Proper engine tear-down: how-to, best practice, etc?
#2407776
11/23/17 11:25 AM
11/23/17 11:25 AM
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Joined: Jan 2003
Posts: 1,754 Windsor, ON, Canada
Diplomat360
OP
top fuel
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OP
top fuel
Joined: Jan 2003
Posts: 1,754
Windsor, ON, Canada
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Within the next few weeks I will be pulling the 360 motor out and getting ready for a stroker W2 build.
I am hoping to learn a few things by taking my time to do a proper tear-down. What I mean by this is: watch for tell-tale signs of oil starvation (bearings, piston scuffing, etc?), signs of detonation, ring wear, as well as regular engine wear.
What I am curious, given that my previous tear-downs have always been of the "get it all apart ASAP, all amateur back-yard stuff", what are the recommended things to do, is there a specific disassembly order so I can measure and/or diagnose things?
This engine has only racked-up a mere 5k miles since a completely new re-built. But, since it's a weekend only driver, some 6 seasons have now gone by, the factory iron heads are somewhat tired (previously had exhaust cross-over coolant leak that has been epoxied) and well, I wanted to really try the W2 stroker build.
Would love to hear your recommendations on the "best-practice" type approach, or what you have found to work well. By all means, if there are on-line references I should review toss 'em at me please.
Thanks!
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Re: Proper engine tear-down: how-to, best practice, etc?
[Re: Diplomat360]
#2408100
11/24/17 12:49 AM
11/24/17 12:49 AM
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Joined: Dec 2005
Posts: 11,530 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,530
Fulton County, PA
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Depends on what is going to be replaced. If you are going to do a stroker with, I assume, a new reciprocating assembly and new heads, what comes out of it is not a whole lot of use if the block is the only thing to be reused. I would at least look at the bearings for wear and the caps for fretting caused by walking. And for cracks.
Anything that is going to be reused should be cleaned first. Sloppy, oily parts are not easy to check. Then inspect; visually for any signs of wear, damage, cracks or oil starvation, and measure for any wear. Rocker gear, lifters and cam, any wear surface, etc. Disassemble, inspect and measure the oil pump clearances. Die penetrant or magnaflux can be used to check for cracks.
Intended use - RPM, horsepower level, etc., will determine what modifications or work may be wise to do, even if there appeared to be no problems in the last combination.
If the results don't match the theory, change the theory.
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Re: Proper engine tear-down: how-to, best practice, etc?
[Re: Diplomat360]
#2409109
11/26/17 02:11 PM
11/26/17 02:11 PM
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Joined: Jan 2003
Posts: 1,754 Windsor, ON, Canada
Diplomat360
OP
top fuel
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OP
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Joined: Jan 2003
Posts: 1,754
Windsor, ON, Canada
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Thanks for the suggestions guys. This motor has a bunch of quality parts in it, so I'm not inclined to sell it all off, unless I do a short-block only type of a thing as that is mostly stock stuff and pretty generic. Since this stroker build is going into my M-body ride I will have to go TTI headers for the W2 setup and I just don't know how everything else will literally fit. Therefore, my plan is to yank the old motor out, do some basic test-fitting with the "naked" block/heads/exhaust setup. For example, I have a Milodon #30940 oil pan (8qt, deep pan, LOW PROFILE). But I have read on-line that the bottom of the pan flare-out design may be an isse with the K-frame in the F/M/J-body cars. Now if you add the TTI tubes into the mix...well, will it work, or won't it??? Good news is that TTI says the pan and their W2 headers will work ( TTI Header #340W2 1-3/4" W2 STEP HEADERS). So I need the engine bay empty as this stuff is coming together. Anways, OK, I will take a bunch of photos, will update this thread if questions pop up or I'm seeing something unusual.
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Re: Proper engine tear-down: how-to, best practice, etc?
[Re: Diplomat360]
#2409122
11/26/17 02:40 PM
11/26/17 02:40 PM
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Joined: Aug 2011
Posts: 250 Saskatchewan (SK)
79410aspenrt
enthusiast
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enthusiast
Joined: Aug 2011
Posts: 250
Saskatchewan (SK)
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no issues with that oil pan. i did make a small notch in the k frame (passenger side) just for easy install but it wasn't a must do. i had TTI 1-7/8'' headers that fit perfect on my 79 Aspen. i don't know if your engine bay is the same
Last edited by 79410aspenrt; 11/26/17 02:43 PM.
