Author Topic: Tearing Down...  (Read 704 times)

Offline JRoss22

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Tearing Down...
« on: October 26, 2006 - 06:56:22 PM »
I was wondering if anyone could help me with the steps to tearing down my '72 340? So far I have removed the carb, But how do I go about removing the ac pump, Distributor, Intake and all that? I really need to get on the ball with tearing down my car so any help would be apprecitated.  :feedback:




Offline mrbill426

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Re: Tearing Down...
« Reply #1 on: October 26, 2006 - 07:44:19 PM »
Are you taking the whole car apart, or jusy pulling the engine and transmission?

To start off, if you have never tackled a teardown like this before get yourself a camera (preferably digital) to take lots of photos of how things are BEFORE you remove them.  If you can, find a service manual for your car to help with the order of disassembly.  Have a place ready to place the parts so you won't have to keep moving them around.  There is nothing super complicated about these cars so don't be overwhelmed, just tackle one step at a time. 

Have plenty of Ziploc bags, tags/labels, and permanent markers to record what is what and what wires, hoses, etc went where.   Take your time with it, don't' "force" things apart.  If you are up against stuck or rusty fasteners  (I know I was), soak them good with a penetrate like PB Blaster or Kroil before trying to break them loose.  Be carful e with whatever gasoline may remain in the car, as well as engine oil, antifreeze, transmission fluid, and whatever A/C refrigerant may be in the system.

Always use proper lifting devices, and JACK STANDS or heavy wood blocks to support the car.

Good luck and enjoy! :2thumbs:
 :working:
MOPAR or NO car!

'72 'Cuda 340, white on white
'72 Sebring; bracket project
'64 Imperial Crown black on black
'66 Imperial Crown; parts car

Offline Killer_Mopar

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Re: Tearing Down...
« Reply #2 on: October 26, 2006 - 09:48:22 PM »
MrBill426 gave you great advice and pretty much said everything there is to say about disassembly. I want to stress to you that because this is your first time you need to use a camera and it is always wise to mark bolts or at least group them. Also, I recommend having someone there to help you even if they arent mechanically inclined. The AC, distributor, and intake are all held on by bolts that are easily located. The distributor is just one bolt, the intake has 12 bolts holding it but you will probably want to loosen the valve covers incase the intake needs prying, and I have never removed an AC pump from an e-bod but I would guess there is around 3 bolts and you will have to take the belts off first (which I would cut off if they look old or dryrotted). Other than that, if you get stuck on something Im sure I or many others on this forum can guide you through it.
70 Challenger R/T SE - The never-ending project........

Offline mrbill426

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Re: Tearing Down...
« Reply #3 on: October 26, 2006 - 10:10:42 PM »
And.... mine too was (or is) a '72 340 with A/C.  It's pretty straight forward as Killer suggests, but he has a good point in having a buddy around to help you remove, mark, catalog, and store the parts.  If the intake has been on there a while it can be a bit of a bear to "pop" loose.  Just be careful what you pry on to loosen it.  make sure ALL the bolts that fasten things down are removd before you try to take them off.  I have a soft (plastic) dead-blow mallet that has come in handy for such teardowns.

There are a lot of bolts on the front cover/water pump.  Try to keep the sub-assemblies together with all thier brackets and bolts, until you can "record" what they are.  Even after you drain the radiator and remoe the hoses there will still be "water" in the engine so don't be surprised if some (quite a bit) drains out later on.  Hava a bag of floor (oil) dry handy to soak up those messes that WILL happen.  ;)

 :working:
MOPAR or NO car!

'72 'Cuda 340, white on white
'72 Sebring; bracket project
'64 Imperial Crown black on black
'66 Imperial Crown; parts car

Offline moper

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Re: Tearing Down...
« Reply #4 on: October 27, 2006 - 11:02:50 AM »
If you hav never done it, here's acouple of things. Put it on an engine stand. They are cheap, so buy one and use it. It's safer, and will make life much easier..lol. I always start at the top. take off carb, fuel line(s), coil & bracket, throttle cable bracket, return spring bracket, hoses, alternator, belts, and pulleys. At this point, I usually take a large pan, and using a punch, either punch a hole in a core plug, or partially remove a core plug so the block drains. When that's done, do the other side of the block. When that's done, do the same with the oil in the pan. Then, pull the valve covers, and then intake. Inspect the ports for oil and soot, or signs of gasket leakage. the dist can be removed at any time before or after the intake. Next, remove the rocker asemblies and pushrods. If you are planning to reuse these, I would suggest keeping them in order. Holes punched in cardboard work good for me to keep them in the right positition. Next, the water pump and fuel pump. Then, using an air gun, or an assistant to hold the crank still, loosen the balancer bolt. (the easiest way to hold it steady is to thread in two flex plate bolts into the crank, and us a pce of steel bar or a pry bar to ally force to the crank at the same time the bolt is loosened. Just pulling hard may result in tipping the stand over, severe foot pain, and broken parts...) Using a balancer remover, pull the balancer, then the timing cover. At this point, I remove the heads. Pull the timing set, then the oil pump drive and the lifters. These should also be kept in order for reuse. Also, they need to be in a box, dont leave them open to the dust and stuff in the air. Next, pull the camshaft out. Now, unbolt the oil pan, lowering it carefully without tipping it. Unbolt the windage tray, oil pump and pickup asembly, and remove. Now you can roll the shortblock over on the stand..It's a lot lighter, and most of the oil came out with the pan and pump...so it doesnt drip as much. (coolant was also already drained) Then eac piston and rod assembly, and the main caps and crank. Keep every bearing with it's respective part. Bearings tell a story just like spark plugs can. You machinist will want to look at them if he's any good. Same thing with rings. Leave them on the respective pistons. Also, you will want to make sure the rods are clearely marked as to which cylinder they were in. Usually, they are stamped at the rod cap parting lines by the previous assembler, but I've had a couple that werent. Good luck..lots of drain pans and rags help too!