Rebuilding engine. New rings, honing question.
Rebuilding engine. New rings, honing question. Hello.
I just bought the following for my LQ4, stock bore, stock pistons.
Mahle Motorsport 4.000" + .005" plasma moly ring set 1.5/1.5/3.0
What exactly will I need to do to make sure everything fits perfectly.
When I ordered them from Speed Inc. The guy said that a hone is necessary, I know a hone is needed for the new rings to seat. But Is one needed for the new rings to fit.
Also whats the best way to check my ring gap? This is what i have found for gap clearance, 0.02-0.03 in.
Thanks in advance.
My new rings will be in later today, so I need some quick responses.
Thanks again.
Tyler
I just bought the following for my LQ4, stock bore, stock pistons.
Mahle Motorsport 4.000" + .005" plasma moly ring set 1.5/1.5/3.0
What exactly will I need to do to make sure everything fits perfectly.
When I ordered them from Speed Inc. The guy said that a hone is necessary, I know a hone is needed for the new rings to seat. But Is one needed for the new rings to fit.
Also whats the best way to check my ring gap? This is what i have found for gap clearance, 0.02-0.03 in.
Thanks in advance.
My new rings will be in later today, so I need some quick responses.
Thanks again.
Tyler
Why did you buy +.005" rings? Even if you honed enough for them to fit, the stock piston skirt clearance would be too great & would cause piston slap @ the very least. Send the rings back for a stock bore set, hone lightly for ring break in & be done w/ it. If you want the +.005" rings, get +.005" pistons, if they exist, so that the assembly tolerances are correct.
Why did you buy +.005" rings? Even if you honed enough for them to fit, the stock piston skirt clearance would be too great & would cause piston slap @ the very least. Send the rings back for a stock bore set, hone lightly for ring break in & be done w/ it. If you want the +.005" rings, get +.005" pistons, if they exist, so that the assembly tolerances are correct.
Well these are the only size for my bore, all the others are larger.
MAH3903MS Mahle Motorsport (for stock LS1 pistons) plasma moly 3.898"+ .005" $139.99 buy
MAH3910MS Mahle Motorsport 3.905" + .005 plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH3915MS Mahle Motorsport 3.910" + .005 plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4005MS Mahle Motorsport 4.000" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4035MS Mahle Motorsport 4.030" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4043MS Mahle Motorsport 4.040" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4065MS Mahle Motorsport 4.060" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4075MS Mahle Motorsport 4.070" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4085MS Mahle Motorsport 4.080" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4130MS Mahle Motorsport 4.125" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4135MS Mahle Motorsport 4.130" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4140MS Mahle Motorsport 4.135" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4160MS Mahle Motorsport 4.155" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
And the last guy posted that these will work....
^^^
It's all good, he posted that because they are file fit; meaning that they will work after filing to fit. I agree, if file fit, then they will work once fitted. Didn't think about them being file fit as it was not listed in your original post.
It's all good, he posted that because they are file fit; meaning that they will work after filing to fit. I agree, if file fit, then they will work once fitted. Didn't think about them being file fit as it was not listed in your original post.
Yea, this is my first big project. So I have allot of questions.
I have about $8500 in my project now, with another $2500 to spend.
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TECH Senior Member
Joined: Feb 2009
Posts: 5,445
Likes: 4
if you are file fitting your own rings use the piston upside down to place the rings square in the cylinder bore.make sure to debur the ring ends good so not to leave scratches on the cylinder wall.do you have the proper files and feeler gauges?you have removed the rods from the crank ,you need to resize the big end .you mite need to balance it.
