Parts back from MS
Thread Starter
Tech Contributor
Joined: Aug 1999
Posts: 15,156
Likes: 3,965
From: Connecticut, USA
Parts back from MS
I looked over the parts I got back the other day,here's a picture of a reconditioned rod/new piston what do you think?
Looks a little off center to me!
Looks a little off center to me!
Le Mans Master
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
They may have skewed them intentionally to coincide with the thrust side of each piston... do your pistons have notches in the top to indicatate "forward"? If so, see if their marker lines, the notches, and the thrust side of each piston/rod combo are orchestrated. If the numbers are stamped or engraved on each rod cap, the numbers should also face down/out so they can be read without a mirror.
Out of habit, I always press them on center.
Doing a set this week.
Out of habit, I always press them on center.
Doing a set this week.
Le Mans Master
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Originally Posted by Twin_Turbo
Wait a minute, is it the photo or does it seem like the small end is crooked on the pin as in the bore isn't dead perpendicular to the rod centerline or the pin bore in the piston is off?
The pin bosses are (look to be) tapered.... I think it's an optical illusion.
Burning Brakes
Joined: Feb 2005
Posts: 894
Likes: 91
Piston/Pin Combo
The pin appears slightly off-center. However it will have no effect on performance whatsover. They had the stop on the rod-heater in the wrong location. If you try to repair that now, it'll turn into a bigger operation. It'll be just fine. Thanks, Gary in N.Y.
Thread Starter
Tech Contributor
Joined: Aug 1999
Posts: 15,156
Likes: 3,965
From: Connecticut, USA
Well this is the only one of the 8 that's off.The rod is not in the center of the pin. Interesting about not being able to easily center it? Would you guys leave it alone or have them try and correct it?
Thanks,
Gary
Thanks,
Gary
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Does the rod/pin slide in the piston bore or not? It should slide so it being a little off is not a problem, what kind of piston is it (4 valve relief, marked for position...)??? You could install it so that the piston is installed w/ the rod on the cracnk throw to make sure the pin is spaced more evenly between the 2 sides.
Thread Starter
Tech Contributor
Joined: Aug 1999
Posts: 15,156
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From: Connecticut, USA
Yes the piston slides fine, it's a 4 relief flat top and the black mark is the forward end. I called my guy and he said it should be fine but to bring it back for a look.
Now the next thing I found was a chunk of cast iron on the ground! It's a machined corner wiht 1/2 a tapped hole. It looks like a 5/16-18 thread which I don't think came off my block, I hope not anyway! Maybe it was in the block after it was done and sitting in the shop??
Thanks for the help,
Gary
Now the next thing I found was a chunk of cast iron on the ground! It's a machined corner wiht 1/2 a tapped hole. It looks like a 5/16-18 thread which I don't think came off my block, I hope not anyway! Maybe it was in the block after it was done and sitting in the shop??
Thanks for the help,
Gary
Melting Slicks
Joined: Jan 2004
Posts: 2,672
Likes: 1
From: New Cumberland PA
Originally Posted by gtr1999
Yes the piston slides fine, it's a 4 relief flat top and the black mark is the forward end. I called my guy and he said it should be fine but to bring it back for a look.
Now the next thing I found was a chunk of cast iron on the ground! It's a machined corner wiht 1/2 a tapped hole. It looks like a 5/16-18 thread which I don't think came off my block, I hope not anyway! Maybe it was in the block after it was done and sitting in the shop??
Thanks for the help,
Gary
Now the next thing I found was a chunk of cast iron on the ground! It's a machined corner wiht 1/2 a tapped hole. It looks like a 5/16-18 thread which I don't think came off my block, I hope not anyway! Maybe it was in the block after it was done and sitting in the shop??
Thanks for the help,
Gary
