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Engine Specific Info and Questions => IDI Engine => Topic started by: anarchyx34 on July 21, 2006, 09:35:57 pm

Title: Scratch marks on rod-bearing caps, sign of a rebuild?
Post by: anarchyx34 on July 21, 2006, 09:35:57 pm

I just had the pan off of my 1.6td and I noticed scratch marks on the rod bearing caps indicating which cap goes where. They look pretty crude and I'm wondering if this means someone probably rebuilt this motor before. I was able to see the cyl wall on one of the cyl's and it looks smooth as glass. I figured if VW wanted identification marks on the caps they would be printed or something just not scratched in. Here are the pics to show what I'm talking about.

(http://www.photodump.com/direct/anarchyx34/dslrodcap1.jpg)
(http://www.photodump.com/direct/anarchyx34/dslrodcap2.jpg)

Does everyone's motor have these?

Title: Scratch marks on rod-bearing caps, sign of a rebuild?
Post by: 935racer on July 21, 2006, 10:14:08 pm

No, this is not factory, apparently your engine was rebuilt by a cave man :lol:
Some people use stamps/punches to # the caps but this is a poor idea, especially if the cap is removed from the rod, you can throw the cap out of round. Use fab/paint markers instead.

Title: Scratch marks on rod-bearing caps, sign of a rebuild?
Post by: hillfolk'r on July 23, 2006, 12:26:22 am

i cant remember if vw bearings have them but most bearings have a date code on them
then it may have somethin like  1-79
first month,79,year
i cant remember if vw does this
maybe someone dropped the caps to inspect? yea paint is nicer
look closely at the bolt heads for the mains+ stuff,with some detective work,ya may see nicks on the bolt heads from the socket contacting them

Title: Scratch marks on rod-bearing caps, sign of a rebuild?
Post by: Master ACiD on July 23, 2006, 06:30:57 am

hey thats exactly the marks i use when rebuilding a motor. maybe you got a motor that i once owned?