Question about 2001 Chevrolet Blazer

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I relaced my distributor. brought piston 1 to tdc and rotor button on no.1. now the motor almost starts but doesn't and smells of raw gas.

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Get someone to crank engine and you wiggle the distributor a little side to side

Posted on Dec 03, 2009


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In order to set the distributer you need a scan tool to set the cam sync. It take a special procedure that only a scan tool can perform. We get people in a few times a year that did exactly what you did, Only thing is usually the distribuor was not at fault. If you have a no start then you wont be able to to set the cam sync until you get it started.

Posted on Dec 02, 2009


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Did you bring the number one cylilnder to TDC on the compression stroke? It sounds like you may have put it on TDC on the exhaust stroke?

Posted on Dec 02, 2009

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1 Answer

I accidently took the distributor out on a 1992 4 cylinder izzuzu pickup, while doing some mechanic work. How do I put it back on without having to time the whole motor again?

The best way is to turn engine over to #1 cylinder, turn by damper pulley. Remove #1 spark plug first and put a straw or similar device in plug hole on top of piston so you can tell when its at tdc. Just before #1 piston goes down thats tdc. To replace distributor put it back in with rotor button pointing to #1 wire in cap,tighten, replace the plug then start vehicle When vehicle starts adjust distributor by turning it either way. God_bless!

Oct 12, 2016 | Cars & Trucks

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Replaced the distributur ran but barly tryed to rotate the dist but ran out of room. pulled out and rotated then reinstalled now wont start. Help : )

Take out #1 plug if possible. put straw or something similar in plug hole on top of piston, put a wrench on crankshaft pulley nut and rotate engine. when piston gets to the top it should be on tdc. and rotor pointing to #1 wire on distributor cap. replace plug and adjust dist, if piston is on top, and dist, is off. pull dist so the rotor button points to #1. GOD-bless! OR YOU CAN ALSO ALIGN THE TDC MARK ON CRANKSHAFT DAMPER.

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I have 351 motor and have tdc but the rotor is pointing toward #8 is that right?

If you have tdc on the number one cylinder, and it is tdc on the compression stroke, then the rotor should be close to cyl one.
A four cycle engine has four up and down strokes, compression, power, exhaust, and so on.
Depending on the make model and year, the firing order could be 1-3-7-2-6-5-4-8 which would mean the timing chain or the distributor is one cylinder too far advanced if it is pointing to number 8.

Mar 29, 2015 | Cars & Trucks

1 Answer

98 sebring rotor button

#1 piston needs to be at tdc of the compression stroke or the rotor will be 180 degrees off. the cap is marked with cylinder numbers so it should obviously point to the #1 contact tower. as I recall you cannot install a 2.5 distributor wrong as the screw holes will not line up and the rotor is driven by a slot on the camshaft so you cannot really make a mistake in installation. if you are wondering whether you've jumped time a compression test will be of value to you as well.

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Reset timing on chain for 85 olds cutlass

I used to have one of these...there are 2 top dead centre positions you have to watch for. Top Dead Centre "Compression" and Top Dead Centre "Exhaust".

With the distributor cap on, you will know where number 1 is on the distributer, remove the distributor cap and then turn the motor using the crank...keep turning until you see the rotor pointing to number 1. If the number 1 piston is at TDC then you are good to go with it being at TDC Compression- rotor at 1.
If your rotor is at number 1 but your number 1 piston is down then you need to remove the distributor from the rotor 180 degrees then slide the distributor back into the block carefully...remembering to be careful because your oil pump is run by a shaft which snaps onto the bottom of the distributor.

Jul 04, 2012 | Cars & Trucks

2 Answers

Xh falcon timing problem. Ive just dropped the original motor back in and i set all the timing marks but it wont start. I pulled the dizzy cap off and it is out half a revolution so i set it again on tdc...

pull the distributor
turn the crank to tdc compression stroke ( remove n1 plug and put you finger over the hole to get compression stroke ) line the rotor button up with no 1 plug lead
move the rotor button back about 1/2 inch and insert the distributor
as you push it in the button will move around to line up
keep adjusting the button back until it lines up
tighten the distributor down

Sep 21, 2017 | Cars & Trucks

1 Answer

I am having problemsseting the distributor on a 1996 chevy 305. this is a new motor . do i set the pointer at # 6 or # 1

The distributor rotor must point to the post on the cap of the cylinder that is firing. In your case, if #6 is at TDC of the compression stroke, than the pointer must point to the distributor cap post of the #6 cylinder wire. But I must tell you that if you have TDC on #1, and rotate the crankshaft 360 degrees, #1 will be at TDC again...

Jan 31, 2012 | Chevrolet Cars & Trucks

1 Answer

Where does distributor rotor point for tdc

You can't use a distributor to find TDC. To find it you have to turn the engine over until the timing mark on the harmonic balancer ( bottom pulley) lines up with the 0 on the metal tab on the timing cover. When these 2 marks are lined up that is TDC.

HOWEVER, the crank makes 2 turns to every 1 turn of the camshaft so you hit TDC twice. To make sure that you are right you must remove the valve cover and watch the valves as you turn the engine. The proper thing to see is the intake valve ( farthest from the exhaust manifold) open and starting to close as you come up on TDC. As you go past TDC the exhaust valve (closest to the manifold) will start to open. If this is not what you see turn the engine over 1 complete turn to line up the timing marks again. At this point, where the rotor button points is #1 spark plug.

#1 piston, on a GM is always at the front of the motor. If you have a V6 or V8 then #1 will be at the front on the driver's side of the engine. On a 4 cylinder it will the first cylinder. Hope this helps.

Aug 29, 2011 | 1996 Chevrolet S-10 Pickup

2 Answers

Removed distributor to change head gasket, now timing is way off

If the timing chain is still in the correct position its an easy fix. Put screwdriver down spark plug hole #1 and rotate the engine over by hand until you reach TDC e.g. piston fully up. Now your either on the start of the ignition/power stroke or at the end of the exhaust stroke. Im not sure of the firing order of your specific engine but basicly this means that the engine is either firing on 1 at TDC or its firing on its other piston. Just put the screw driver down the other cylinders and find the other piston thats at TDC. Put the distributor back in so that the rotor button lines up roughly with the post on the cap that lines up with one. Put the cap back on and try and start it. If it almost starts just trim up the cap a little (twist it by a few degree either way) If it sounds way out then pull the distributor back out and line it up with its mate piston.
Hope this helps

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5 Answers

Ford 351W

I agree, jumped timing. Check to make sure the dist is tight. Than check for tdc on the #1 cylinder. When the #1 cyl is TDC the rotor should be pointing to that wire on the cap. Take the cap off while checking. Also is easier to turn motor by hand without plugs in motor.

Jul 29, 2008 | 1966 Ford Mustang

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