Are you sure? That’s the driving pulley not the driven.
CK5
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Replacing Harmonic Balancer On 1974 Blazer with SBC 350
- Thread starter Chief Brody
- Start date
yes if the drive pulley is larger the driven pulley will turn faster, at the same engine rpms
So which one do I use?
I have no idea if the one that came with it is the right one. Anybody know what the real stock one looked like?
My 73 has the larger pulley like this one. I'm pretty confident it was on there from the factory.
That’s what I was saying
Maybe I misread what you said.
On mine the larger pully runs the water pump and alternator.
So you are saying keep the original one?
Yes, I would unless there's something wrong with it.. Here's my picture:
I don't think it is warped, but the guide flange is a little rough, but I don't think that will harm anything
As long as it sits down flush. You can see in the picture of mine the big pulley has a slight ding on the rim of it and it's not been a problem.
My engine has the 2 small inside and larger out side I'm confident that it is original. inside grove large A/C, power steering belt middle grove Power steering and water pump outside larger diameter.
I did says slower in first post, which is wrong. I thought I said wrong speed. I had to think about it after you called me on it lolThat’s what I was saying
Let's talk about installing a new seal again. I am going to try to do something like using the installer or bolt and a seal press or socket to press the seal in so I don't have to hammer it from an awkward angle like from under or above. I have a cheap bearing and seal press kit and a nice Mac Tools Seal press kit, but neither has a billet collar with a hole big enough for the crankshaft.
I read somewhere that putting the seal in the freezer overnight would help? From a physics standpoint it sounds like it might, but has anybody done that before? The problem is this thin timing cover with no bracing on the back...and I really don't want to take the water pump and timing cover off.
I read somewhere that putting the seal in the freezer overnight would help? From a physics standpoint it sounds like it might, but has anybody done that before? The problem is this thin timing cover with no bracing on the back...and I really don't want to take the water pump and timing cover off.
I have put them in the same way you did the first time with no ill affects. But if you want you could build an install tool with some allthread or a long bolt that goes in the crank, then put your socket over it with a washer and nut.
Freeze the seal. It’ll help.
So if you find a piece of tubing to match the seal diameter and longer than the crank snout by 1/2" you can use the center bolt hole with a large washer to install the seal.
Put seal in place, tubing, washer, bolt, ( the orignal bolt will be to long) tight bolt to press the seal in. do not let the tubing turn. hold with a pipe wrench or weld a handle something like that.
Put seal in place, tubing, washer, bolt, ( the orignal bolt will be to long) tight bolt to press the seal in. do not let the tubing turn. hold with a pipe wrench or weld a handle something like that.
Where can I get a small piece of 2 3/8 inch DOM
Doesn't have to be steel can be plastic. Abs pvc or ?
