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Author Topic: pulleys don't line up?!?!  (Read 10246 times)

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Cobravii

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pulleys don't line up?!?!
« on: February 14, 2017, 09:20:46 PM »
Has anyone seen this before?
It is a scat crank, I have new timing gears, no oil singer, new spacer and new balancer but when I install everything my pulley are one groove out.
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rhinosoft

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Re: pulleys don't line up?!?!
« Reply #1 on: February 14, 2017, 09:59:19 PM »
I have a very similar setup with new SCAT stroker and balancer also. The water pump I have is cast iron and I cannot recall the pulley being so close to it.

When I get home I can send images of mine, everything seems to line up - would that help?

Graeme
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Cobravii

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Re: pulleys don't line up?!?!
« Reply #2 on: February 14, 2017, 10:19:29 PM »
my water pump is aluminium. could it need a spacer?
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rhinosoft

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Re: pulleys don't line up?!?!
« Reply #3 on: February 14, 2017, 10:27:38 PM »
Don't know, just pointed that out. Wait for the guys to login later and you will find out.

Graeme
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rhinosoft

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Re: pulleys don't line up?!?!
« Reply #4 on: February 14, 2017, 10:43:31 PM »
Can you post the brand of your new balancer as well?
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rhinosoft

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Re: pulleys don't line up?!?!
« Reply #5 on: February 15, 2017, 04:08:37 AM »
Here are some images - might help a bit, not sure, image of the part number for the new balancer as well. Everything seems to line up nicely with this setup.

Graeme











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My427stang

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Re: pulleys don't line up?!?!
« Reply #6 on: February 15, 2017, 04:29:52 AM »
I am not sure how that could happen unless you have some wrong parts.  A small misalignment could happen from the crank, but not over 1/2 inch
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Ross
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jayb

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Re: pulleys don't line up?!?!
« Reply #7 on: February 15, 2017, 07:49:52 AM »
I was going to say the same thing.  Did you get the pulleys in a set, or separately?
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Jay Brown
- 1969 Mach 1, Drag Week 2005 Winner NA/BB, 511" FE (10.60s @ 129); Drag Week 2007 Runner-Up PA/BB, 490" Supercharged FE (9.35 @ 151)
- 1964 Ford Galaxie, Drag Week 2009 Winner Modified NA (9.50s @ 143), 585" SOHC
- 1969 Shelby Clone, Drag Week 2015 Winner Modified NA (Average 8.98 @ 149), 585" SOHC

   

Cobravii

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Re: pulleys don't line up?!?!
« Reply #8 on: February 15, 2017, 11:07:37 AM »
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Drew Pojedinec

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Re: pulleys don't line up?!?!
« Reply #9 on: February 15, 2017, 12:44:27 PM »
When you installed the crank spacer, did it push all the way back?
When you installed the balancer, how close did the end of the crank come to the end of the balancer?
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Cobravii

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Re: pulleys don't line up?!?!
« Reply #10 on: February 15, 2017, 07:45:18 PM »
I'm going to flip it over and pull the oil pan so I can see down inside the timing cover.....
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Drew Pojedinec

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Re: pulleys don't line up?!?!
« Reply #11 on: February 15, 2017, 08:15:37 PM »
Dunno if it's a common issue or what, but I had to sand the crankshaft keys to fit both the crankshaft and spacer.  It wanted to bind otherwise.
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Cobravii

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Re: pulleys don't line up?!?!
« Reply #12 on: February 16, 2017, 09:06:21 PM »
Ok, so today I pulled the pan and could no see any gaps BUT I think I may have pulled a rookie move. Is it possible to install the lower crank gear backwards? If it is, I think I found my problem.

Larry
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jayb

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Re: pulleys don't line up?!?!
« Reply #13 on: February 16, 2017, 09:20:59 PM »
If the crank gear is on backwards the timing chain would be seriously misaligned.  If it is, then what you said would make sense, because the crank gear has a relief in the backside to allow it to slide further onto the crank...
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Jay Brown
- 1969 Mach 1, Drag Week 2005 Winner NA/BB, 511" FE (10.60s @ 129); Drag Week 2007 Runner-Up PA/BB, 490" Supercharged FE (9.35 @ 151)
- 1964 Ford Galaxie, Drag Week 2009 Winner Modified NA (9.50s @ 143), 585" SOHC
- 1969 Shelby Clone, Drag Week 2015 Winner Modified NA (Average 8.98 @ 149), 585" SOHC

   

Cobravii

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Re: pulleys don't line up?!?!
« Reply #14 on: February 16, 2017, 09:52:31 PM »
nope, timing chain is straight as an arrow and the timing marks are on the outside. Weird.

I'm going to tear down the from end next days off.
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