07-27-2006
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#1
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Reynolds number user
Join Date: Oct 2003
Location: grove/tempe
Posts: 3,553
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basic engine assembly questions
Is plastigage still "the" way to get a fairly accurate oil clearance? Or can i just borrow a digital caliper and do some arithmatic?
Rods: when torquing the caps, do most of you go by the torque rating, bolt stretch, or both?
Front case: Brand new oem; should i take the oil pump cover off and clearance the gears or are they usually within spec? I've also heard of people deburring the gear edges, whats the reasoning behind that?
i was also wondering if anyone had a decent set of machinist guages so i can check my block now that i finally got it back. i just want to make sure the bores aren't tapered or anything else drastic.
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07 Ducati Monster S4R
00 honda elite 50 (64 mph braH!)
05 malaguti F15
04 E55 AMG
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07-27-2006
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#2
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Unsure resident asshole
Join Date: Mar 2005
Location: MN
Drives: '92 Eagle TalonTSI w/many mods
Posts: 3,696
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Re: basic engine assembly questions
plastigage works just fine. I measure the crank and rods with a digital caliper tool though. It works better, for more accurate info, i think. I still tighten everything down with plastigage though, just to double-check for tolerances.
-A. Swift
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Black 1GB Mafia #1
744AWHP/526TQ-Shootout mode
639.6AWHP/452TQ-DB's dyno
I wanna go fast.
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07-27-2006
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#3
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Unsure resident asshole
Join Date: Mar 2005
Location: MN
Drives: '92 Eagle TalonTSI w/many mods
Posts: 3,696
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Re: basic engine assembly questions
as or the rods, i toque them all down to like half of the way, then go back, and go the rest of the way, similar to the way you torque a head down. I go by the specs, not by what the part can take.
-A. Swift
__________________
Black 1GB Mafia #1
744AWHP/526TQ-Shootout mode
639.6AWHP/452TQ-DB's dyno
I wanna go fast.
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07-27-2006
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#4
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Shit Rocket Pilot
Join Date: Oct 2003
Location: Shoreview, MN
Drives: 2003 Evolution VIII
Posts: 7,752
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Re: basic engine assembly questions
I've never heard of doing anything with the oil pump. I have a brand new case and gears in my hands and they don't look like I should have to do anything with them. It's up to you obviously. I'm guessing they beburr the gear edges do they don't scratch the casing which would be putting aluminum filings into the oil.
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"If everything seems under control, you're just not going fast enough." -Mario Andretti
03 Mitsubishi Lancer Evolution VIII
Quote:
Originally Posted by Tachyon
Every minute you spend in your Evo, not in boost, is a minute of your life you'll never get back.
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07-27-2006
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#5
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Is funding Exxon.
Join Date: Oct 2003
Location: Ham Lake
Drives: like a bat outta hell!
Posts: 7,983
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Re: basic engine assembly questions
The digital caliper won't tell you crap, use plastigage in 3 different spots, then average the clearance. You need a bore guage if you want to do it by measurements, but most people won't have one.
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Is burning corn and stayin' warm!
My motorcycle is stock and reliable, my Talon is neither!
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07-27-2006
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#6
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back in the saddle again
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Re: basic engine assembly questions
Bore gauge/mic's and rod bolt stretch method.
But we have all those tools here.
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My street car runs low 11's and my race car's personal best is a mid 11....
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07-27-2006
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#7
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Reynolds number user
Join Date: Oct 2003
Location: grove/tempe
Posts: 3,553
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Re: basic engine assembly questions
can i bring my block over to your shop swanny?
i'll even buy one of those turned down balance shafts!
__________________
07 Ducati Monster S4R
00 honda elite 50 (64 mph braH!)
05 malaguti F15
04 E55 AMG
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07-30-2006
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#8
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Join Date: Sep 2005
Location: lakeville, MN
Posts: 119
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Re: basic engine assembly questions
+1 on not using a mic, mine reads a bit different between ID and OD and it confused the hell outta me one day
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07-31-2006
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#9
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back in the saddle again
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Re: basic engine assembly questions
Quote:
Originally Posted by GVR-4579
+1 on not using a mic, mine reads a bit different between ID and OD and it confused the hell outta me one day
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Buy a good mic or learn how to read it.
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My street car runs low 11's and my race car's personal best is a mid 11....
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08-01-2006
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#10
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Join Date: Sep 2005
Location: lakeville, MN
Posts: 119
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Re: basic engine assembly questions
it is good, and its digital but it read off like .002 between ID and OD so it was throwing off the oil clearances
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08-01-2006
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#11
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Is funding Exxon.
Join Date: Oct 2003
Location: Ham Lake
Drives: like a bat outta hell!
Posts: 7,983
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Re: basic engine assembly questions
Quote:
Originally Posted by GVR-4579
+1 on not using a mic, mine reads a bit different between ID and OD and it confused the hell outta me one day
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A mic can't read ID, you must be talking about a caliper. The ID should be read by a bore guage.
__________________
Is burning corn and stayin' warm!
My motorcycle is stock and reliable, my Talon is neither!
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08-02-2006
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#12
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Join Date: Sep 2005
Location: lakeville, MN
Posts: 119
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Re: basic engine assembly questions
Opps yea i always get those messed up, yea thats what i did, got out the old starretts and went at it and found that everything was ok. wow feel kinda dumb about messing those up again but i get them confused all the time. LOL
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08-02-2006
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#13
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Reynolds number user
Join Date: Oct 2003
Location: grove/tempe
Posts: 3,553
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Re: basic engine assembly questions
thanks josh and swanny for checking my cyl diameters for me. i guess the ramsey Carquest does pretty good machine work ![Smile](http://www.dsmstyle.com/forums/images/smilies/smile.gif)
__________________
07 Ducati Monster S4R
00 honda elite 50 (64 mph braH!)
05 malaguti F15
04 E55 AMG
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