3406E and C15 cracked liner flange and blown head gaskets explained.
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- Опубликовано: 22 фев 2013
- Are you facing head gasket or liner flange failures in your Caterpillar 3406 or C15 engine? Learn the common causes and how to prevent these issues.
What You Will Learn:
- Common causes of a blown head gasket and cracked liner flange failures.
- The importance of proper liner installation, machining, and maintenance
- How to measure and ensure block surface and liner protrusion clearances are correct
Key Points:
- Head gasket failures often come from improper surface conditions and installation errors.
- Liner flange integrity is crucial for engine performance.
- Regular inspection and correct machining are essential to avoid costly repairs.
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ALWAYS ALWAYS ALWAYS send the block to the machine shop. It's worth the extra money than doing the job over again of which CAT will more than likely pay for some of the parts and you are stuck with the huge balance and labour. Oh yeah, down time too. Inframe are useless!
Awesome segment!!! Thank you for putting this out there for guys to see.
Bingo! In-frames are crappy.
That's was very informational thanks
Great video thank you for sharing Australia
Lot help full info, thank you.
Good info.
I do 3-4 C15/3406 overhauls per month at my shop. These are great engines but the most prevalent reason for tear down is burned head gskt/fire rings, usually at around 600k. I have this conversation with every customer facing this repair. It is foolish and improper to just put a new head gasket on these engines, you must remove the liners. The combustion gases from a burned head gasket go right under the liner flange into the water jacket, thus causing the cooling system to be pressurized push coolant out of the overflow. This erodes the block even further. I have found that virgin blocks usually produce about .004 liner protrusion. When I cut counter bores for .032 shims, I cut them to .030 to give me the maximum .006 liner protrusion.
+tklee7 I never aimed for .006 which is max but you run the risk of breaking liner flange. Also didn't stop head gasket issue and may let it leak oil from shim gasket under spacer plate. One's I have seen that were cut to the max liner height also let shim gasket vibrate per say and eat into the block.
Great info I think is my problem. Had a rebuild 2015 getting coolant coming out of my overflow tube! ??? Whay do you Think??
@@chiefkeefatl8236 my 2003 is the same. Found the head was pressurizing, leading to coolant loss and incorrect temperature readings. Still waiting for the verdict on the second head failure. There is an issue with heads, but a liner may have failed.
A question about
a cat 3406E with the following problem, I'm passing oil for water and
you see it has compretion on the grater, and oil on the diesel too
It's design issue long before 3406 ever came out it was used on engines before it like 1673, 1674, 1693. Doesn't help that liner sits on top of the block, then shim gasket, spacer plate, head gasket then cylinder head. There's lot of surfaces that move around and that liner vibrates aka fretting that make liner wear into the block that what causes head gasket to blow out. Don't see mid stop block engine eat head gaskets like 3406 series does. Cummins learned this long time ago Cat didn't learn from C10, C12 they were mid stop liners. C12 did eat head gaskets but fix was retorq head bolts twice. I'm CAT certified and work at Peterbilt dealership
well said. I'm a cat engine specialist myself and I agree completely but I'm not complaining lol. these failures keep me busy :)
As a part time engineer like most people I wouldn't have the spacer plate design, its like the 2 piece piston, just seems like a poor engineering design, its called KISS, means keep it simple stupid.
Great advice on these engines thank you
Great inf. Thanks a lot
great video thank you for showing
Glad you enjoyed!! Stay tuned, we'll be releasing more videos in the future!