Coolant in oil - Ford Powerstroke Diesel Forum
 
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post #1 of 9 Old 10-15-2012, 05:53 PM Thread Starter
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Coolant in oil

I have a 2008 f450 6.4 and I just recently rebuilt the engine because it had melted a hole in a piston, after the rebuild I noticed I was loosing large amounts of coolant and discovered it was going in the crankcase. Since then we have replaced the front cover and it is still loosing coolant. I am suspecting the oil cooler , if anybody has any Ideas I am open to suggestions. Thanks Dan
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post #2 of 9 Old 10-16-2012, 06:33 AM
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Usually if its the oil cooler it will get oil in the coolant because the oil pressure is higher. Could it be leaking from the radiator or an egr cooler?

08 F350 cc/sb 4X4
h&s minimaxx, 5" flo pro, 4" down pipe, no limit cold air intake, dirty diesel EGR delete with intake elbow, 6.0 exhaust manifolds, custom up pipes, ported intake manifold, Apex 71mm LP turbo, Rudy's cold side pipe, diesel site coolant and transmission filter, diesel site intercooler boots, ccv mod, bilstein shocks, gogo dd solenoid, HID lights, Airdog II 165, PMF traction bars, PMF drag link, moshimoto aluminum radiator
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post #3 of 9 Old 10-16-2012, 06:11 PM Thread Starter
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I am definitely going to check on that , but I'm not sure there is any engine oil running through the radiator. I've always seen in the past in cars that it would put the coolant into the transmission .
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post #4 of 9 Old 10-17-2012, 06:11 AM
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There is no oil running through the radiator. I would guess either a radiator, radiator hose or egr cooler. More than likely if you had a bad oil cooler you would have oil in your coolant. WHat are your deltas between your oil and coolant temp?

08 F350 cc/sb 4X4
h&s minimaxx, 5" flo pro, 4" down pipe, no limit cold air intake, dirty diesel EGR delete with intake elbow, 6.0 exhaust manifolds, custom up pipes, ported intake manifold, Apex 71mm LP turbo, Rudy's cold side pipe, diesel site coolant and transmission filter, diesel site intercooler boots, ccv mod, bilstein shocks, gogo dd solenoid, HID lights, Airdog II 165, PMF traction bars, PMF drag link, moshimoto aluminum radiator
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post #5 of 9 Old 10-17-2012, 07:05 AM Thread Starter
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I couldn't tell you right now , the truck is tore down. I forgot to mention that when I rebuilt the motor , I had a new sleeve put in the cylinder that had the melted piston and I have had people tell me maybe there is something wrong with the sleeve.
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post #6 of 9 Old 10-17-2012, 07:07 AM
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Well good luck bro. Keep us posted!

08 F350 cc/sb 4X4
h&s minimaxx, 5" flo pro, 4" down pipe, no limit cold air intake, dirty diesel EGR delete with intake elbow, 6.0 exhaust manifolds, custom up pipes, ported intake manifold, Apex 71mm LP turbo, Rudy's cold side pipe, diesel site coolant and transmission filter, diesel site intercooler boots, ccv mod, bilstein shocks, gogo dd solenoid, HID lights, Airdog II 165, PMF traction bars, PMF drag link, moshimoto aluminum radiator
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post #7 of 9 Old 11-22-2012, 02:30 AM Thread Starter
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Update ! After the 3rd time of having the motor out we finally figured out where the coolant is coming from. I had forgot to mention that I had put head studs in on the original rebuild , turns out that was my down fall. The studs ended up cracking my block in 4 different stud holes in the valley of the engine right above the lifters. I don't know if anyone else has had this problem or if it is just my bad luck !
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post #8 of 9 Old 11-22-2012, 03:43 AM
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Quote:
Originally Posted by Dan c View Post
Update ! After the 3rd time of having the motor out we finally figured out where the coolant is coming from. I had forgot to mention that I had put head studs in on the original rebuild , turns out that was my down fall. The studs ended up cracking my block in 4 different stud holes in the valley of the engine right above the lifters. I don't know if anyone else has had this problem or if it is just my bad luck !
Wow that sucks. We're they installed improperly or was there another reason that happened?

08 F350 JOB 1
H&S MINI MAXX HD300 W/S1M
SINISTER EGR/COOLER DELETE
6000K BEAMERS HID HEAD & FOGLIGHTS
KMC XD WHEELS W/NITTO TRAIL GRAPPLERS
2.5" LEVELING KIT
DIESELSITE COOLANT FILTER
ROTELLA EC-1 RATED COOLANT
5" DP BACK FLO-PRO EXHAUST
FLO-PRO CAC PIPE & INTAKE ELBOW
CCV MOD
AIR LIFT 5000LB AIR BAGS W/ONBOARD COMPRESSOR
AFE CAI
PMF TRACTION BARS
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post #9 of 9 Old 11-22-2012, 06:34 AM Thread Starter
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I have had a lot of people ask me that , the way that I installed them is lube up the threads with the ARP assembly lube and hand tighten into the block , next I installed the head and put assembly lube on the nut and washer, then torqued the studs to 180 ft lbs in the sequence specified in the instructions and then I torqued them to 275 ft lbs. I am pretty sure that is the correct way to install them.

2008 ford f-450 4x4 , h&s mini max, dpf delete , airaid intake, Pmm egr delete, b&w turnover ball, 5" magnaflow exhaust
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