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Re: Proper engine tear-down: how-to, best practice, etc?
[Re: Diplomat360]
#2409297
11/26/17 09:43 PM
11/26/17 09:43 PM
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Joined: Jan 2005
Posts: 4,405 Michigan
MarkZ
Worthy
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Worthy
Joined: Jan 2005
Posts: 4,405
Michigan
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Would another block be of any use to you for your testing? Dad might still have the old one that spun a bearing.
1987 Fifth Avenue - 512/518/D60
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Re: Proper engine tear-down: how-to, best practice, etc?
[Re: Diplomat360]
#2409589
11/27/17 01:46 PM
11/27/17 01:46 PM
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Joined: Jan 2003
Posts: 1,754 Windsor, ON, Canada
Diplomat360
OP
top fuel
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OP
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Joined: Jan 2003
Posts: 1,754
Windsor, ON, Canada
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79410aspenrt: Thanks, that's good to know. I am thinking of doing the 1-5/8" to 1-3/4" tubes, the 1-7/8" maybe just a tad too big for the car's intended use. I think the engine bay is nearly the same in these cars, short of maybe some tiny sheetmetal changes.
MarkM: I have a spare 360 short-block already (but thanks, I appreciate the offer), that is actually the one I want to prep for the W2 build, so I'm good for now, as soon as the current 360 is out I will test-fit the spare 360-block with the pan, no TTI headers at the moment though (boy, that purchase is going to hurt...LOL)
Right now I started my conversation with the machine shop around the W2 head work to get the guides setup for 11/32 stem, etc, etc...
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Re: Proper engine tear-down: how-to, best practice, etc?
[Re: Diplomat360]
#2409615
11/27/17 02:48 PM
11/27/17 02:48 PM
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Joined: Nov 2015
Posts: 875 Missouri
jwb123
super stock
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super stock
Joined: Nov 2015
Posts: 875
Missouri
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when rebuilding an engine, every piece in the engine is evaluated on three things. Can it go back in the engine as it is, does and can it be reconditioned, or does it have to be replaced. To answer those three questions, proper specifications and proper measurements of the components is critical in working on engines. Some of the things I see people miss a lot is ring land to ring clearance, loose or tight ring lands cause a lot of problems. crankshaft warpage, valve guide clearance, deck and head warpage, proper endplay on crank and camshaft, alignment of rockers with valve tips, valve spring pressures and installed heights, proper pushrod length. Piston to valve clearance, and piston to head clearance.
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Re: Proper engine tear-down: how-to, best practice, etc?
[Re: Diplomat360]
#2414488
12/07/17 12:02 AM
12/07/17 12:02 AM
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Joined: Dec 2005
Posts: 259 Scatchamatoon
Saskabusa
enthusiast
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enthusiast
Joined: Dec 2005
Posts: 259
Scatchamatoon
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Thanks for the suggestions guys.
This motor has a bunch of quality parts in it, so I'm not inclined to sell it all off, unless I do a short-block only type of a thing as that is mostly stock stuff and pretty generic. What are these quality parts? If you are replacing the heads, crank, pistons. What out of the original motor are you using?
1974 Roadrunner
1967 Charger
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Re: Proper engine tear-down: how-to, best practice, etc?
[Re: Saskabusa]
#2414542
12/07/17 01:56 AM
12/07/17 01:56 AM
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Joined: Jan 2003
Posts: 1,754 Windsor, ON, Canada
Diplomat360
OP
top fuel
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OP
top fuel
Joined: Jan 2003
Posts: 1,754
Windsor, ON, Canada
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...What are these quality parts?... Seriously...LOL? Not sure about you but I do not have a storage room fool of small block stuff to chose and pick from on-a-whim...I'm talking intake manifolds, rocker arms, valve covers, timing chain covers, etc, etc So yeah, if I want to build another non-W2 SB motor you bet I'm going to use a bunch of this stuff again!
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