Click Here -> Please Consider Making a PayPal Contribution to the FordSix Forum!
2019 Contributors:
NJwpod, 1strodeo, mightynorseman, maxtrux, 6d7coupe, broncr, Phase3, 68Flareside240, bmbm40, mustang6, WorldChampGramp, justintendo, BigBlue94, ags290, motorsickle1130, Rooster, ousooner919, ethanperry, rzcrisis, DoctorC, jamyers, Motorboy, fastpat, Silverback280, chad, drag-200stang, THE FRENCHTOWN FLYER, Jimmys61falcon, rjonah, Sooshi, Robert92867, Invectivus


PLEASE TEST ON http://dev.fordsix.com

<<<***PLEASE READ*** New Site Update >>>

200 Deck Clearance

Moderator: Mod Squad

sarnett346
Registered User
Posts: 25
Joined: Tue Nov 15, 2016 4:50 pm

200 Deck Clearance

Post #1 by sarnett346 » Mon Mar 30, 2020 12:42 am

Hello all,

I’m tearing down my inline 200 and I’ve come across something a bit interesting... I measured the deck clearance and came up with .040

As far as I know, stock should be .019, I’m stumped. Pistons are NP275.

Can anyone explain how this may be?

Thanks,
Sean

User avatar
chad
Registered User
Posts: 5273
Joined: Sat Oct 24, 2009 9:51 am
Location: Lawrence Swamp, S. Amherst, MA

measuring the i6 Deck accuratly

Post #2 by chad » Mon Mar 30, 2020 12:50 am

"...explain how this may be? ..."
incorrect method of determining? IDK...
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), '69 250ci, NV 3550 & DSII, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

User avatar
Econoline
Registered User
Posts: 1443
Joined: Tue Nov 12, 2013 8:37 pm
Location: Anacortes, WA

Re: 200 Deck Clearance

Post #3 by Econoline » Mon Mar 30, 2020 12:54 am

Aftermarket pistons have lower pin height than stock. They do that to compensate for decking i suppose.
It ain't gonna fix itself

sarnett346
Registered User
Posts: 25
Joined: Tue Nov 15, 2016 4:50 pm

Re: 200 Deck Clearance

Post #4 by sarnett346 » Mon Mar 30, 2020 9:43 am

Econoline,

I figured that’s what it was, just couldn’t find any measurements online to back it up.

pmuller9
Registered User
Posts: 3959
Joined: Tue Aug 06, 2013 12:33 am
Location: Columbus, Indiana

Re: 200 Deck Clearance

Post #5 by pmuller9 » Mon Mar 30, 2020 10:47 am

The replacement pistons usually have a CD of 1.500" and the stock block if it hasn't been decked can be a few thousands higher than spec.

CZLN6
VIP Member
Posts: 3354
Joined: Fri Nov 15, 2002 11:07 am
Location: Idaho Falls, Id
Contact:

Re: 200 Deck Clearance

Post #6 by CZLN6 » Mon Mar 30, 2020 1:09 pm

Howdy Sean:

Did you measure the deck height on this engine before you tore down? Always a good Idea. Stock 200 blocks deck height typically measure around .025". Replacement pistons are down .005" to compensate for machining to true the block.

Adios, David
co-author of the Falcon Performance Handbook
http://www.falcon6handbook.com/

Who is online

Users browsing this forum: No registered users and 16 guests