Question about 1997 Oldsmobile Cutlass Supreme

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PUSH ROD LENGHTS

On a3100 M dose the short push rods go to the intake valve and the long ones go to the exchaust valve?

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Ok... get you sigth to the level of each valve put the puh rod and has to be the same heigh also when you tigth the roker arm one a this is short you feel has to much play.than normal.. so that place is for a long one.when yoou have all this done check one by one tomake sure that no loss o to much play. before you put the intake manifold

Posted on Feb 26, 2009

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I am replacing the head gasket on my 2000 pontiac grand am 3.4L engine. The push rods got mixed up and i need to know if the shorter rods go on the intake or exhaust side?


As you assemble things, it will become obvious as to whether you're attempting to put in a wrong length push rod. If it is wrong, it will appear that you need to adjust the rocker arm way different than it was originally to make it work. They just will not readily interchange. I think you'll do just fine.

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Diagram for push rod instlation


Lay your pushrods in a row exactly like you removed them and work backwards to install them if you want each pushrod to set with its original lifter.

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98 oldsmobile achieva front head push rod order


You are thinking too hard.

It is VERY simple. The Intake valve push rods (marked with ORANGE paint) are shorter than the exhaust valve push rods (marked with BLUE paint) If you cannot see the paint, you can always stand them up next to each other...it is pretty obvious which ones are which.

BOTH heads are EXACTLY the same - they are interchangeable. It is just that one is turned one way and the other is turned the other way so the exhaust and intake ports will be on the correct sides. (intake port towards the center of engine, exhaust port to the outboard sides of the engine.) You do not need to go searching the internet for some "order". All you have to do is LOOK AT THE HEAD to tell which valve is intake and which valve is exhaust.

So then it is as simple as: Put the short push rods on the intake and the long push rods on the exhaust....

Apr 21, 2012 | 1998 Oldsmobile Achieva

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Which side of the motor on a 3.1 buick 1998 century is the intake side and the exhaust side. I'm installing push rod that are different lenghts and call for exact positioning on the intake side as well...


That is a V6 or V8 standard mounted engine. When they say intake side and exhaust side they are talking about the valves. Typically each cylinder has 2 valves the front valve is the intake the back valve is the exhaust.If you haven't already gotten it I highly recommend you get the Haynes or Chilton's repair manual from your vehicle so you have the adjustment specs or priming procedure if you have hydraulic lifters.

May 20, 2011 | 1998 Buick Century

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Engine not failed oil pressure good engine ticking think it is rod bearings how do you replace on 1997 chev Blazer


hold up rod bearings were did you get that?lets take it from the top.camshaft lobs move lifters on rotation,which lifters move push rods,push rods push valves up and down,which other side of valves push up and down valve stems,which open and close exhaust and intake stems.ok now were clear on that to see your push rods.take off your valve covers on side with tick.1.check for valve loosness.need a feeler gauge for this and specs for you truck to do this.because ticking is mostly associated with valve loosness or to tight.2.if rod is bad loosin valves but not off and inspect the rods for bends.on a flat surface.replace if bend.also make sure they to go back in same place.and repeat step 1.finally noise continues need to take in and checked possible internal damage.

Aug 17, 2010 | 1997 Chevrolet Blazer

1 Answer

Sequence for the push rods for the intake & exhaust on a 2001 Grand Am GT there are 3 long ones & 3 short ones, While replacing the intake manifold gaskets, I forgot where they go!!!!


The valves that are furthest from the intake, on the outside perimeter of the head, closest to the spark plugs are small diameter valves. These valves use the short rods. The valves that are [non-uniformly] on the interior of the head use the large diameter valves. These valves use the long push rods. This is not due to the diameter, but do to the proximity of the valve on the head with respect to the rod length required to push it. So, looking at a picture of the "front head," closest to the front of the car, from underneath will verify that diameters are small - large - large - small - large - small. Inspecting from above you should note the order of valves as outside - interior - interior - outside - interior - outside. And if you invert that same head to the "rear head" configuration (180o) it would become small - large - small - large - large - small (outside - interior - outside - interior - interior - outside).

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The answer is this:
The rear head (2-4-6) will have push-rods in the following configuration:
short - long - short - long - long - short

The front head (1-3-5) will have push-rods in the following configuration:
short - long - long - short - long - short


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1 Answer

Random/multiple cylinder misfire detected


when u bent the push rod u might have bent the valve in the head ,by puting the longer push rod where it didnt belong it kept the valve open when the piston came up and the force of the piston on the valve bent the push rod,you will have to remove the head,hope this helps

Sep 20, 2009 | 2000 Pontiac Grand Am GT

1 Answer

Need the positioning of push rod long and short push rods 3.1 motor


Hi the LONG push rods are EXHAUST
the SHORT ones are INTAKE

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1 Answer

Need to know if long push rod goes into the exhaust valve


Long push rods are for exhaust valves. Short are intake.

Apr 24, 2009 | 1996 Chevrolet Monte Carlo

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