418 build update pics and broke a ring
#1
Thread Starter
Tin Foil Hat Wearin' Fool
iTrader: (36)
Joined: Oct 2004
Posts: 23,204
Likes: 4
From: Austin, TX
Well I went over to mjhowards house and started building my motor finally. I learned alot of stuff from him and am glad its finally getting under way. I was filing the rings to the correct size and I went to file the 2nd compression ring and squeezed the ring on the ring filer and it just snapped
So my buld hits yet another road block. This crap is getting really old really quick. Got the crank and 7 pistons in tonight
Here are the pics for what it is worth



I didnt take too many pics cause I got pretty pissed after I broke the ring so.....
Here are some pics of the ring that broke it must have been bad from the factory better now then later I guess.



Ill get some more when it is more complete and during the install hopefully nothing else happens to slow down the process even more. I am so ready to drive my truck now. Its been down for THREE months, I miss it
So my buld hits yet another road block. This crap is getting really old really quick. Got the crank and 7 pistons in tonight
Here are the pics for what it is worth



I didnt take too many pics cause I got pretty pissed after I broke the ring so.....
Here are some pics of the ring that broke it must have been bad from the factory better now then later I guess.



Ill get some more when it is more complete and during the install hopefully nothing else happens to slow down the process even more. I am so ready to drive my truck now. Its been down for THREE months, I miss it
#5
That cluttered shop looks familiar.
top ring .020-.022
second ring .022-.024
third ring ~.015
I've broken some before spreading them but never compressing. Bad ring and it is xmas holiday. May be forever before he gets another ring.
4.030 bore 4.100 stroke. No clearancing, yet....
top ring .020-.022
second ring .022-.024
third ring ~.015
I've broken some before spreading them but never compressing. Bad ring and it is xmas holiday. May be forever before he gets another ring.

4.030 bore 4.100 stroke. No clearancing, yet....
#6
Originally Posted by mjhoward
top ring .020-.022
second ring .022-.024
third ring ~.015
I've broken some before spreading them but never compressing. Bad ring and it is xmas holiday. May be forever before he gets another ring.
second ring .022-.024
third ring ~.015
I've broken some before spreading them but never compressing. Bad ring and it is xmas holiday. May be forever before he gets another ring.

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#8
Originally Posted by Injected1
you helping him with the build, or is that just build knowledge? (excuse the stupid question, I have not yet built a motor)
#9
Originally Posted by mjhoward
Yeah. I'm helping. You gap acording to application. A NA motor will have the tightest gap and a FI or heavy nitrous motor will have the widest. This is due to extra heat in the cyl that causes expansion and you don't ever want the ring ends to but because this would be detrimental to the cyl if there was no room to expand.
#10
4.030 x 4.100 no clearancing found needed yet. Haven't checked to see if it will clear the cam though. It is supposed to clear but we will see. His is a street/moderate nitrous application.


