM
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SBC harmonic balancer removal and cam install advice

that tool will pull balancer
you will need to put on the right end , so not to enter treads and screw them up
you will need a three jaw puller for gear on crank end , and remember to protect them threads .
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Old 06-24-2008, 07:06 AM
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Quote:
Dont have access to ebay due to security on my computer at work
Um, you mean you're restricted from anything not work related?
Quote:
Will this tool remove a harmonic balancer from a Chevy 350?

Also, am I right in thinking that when I install a new timing chain set, the crank sprocket can only go on one way and that, when it's on, the timing mark will be at 12 o'clock with the engine at TDC?

Does the crank sprocket just slip off the end of the crank once the chain is off?

Will I need a degree wheel to install my new cam, or is it just 'plug n play' with the cam sprocket timing mark at 6 o'clock and the crank sprocket timing mark at 12 o'clock? Do all timing sets come with these marks?
Yes it ought to work. Pay attention to not damage of the threads or snout.

Put the crank gear on so you can see the mark - not being a smart arse, and you need to be at TDC #1 for the timing marks to even be close.

Some may 'slip' off, but don't count on that... some are micro welded.

It's hard to go wrong with a degree wheel and yes, most are of the 'plug n pray' type.
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Old 06-24-2008, 01:07 PM
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You can remove the cam gear and chain with out removing the crank gear..
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Old 06-24-2008, 01:16 PM
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Quote:
Originally Posted by n-gin
You can remove the cam gear and chain with out removing the crank gear..
See just takes some time.
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Old 06-24-2008, 01:55 PM
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Quote:
Originally Posted by n-gin
You can remove the cam gear and chain with out removing the crank gear..
Thanks for the pics. So, the chain deflects enough to allow removal of the cam sprocket whilst leaving the crank sprocket in place? Are there any issues with running an old crank sprocket with a new chain and cam sprocket? If my crank sprocket is easy to remove, I'll replace it anyway, but this would be handy if it doesn't want to come off.
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Old 06-24-2008, 02:47 PM
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Personally I´d install a new timing chain set, you´ll chew up a new chain
on a used sprocket.
The chain does´nt have to flex much as the nose of the cam to which the cam gear attaches is short.

To save yourself a lot of hassle check out Amazon.com or the .co.uk and buy yourself a book on How to build the Smallblock Chevrolet
You´ll have all the info at your finger tips and it´s a good idea to read it through several times before you start.
It´s the one I used and my motor is still running after four years.

BTW, do you buy your parts from UK based dealers ?
If so you may want to check out buying direct from places like Summit , NOT Jegs they kill you on shipping.
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Old 06-24-2008, 05:20 PM
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If you are changing the chain, change both gears. If you are re-installing the chain, then just pay attention to making sure it goes back on the same way it came off. The side that was out needs to stay out so the chain will be turning the way it was before. The crank gear can be a pain in the butt and requires patience and a good puller most of the time. If you do remove it you will most likely need to warm it up to get it installed. DO NOT DRIVE IT ON or you run the cance of ruining your bearings.
Note that after it is installed it will be at tdc compression stroke on #6 not
#1. You will need to rotate it 180 to drop in the distributor or set the distributor up on #6 not #1

Chet
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Old 06-24-2008, 05:25 PM
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Quote:
Originally Posted by T-bucket23
If you are changing the chain, change both gears. If you are re-installing the chain, then just pay attention to making sure it goes back on the same way it came off. The side that was out needs to stay out so the chain will be turning the way it was before. The crank gear can be a pain in the butt and requires patience and a good puller most of the time. If you do remove it you will most likely need to warm it up to get it installed. DO NOT DRIVE IT ON or you run the cance of ruining your bearings.
Note that after it is installed it will be at tdc compression stroke on #6 not
#1. You will need to rotate it 180 to drop in the distributor or set the distributor up on #6 not #1

Chet

Thanks. Will a puller like this one get it off...

http://cgi.ebay.co.uk/NEW-4-UNIVERSA...d=p3286.c0.m14

I'm not sure I understand what you're saying about the position when it goes back on the crank snout. If the crank is at TDC, won't the gear also be at TDC when it goes back on (ie. surely it will go on in the same orientation as the gear that came off)? Just trying to understand.
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Old 06-24-2008, 06:16 PM
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Another thing, don't push the cam in too far, don't tap the cam gear on so the cam is pushed back. That might dislodge the plug at the rear of the engine and you'll end up with an oil waterfall.
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Old 06-24-2008, 06:24 PM
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Quote:
Originally Posted by v8hed
Thanks. Will a puller like this one get it off...

http://cgi.ebay.co.uk/NEW-4-UNIVERSA...d=p3286.c0.m14

I'm not sure I understand what you're saying about the position when it goes back on the crank snout. If the crank is at TDC, won't the gear also be at TDC when it goes back on (ie. surely it will go on in the same orientation as the gear that came off)? Just trying to understand.
I was talking about the chain if you were going to re use it. If you are talking about timing, people assume that when the crank dots are lined up that it is at TDC on # 1 and it is not. It is on TDC on # 6. It is a common mistake and I was just giving you a heads up
Sorry if I confused you

Chet
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Old 06-24-2008, 06:26 PM
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One other thing is you need to be careful of cheap tools, they can hurt you or the parts you are working on. I would not trust a $4 puller on my engine

Chet
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Old 06-24-2008, 06:27 PM
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Quote:
Originally Posted by T-bucket23
I was talking about the chain if you were going to re use it. If you are talking about timing, people assume that when the crank dots are lined up that it is at TDC on # 1 and it is not. It is on TDC on # 6. It is a common mistake and I was just giving you a heads up
Sorry if I confused you

Chet
Yea, that's what I thought... dotted lined-up (crank gear dot at 12 o'clock and cam gear dot at 6 o'clock = TDC on #1). Is that not the case?

Will that puller I gave the link to (std. 3-leg puller) get the crank gear off?

Thanks.
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Old 06-24-2008, 06:32 PM
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Quote:
Originally Posted by v8hed
Yea, that's what I thought... dotted lined-up (crank gear dot at 12 o'clock and cam gear dot at 6 o'clock = TDC on #1). Is that not the case?

Will that puller I gave the link to (std. 3-leg puller) get the crank gear off?

Thanks.
Actually, with the crank at 12 and cam at 6, it will be TDC on #6. (here we go again! LOL Why Chevy did this, no one knows, but it is....what it is.)

After the gears are on, rotate the crank one turn so crank is 12 and cam is 12.....THEN, it's on TDC #1.
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