Pictures of Metal in My Oil Pan...
05-05-2012, 04:58 PM
#31
Thread Starter
05-12-2012, 01:02 PM
#32
Registered User
Join Date: May 2008
Posts: 642
Likes: 0
Received 0 Likes
on
0 Posts
I've discovered very simular copper shavings in my pan. I've pullled apart the motor top to bottom at this point and cannot find where they could have originated from. I have slight rod bearing wear and zero main bearing damage. Zero damage on the top end. Zero cylinder wall damage. I cannot find anything that would have copper coloured shavings taken out of it. The last place I can think of would be my mishimoto oil cooler. So my question to you is; are you running an aftermarket oil cooler?
05-12-2012, 01:38 PM
#33
Thread Starter
I've discovered very simular copper shavings in my pan. I've pullled apart the motor top to bottom at this point and cannot find where they could have originated from. I have slight rod bearing wear and zero main bearing damage. Zero damage on the top end. Zero cylinder wall damage. I cannot find anything that would have copper coloured shavings taken out of it. The last place I can think of would be my mishimoto oil cooler. So my question to you is; are you running an aftermarket oil cooler?
05-12-2012, 02:04 PM
#34
Registered User
Join Date: May 2008
Posts: 642
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by UGotsTaBTrippin' timestamp='1336856573' post='21692948
I've discovered very simular copper shavings in my pan. I've pullled apart the motor top to bottom at this point and cannot find where they could have originated from. I have slight rod bearing wear and zero main bearing damage. Zero damage on the top end. Zero cylinder wall damage. I cannot find anything that would have copper coloured shavings taken out of it. The last place I can think of would be my mishimoto oil cooler. So my question to you is; are you running an aftermarket oil cooler?
I was lucky in that I didn't allow the issue to get too far. I immediatly stoped driving the car when I heard what I believed to be piston slap. I pulled the oil pan the following day and discoverd the copper shavings.
I'm just blown away by the fact that I cannot find where the shavings originated from. I would expect to see simular sized pieces missing from some part of the motor or bearings.
04-30-2015, 06:39 AM
#36
OP zeroptzero now goes by JFUSION, shoot him a PM, or maybe he'll post in here. To my knowledge he's running a healthy motor now, if that's what you're asking. He has a LOT of data/research and pictures regarding what happened to his engine so he may have those pictures for you.
04-30-2015, 02:32 PM
#37
Thread Starter
Actually my previous screen name was Jfusion, it is now zeroptzero (to match my screen name on s2kca.com).
The main bearings failed, and the cylinder walls were scored, so the motor was pooched. I picked up a used ap1 motor and had it freshened up with all new bearings, seals, piston rings, thrust washers, new ap2 oil pump, and Mugen oil pan. So far so good on the newer motor, thanks to Jordanksartell in Tennesee, who helped me immensely
My initial guess was that the motor was run low on oil sometime in it's past, quite often that damage manifests itself later down the road unexpectedly.
But in talking to Jordanksartell (one of the top S2000 mechanics anywhere) he stated that he has seen similar damage caused in S2000 motors that had high fuel dilution in the motor oil. High fuel dilution can occur from a sticky/faulty injector. I often have my used motor oil analyzed, and there was one occasion where the motor oil had fuel dilution detected at a rate of 3%. That may have been the cause of my issue, though we will never really know 100%. I immediately swapped injectors and added Okada coil packs, and I have not had any fuel dilution problems since that time. I continue testing my oil looking for fuel dilution along with wear metals. Good insurance for relatively low cost.
The main bearings failed, and the cylinder walls were scored, so the motor was pooched. I picked up a used ap1 motor and had it freshened up with all new bearings, seals, piston rings, thrust washers, new ap2 oil pump, and Mugen oil pan. So far so good on the newer motor, thanks to Jordanksartell in Tennesee, who helped me immensely
My initial guess was that the motor was run low on oil sometime in it's past, quite often that damage manifests itself later down the road unexpectedly.
But in talking to Jordanksartell (one of the top S2000 mechanics anywhere) he stated that he has seen similar damage caused in S2000 motors that had high fuel dilution in the motor oil. High fuel dilution can occur from a sticky/faulty injector. I often have my used motor oil analyzed, and there was one occasion where the motor oil had fuel dilution detected at a rate of 3%. That may have been the cause of my issue, though we will never really know 100%. I immediately swapped injectors and added Okada coil packs, and I have not had any fuel dilution problems since that time. I continue testing my oil looking for fuel dilution along with wear metals. Good insurance for relatively low cost.
04-30-2015, 08:49 PM
#38
Fuel dilution can also be caused by a lazy o2 sensor causing the car to run rich.
05-01-2015, 04:25 AM
#39
Generally that is only under a Low Voltage signal from the O2. It essentially makes the car think there is an oxygen rich environment and dumps more fuel to try and correct it, when in reality it doesn't need any more fuel, and probably needs less.
Just had a customer lose his motor because of this very reason. Primary O2 was causing a Low Voltage code and the guy kept trying to crank it over and get the car to start and even worse kept mashing the gas pedal to try and keep it running. Needless to say, he ended up having a ton of gas flood his cylinders and wash down into the crank case. He had his Primary replaced and drove the car as normal, not draining that oil right away, and viola chewed up a bunch of bearings and developed a knock. Oh and this was on a motor with only 10,000 miles on it. :cry cry:
And to add to it, when I drained his oil after the failure, it no longer smelled like oil, it straight up smelled like I was draining gas from the engine.
Just had a customer lose his motor because of this very reason. Primary O2 was causing a Low Voltage code and the guy kept trying to crank it over and get the car to start and even worse kept mashing the gas pedal to try and keep it running. Needless to say, he ended up having a ton of gas flood his cylinders and wash down into the crank case. He had his Primary replaced and drove the car as normal, not draining that oil right away, and viola chewed up a bunch of bearings and developed a knock. Oh and this was on a motor with only 10,000 miles on it. :cry cry:
And to add to it, when I drained his oil after the failure, it no longer smelled like oil, it straight up smelled like I was draining gas from the engine.
05-01-2015, 01:58 PM
#40
It can also happen when the o2 has a lot of mileage and gets covered in soot since these cars run rich from the get. It'll cause the oil to smell like gas a little bit, and it won't do damage right away but it will accelerate wear. Honda really should have included changing the primary o2 sensors at 90k miles, 75k severe driving.