Originally Posted By: Silk
I haven't seen a Mitsi engine that dirty for awhile...we need to go back to the '80's to see that much gunge.Mind you,we don't pull them apart that much - valve guide seals means the car is off to the wrecking yard.But pulling rocker covers off gives us a good idea of what they are like - did a rocker cover gasket on a '94 L200 petrol today,just shiny alloy inside.
Maybe using 15/40 is the way to go?
My reasoning behind the dirty engine is the poor quality of engine oils sourced from the UAE. I've kept a record of all the oils I've used in this engine, and the one used the most was Gulf Max 20W-50. This oil used to turn pitch black within 1,000 km of use. Never again.
At the moment I'm running Motorcraft Synthetic Blend 10W-30 for 8,000 km, when I will add some MMO and drain the oil at the 10,000 km mark. That point on, I'm going to be using nothing but French-sourced Mobil 1 0W-40.
Originally Posted By: StevieC
I'm not sure if Falcon_LS's engine has an EGR valve but he certainly has the climate which will produce high heated cylinder heads and cause oil coking with mineral oil.
Yup, my engine is equipped with an EGR valve. It was surprisingly clean, as were the spark plugs and the rest of the exhaust system.
Originally Posted By: Kestas
Originally Posted By: Falcon_LS
Originally Posted By: CivicFan
How many extra parts do you think you will end up with when you reassemble it?
None.
I think that's why he wisely took lots of pictures before disassembly.
I promised StevieC I'd take pictures of the disassembly and reassembly, so hence the pictures.
Never referred to the pictures to reassemble the block.
Anyhow, after 3 days of work the engine's pulled back together. She now runs like an absolute dream, and I'm really glad I put in the time and money into this project.
The injector insulators and valve seals had turned to hard plastic, and the crankshaft seal was the same. There was some oil on the old timing belt as a result and it took a whole can of CRC Freeze Off to remove the crankshaft sprocket. Needless to say, I replaced it as well whilst replacing the crankshaft seal. I cannot beleive the dealership never even bothered to replace it. Always best to do something yourself.
Anyhow, here are a couple of more pictures:
I haven't seen a Mitsi engine that dirty for awhile...we need to go back to the '80's to see that much gunge.Mind you,we don't pull them apart that much - valve guide seals means the car is off to the wrecking yard.But pulling rocker covers off gives us a good idea of what they are like - did a rocker cover gasket on a '94 L200 petrol today,just shiny alloy inside.
Maybe using 15/40 is the way to go?
My reasoning behind the dirty engine is the poor quality of engine oils sourced from the UAE. I've kept a record of all the oils I've used in this engine, and the one used the most was Gulf Max 20W-50. This oil used to turn pitch black within 1,000 km of use. Never again.
At the moment I'm running Motorcraft Synthetic Blend 10W-30 for 8,000 km, when I will add some MMO and drain the oil at the 10,000 km mark. That point on, I'm going to be using nothing but French-sourced Mobil 1 0W-40.
Originally Posted By: StevieC
I'm not sure if Falcon_LS's engine has an EGR valve but he certainly has the climate which will produce high heated cylinder heads and cause oil coking with mineral oil.
Yup, my engine is equipped with an EGR valve. It was surprisingly clean, as were the spark plugs and the rest of the exhaust system.
Originally Posted By: Kestas
Originally Posted By: Falcon_LS
Originally Posted By: CivicFan
How many extra parts do you think you will end up with when you reassemble it?
None.
I think that's why he wisely took lots of pictures before disassembly.
I promised StevieC I'd take pictures of the disassembly and reassembly, so hence the pictures.
Anyhow, after 3 days of work the engine's pulled back together. She now runs like an absolute dream, and I'm really glad I put in the time and money into this project.
The injector insulators and valve seals had turned to hard plastic, and the crankshaft seal was the same. There was some oil on the old timing belt as a result and it took a whole can of CRC Freeze Off to remove the crankshaft sprocket. Needless to say, I replaced it as well whilst replacing the crankshaft seal. I cannot beleive the dealership never even bothered to replace it. Always best to do something yourself.
