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Old 02-22-2013, 08:11 PM
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Re-installing Chevy Small Block Distributor

Just completed installing new intake manifold, ready to re-install my distributor.
I have NOT moved/turned the engine over either manually or via starter.
Can I just drop the distributor right back in regardless if I'm on "top dead center" on #1? Not sure what position the rotor was in so i'm guessing I could be off by 180 degrees????

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Old 02-22-2013, 08:33 PM
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you can only be wrong once
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Old 02-22-2013, 08:50 PM
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You could be out 720. You'd have to know where the rotor was to do that.
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Old 02-22-2013, 09:03 PM
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720º

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Originally Posted by bowtie44s View Post
You could be out 720. You'd have to know where the rotor was to do that.
roflmao! thats a good one
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Old 02-22-2013, 09:20 PM
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Quote:
Originally Posted by vinniekq2 View Post
roflmao! thats a good one
Why is that funny? The crank has 720 degrees rotation in relation to the rotor. Yes 720 would be 0 but he could be anywhere in between.
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Old 02-22-2013, 09:22 PM
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if your asking that question what do you think would be the proper thing to do.
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Old 02-22-2013, 09:23 PM
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Sorry, I read it wrong. I thought he just shut the engine off and pulled the distributor. He said he had it on tdc. Missed that part, sorry.
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Old 02-22-2013, 10:04 PM
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If the motor has not been turned over the distributor should drop right in and start, since the rotor should be in the correct position. If not bring cyl #1 to TDC, pull spark plug, and bump motor until you feel air pressure coming out of chamber/spark plug hole. Then point rotor at cyl #1 drop distributor in.

Before dropping distributor in, look down hole and see where the oil pump shaft lines up and set the notch in the distributor shaft to line up as well. Drop it in, twisting the distributor to get it to drop all the way down - sometimes a bit tricky. Then start car.
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Old 02-23-2013, 12:32 AM
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720 out? Whether it's at TDC or not...I'm with Vinnie!
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Old 02-23-2013, 01:46 AM
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Quote:
Originally Posted by 64Joker View Post
Just completed installing new intake manifold, ready to re-install my distributor.
I have NOT moved/turned the engine over either manually or via starter.
Can I just drop the distributor right back in regardless if I'm on "top dead center" on #1? Not sure what position the rotor was in so i'm guessing I could be off by 180 degrees????
If you did not mark the position of the rotor, you will need to start from TDC.

Help is here.
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Old 02-23-2013, 07:05 AM
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tdc ????

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Originally Posted by cobalt327 View Post
If you did not mark the position of the rotor, you will need to start from TDC.

Help is here.
327 is correct.. if u forgot where u removed it u NEED to start somewhere known.. like tdc.. pull the plugs and stick your finger in #1 hole and start turning the motor over.. by hand.. u can also pull the drivers valve cover and watch the rockers, when both are showing closed look at balancer and rotate to tdc. stick dizzy in pointing to #1.. the timing will be a little off but will start..
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Old 02-23-2013, 08:46 AM
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Definitely thats half the hassle, knowing your on TDC of the compression stroke if you don't want to disturb the tappet cover gasket. Turning the engine over by hand for some engines is difficult if not impossible because of the fan in the way and fighting against compresson on all the cylinders if the plugs are installed. The combination of a wire type remote clipped to the starter and a compression tester can do the trick along with making a nice fat white mark with chalk where the TDC mark is on the harmonic balancer as it can be hard to see.

The felt mark trick that cobalt327 has a link to makes it SO much easier to get the dist dropped in and can see at an instant if the rotation orientation of the distributor body is where you want it and that the rotor is pointed directly at number one tower. Once one knows the moves to make, there is no guessing that its right or not.
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Old 02-23-2013, 11:53 AM
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Get the number 1 piston to TDC and look down the distributor hole in the manifold.
You might need to line up the oil pump rod like this.


You can do it with a long screwdriver.
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Old 02-23-2013, 01:49 PM
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Follow-up question ??

Forgot to mention that I'm running an HEI setup, no points! Would that make a difference in setting up the #1 on tdc or anything else in this procedure?
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Old 02-23-2013, 02:02 PM
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hei dizzy

no difference at all.. just point the rotor button to #1.. i sometimes forget of working on regular cars.. Tbuckets are easy to do.. i feel u should go to the parts store and get a starter button and hook that up to bump the engine around to TDC. i'd also pull all the plugs so as not to have to over come compression and take a chance of going past the point.. no plugs will allow u to bump better. don't forget, if u are on TDC and the dizzy don't go all the way down u WILL need to alin the oil pump shaft to the dizzy shaft.. the dizzy will also spin into the hole.. just pay attention and u'll figure it out..
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