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+--- Thread: Crankcase pressure/volume build up (/showthread.php?tid=3718)
Crankcase pressure/volume build up - Makmak - 11-08-2018
I have competed a blow by test for my ISX871 850K (Correction..it has a second motor mileage supposedly 600k)
As per Rawzes blow by test video. As I increased my rpm slowly to 1500 the difference in the water level kept increasing and oil was coming out of the dipstick. I have checked for the usual blockage related stuff...crankcase filter..blow by drain tube..etc
What can cause continual building of crankcase pressure? I suspect the turbo but how would I test for that? I have not performed a compression test. Engine runs smooth. I performed a cylinder cut out test with Insite and it seemed okay. I'm at a loss!
RE: Crankcase pressure/volume build up - Rawze - 11-08-2018
(11-08-2018 )Makmak Wrote: I have competed a blow by test for my ISX871 850K mileage.
As per Rawzes blow by test video. As I increased my rpm slowly to 1500 the difference in the water level kept increasing and oil was coming out of the dipstick. I have checked for the usual blockage related stuff...crankcase filter..blow by drain tube..etc
What can cause continual building of crankcase pressure? I suspect the turbo but how would I test for that? I have not performed a compression test. Engine runs smooth. I performed a cylinder cut out test with Insite and it seemed okay. I'm at a loss!
maybe drill out the crank case filter so it can;t build pressure and hurt the turbo?
http://rawze.com/forums/showthread.php?tid=65&pid=376#pid376
RE: Crankcase pressure/volume build up - Makmak - 11-08-2018
(11-08-2018 )Rawze Wrote:I have already drilled a hole in the CC filter. While doing the blow by test all that was bypassed as you know. What is the max size file size of a video I can upload to here?(11-08-2018 )Makmak Wrote: I have competed a blow by test for my ISX871 850K mileage.
As per Rawzes blow by test video. As I increased my rpm slowly to 1500 the difference in the water level kept increasing and oil was coming out of the dipstick. I have checked for the usual blockage related stuff...crankcase filter..blow by drain tube..etc
What can cause continual building of crankcase pressure? I suspect the turbo but how would I test for that? I have not performed a compression test. Engine runs smooth. I performed a cylinder cut out test with Insite and it seemed okay. I'm at a loss!
maybe drill out the crank case filter so it can;t build pressure and hurt the turbo?
http://rawze.com/forums/showthread.php?tid=65&pid=376#pid376
RE: Crankcase pressure/volume build up - Chamberpains - 11-08-2018
Upload it to YouTube and then post a link on here.
RE: Crankcase pressure/volume build up - Lonestar10 - 11-13-2018
i do beleive an air compressor can also throw pressure into CC
RE: Crankcase pressure/volume build up - Makmak - 11-15-2018
(11-13-2018 )Lonestar10 Wrote: i do beleive an air compressor can also throw pressure into CCI checked yesterday I do have oil coming out of the compressor discharge port.
RE: Crankcase pressure/volume build up - Rawze - 11-15-2018
(11-15-2018 )Makmak Wrote:(11-13-2018 )Lonestar10 Wrote: i do beleive an air compressor can also throw pressure into CCI checked yesterday I do have oil coming out of the compressor discharge port.
that could cause a lot of issues with the air systems later on.