MBWorld.org Forums
0 2020/11/13 21:42:31
0 2020/11/13 21:42:39
0 2020/11/13 21:42:45
0 2020/12/24 14:29:56
0 2020/12/24 14:30:05
Before exhaust porting, notice the two large and useless “bumps” on each side below the exhaust valve seat... not too mention directly under each valve seat are some pronounced ridges from the factory casting
Before exhaust porting, notice the two large and useless “bumps” on each side below the exhaust valve seat... not too mention directly under each valve seat are some pronounced ridges from the factory casting
0 2021/02/06 16:05:39
Getting a lot better, still some work to do...
Getting a lot better, still some work to do...
0 2021/02/06 16:05:46
Porting the turbine housings as well... there is a lot of material that can be taken off of these turbine housings even just to gasket match the port
Porting the turbine housings as well... there is a lot of material that can be taken off of these turbine housings even just to gasket match the port
0 2021/02/06 16:05:53
Another angle of the turbine housing porting in progress
Another angle of the turbine housing porting in progress
0 2021/02/06 16:06:02
Finally got both turbos in the mail...
Finally got both turbos in the mail...
0 2021/02/06 16:06:09
Here’s a mock-up of the intake manifold idea... more to come soon
Here’s a mock-up of the intake manifold idea... more to come soon
0 2021/02/06 16:06:21
Exhaust gasket versus exhaust port before porting
Exhaust gasket versus exhaust port before porting
0 2021/02/07 16:54:52
Exhaust gasket versus ported exhaust port nearing completion
Exhaust gasket versus ported exhaust port nearing completion
0 2021/02/07 16:57:42
0 2021/03/08 08:50:02
0 2021/03/22 16:24:00
0 2021/04/29 14:50:48
0 2021/04/30 15:18:29
0 2021/05/02 06:43:58
0 2021/05/02 06:44:07
0 2021/05/02 06:44:11
0 2021/05/02 06:44:16
0 2021/05/02 06:44:23
0 2021/05/02 06:44:30
0 2021/05/02 06:49:15
0 2021/05/02 06:49:22
Before and after example of polishing the crankshaft journals, on the left is wet-sanded up to 1500 grit, with wd40, on the right is after being pulled from the engine and cleaned with gasoline and then citrus degreaser
Before and after example of polishing the crankshaft journals, on the left is wet-sanded up to 1500 grit, with wd40, on the right is after being pulled from the engine and cleaned with gasoline and then citrus degreaser
0 2021/06/25 23:22:58
Another angle/example of before and after polishing
Another angle/example of before and after polishing
0 2021/06/25 23:23:04
Here is a photo meant to depict a before and after example of lapping the aluminum engine block cylinder walls. The aluminum actually has 30% silicon content and a process using felt pads on a hone coated with alusil honing paste(the cylinder walls also get coated with the paste and regular engine oil in the process) brings forth the silicon for the piston rings to slide on. The silicon is much more durable than the aluminum alone which is part of the reason m113’s typically last a long time
Here is a photo meant to depict a before and after example of lapping the aluminum engine block cylinder walls. The aluminum actually has 30% silicon content and a process using felt pads on a hone coated with alusil honing paste(the cylinder walls also get coated with the paste and regular engine oil in the process) brings forth the silicon for the piston rings to slide on. The silicon is much more durable than the aluminum alone which is part of the reason m113’s typically last a long time
0 2021/06/25 23:23:09
0 2021/07/04 16:02:06
Crank bearings gauged and installed with assembly lube, the assembly lube smells like mint interestingly enough, im not sure what the purpose of that is. All crank bearing caps torqued to spec with new hardware. I used some loctite on the side (bolts 5 and 6) bearing cap bolts.
Crank bearings gauged and installed with assembly lube, the assembly lube smells like mint interestingly enough, im not sure what the purpose of that is. All crank bearing caps torqued to spec with new hardware. I used some loctite on the side (bolts 5 and 6) bearing cap bolts.
0 2021/07/04 16:06:00
Another view of the crankshaft installation
Another view of the crankshaft installation
0 2021/07/04 16:13:03
Crankshaft top side bearings installed and coated with assembly lube. Went with the m113k specific crank bearings to utilize the coating they come with compared to regular m113 bearings
Crankshaft top side bearings installed and coated with assembly lube. Went with the m113k specific crank bearings to utilize the coating they come with compared to regular m113 bearings
0 2021/07/04 16:14:31
AMG crankshaft after polishing
AMG crankshaft after polishing
0 2021/07/04 16:15:46
The bearing bridge and rockers from the m113k junkyard motor are seen here with some clk430 bridges and rockers from a $100 engine I picked up. Luckily the rockers and shafts are interchangeable, the bearing bridges from the 55k engine are able to be saved along with the cylinder heads. However the rockers, shafts and lifters are shot
The bearing bridge and rockers from the m113k junkyard motor are seen here with some clk430 bridges and rockers from a $100 engine I picked up. Luckily the rockers and shafts are interchangeable, the bearing bridges from the 55k engine are able to be saved along with the cylinder heads. However the rockers, shafts and lifters are shot
0 2021/07/06 11:54:22
An example of the blueing of the bearing bridge shafts after the 55k engine was in a fire, this shaft was actually really difficult to retrieve from the bearing bridge
An example of the blueing of the bearing bridge shafts after the 55k engine was in a fire, this shaft was actually really difficult to retrieve from the bearing bridge
0 2021/07/06 11:54:29
Through this window in the block you can see exactly what I’m talking about. The counterweights of the crank come too close to the pistons, the piston is the object on the bottom right of the window
Through this window in the block you can see exactly what I’m talking about. The counterweights of the crank come too close to the pistons, the piston is the object on the bottom right of the window
0 2021/07/08 05:39:51
Another angle of how close the counterweight comes to the crank
Another angle of how close the counterweight comes to the crank
0 2021/07/08 05:40:10
Here is an overhead view of what I am talking about, notice the crankshaft counterweights come very close to the pistons on the stroked 55 AMG engines
Here is an overhead view of what I am talking about, notice the crankshaft counterweights come very close to the pistons on the stroked 55 AMG engines
0 2021/07/08 06:02:48
Thankfully the 55k crank shows very nice oil clearances for a high horsepower rebuild
Thankfully the 55k crank shows very nice oil clearances for a high horsepower rebuild
0 2021/07/08 06:02:53
Here is the 55k crank we will be using for this build now instead of the 55 n/a crank that originally came in this engine block. Ironically my 55 n/a crank will end up on a 55k engine now
Here is the 55k crank we will be using for this build now instead of the 55 n/a crank that originally came in this engine block. Ironically my 55 n/a crank will end up on a 55k engine now
0 2021/07/08 06:03:00