Engine/Transmission (1998.5 - 2002) Another #53 Engine Question

[dnorman]

I have a 99, and after 7 years I just got around to checking to see if I have the #53 engine. Well you guessed it, I do. (I know, I know, better late than never. )



Other than the dreaded dowel pin problem, Are there any other issues I should be concerned about with the #53 engine? Thanks guys.

 

[FourBarR]

the dowel is not necessarly part of the 53 block . the main problem is the cracking . it occurs on the right hand side between 4&5 cylinders down low just above where the oil pan connects to the block. if you have a standard it will be easier to see. on the auto the trans oil cooler will hide the area. lots of info on this site on this subject. hope this helps. I have a 53 block with 396,000kms. still all ok.

 

[dnorman]

thanks FourBarR for the info. now I guess I have something else to worry about.

 

[DavidC]

When mine cracked it was between 5 and 6 above the freeze plugs. If you start smelling hot antifreeze with no obvious signs take a look on the passenger side of the block.



Dave

 

[dnorman]

Thanks DavidC

what is the main reason for the cracking problem in the #53 block, and what makes the 56 better.

 

[litespeed]

I cant remember where I found this. But there is a lot of info. on this subject...



Check out this link. Some pretty good info... .



http://www.stamey.info/Truck/Cummins53BlockFAQ.htm#NewInformation



AJ

 

[obert]

I read here or in the tdr mag that there is a sharp edge in that part of the block that should have had a radius on it. ONE of the casting plants (there were 2?) had the bad cast, and not all of the bad casts will crack. just a lil' rusty thought.



Ive got 160k on a 53, and knock on wood, no prolems.

 

[DavidC]

Thanks DavidC

what is the main reason for the cracking problem in the #53 block, and what makes the 56 better.

The 53 block is known as a porous defect, others know it as a thin casting that cannot tolerate the vibration waves that a diesel generates. The 56 block is a thicker casting. The 53 block reminds me of when GM tried to make a universal diesel using a gas 350 block.



Dave