Hired a kid fresh out of diesel mechanic school to do an in frame on a CAT 3406. Didn't realize until after we got the cylinder head in place that he didn't have a sled gauge and only checked the projections by finger. Before I crank the motor up for the first time what is the worst that can happen if the projections are off? When the liners were installed they were pushed down until they wouldn't go down anymore. I'm not an expert of diesel mechanics, I just make the wheels turn. Thanks for the help.
Question on CAT 3406 liner projection
Discussion in 'Trucks [ Eighteen Wheelers ]' started by Bigkenny, Jun 1, 2012.
Page 1 of 2
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
-
It would be worth the money to me to tear it back down and check for the peice of mind and also to possibly save Money later from a blown head gasket,cracked liner, or cracked head you will be out some time and money but it would be worth it.if I were him i would eat the labor cost we learn from our mistakes and you should never assume that its write in the long run you can end up with a bad reputation and that my freind is bad for business
-
-
The head is a remanned unit with no run time on it so I assume everything was done correct atleast on that part. The truck had well over 1 million miles before the tear down. The reason for the tear down was excessive blowby, turns out several pistons were cracked. Only thing that didn't get touched was the camm. Should I still be worried? -
Just run it
If the protruision was to low it will blow a headgasket if its too high it will crack a liner.
By the sounds of it you need to be working it just keep a eye on the coolant level. -
what would you rather have low money or no money? Liner protrusion is a big deal a blown head gasket is a big deal and a cracked head is a big deal,why would you let a kid fresh out of school do an overhaul anyway? I have seen a lot of so called diesel mechanics rebuild the 3406B cats only to run nine or ten thousand miles and bang a big hole in the side of the block. My guess was the rods were not checked or resized. ( on the ones that flew apart) The wife is just gonna have to deal with this because it is possible you are gonna end up with no money and an engine scattered all over the road if you do not go back into it. By reading your post it sounded to me like you were trying to be cute or funny but you may end up crying.So go do the right thing as Dr Laura would say.
-
Scrapper Thanks this.
-
Liner height will cause blown head gasket or cracked liner an it won't be long if its wrong.
-
superhauler is right on...this site is great and the guys are great and have more knowledge in their pinky nail about these trucks than I ever will. Listen to them. Most have been there and done that and now are on here telling the tale. I'm very new to this business and wouldn't be anywhere close to where I am now without it!
As already stated...it will be WAY cheaper to go in and check and even adjust correctly now than it will be to fix broken parts down the road. You really aren't going to be out alot more money other than time by doing this. You are not replacing any parts YET. I have and I know many more have done jobs just to remember or find out when they are done they forgot or have an inkling in their minds that they did something wrong. Then took the rest of the day or after work into the night to tear it back down and fix it right so the job will be correct. Thats where the pride in your work comes in. The youngin should have enough pride in his work to go back in and help you get it right. As truckmech already said...he'll have a short lived mechanic life if his jobs are like that. Own up to the mistake and fix it right. For your sake he should!
Not worth much but my $.02Oxbow and truckmechanic Thank this. -
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
Page 1 of 2