black sludge in fresh engine ???
07-18-2015, 01:14 AM
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
black sludge in fresh engine ???
im thinking its the moly cam lube but ive never seen this before any ideas
pulled a few bearings and everything looked good as well , this is the first oil change since break in
pulled a few bearings and everything looked good as well , this is the first oil change since break in
07-18-2015, 01:54 AM
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: black sludge in fresh engine ???
cam swap , and modifying the front end of the car , making the center of the k-member removeable so i can inspect/service the bottom end at the track if needed
i got verification on another forum that the sludge is infact the moly came lube i ran when i installed the cam
i got verification on another forum that the sludge is infact the moly came lube i ran when i installed the cam
07-18-2015, 07:16 AM
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Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: black sludge in fresh engine ???
Yeah that's what it looks like it is...
That's why I quit using moly as assembly lube after about my 2nd motor back in the 70s. Great stuff; its lube properties are awesome; but...
It also plugs up oil filters.
That's why I quit using moly as assembly lube after about my 2nd motor back in the 70s. Great stuff; its lube properties are awesome; but...
It also plugs up oil filters.
07-18-2015, 10:39 AM
#5
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Re: black sludge in fresh engine ???
Is that the bottom of the oil pan you're sliming that stuff around in? I assume it is. Looks like somebody went WAY overboard with the moly lube there. You're supposed to use a paper-thin thin smear of the stuff, not squeeze it out like it's a toothpaste tube.
Clean it out, fresh oil and filter and you'll be fine, though.
Clean it out, fresh oil and filter and you'll be fine, though.
07-18-2015, 11:10 AM
#6
Re: black sludge in fresh engine ???
Well Said Damon , if that's really moly lube , in that amount at the bottom of the pan , then way too much was used in the assembly . Your description of a paper thin wipe is perfect and has been the way I've always applied the stuff .
07-18-2015, 08:35 PM
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: black sludge in fresh engine ???
directions say apply liberally so i did first time using that cam lube to be honest , normally i use some other stuff and just used to run 15-40 rottela for break in
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