Brazil Posted November 21, 2014 Share Posted November 21, 2014 (edited) Hi; I just git back after the car been sitting for a month only being started to take in and out the garage once a day. We think its passing by the water oil cooling in the block where filter makes up. There is oil and water cream looking on the oil cap. I say that because cooling level is fine it has actually maybe increased a bit, temperature seems ok, when accelerate no bubbles are seen in radiator cap. Edited November 21, 2014 by Brazil (see edit history) Quote Link to comment Share on other sites More sharing options...
Big Supes Posted November 21, 2014 Share Posted November 21, 2014 (edited) The emulsification on the oil cap could just be due to condensation from it being sat around. Not really following this part: "We think its passing by the water oil cooling in the block where filter makes up." Edited November 21, 2014 by Big Supes (see edit history) Quote Link to comment Share on other sites More sharing options...
Brazil Posted November 21, 2014 Author Share Posted November 21, 2014 The emulsification on the oil cap could just be due to condensation from it being sat around. Not really following this part: "We think its passing by the water oil cooling in the block where filter makes up." I am talking about the fluidyne water to oil heat exchanger. There is quit a lot of the white gunk in the cap; also i am using run in new engine oil and only done 200 miles after forged rebuild. Quote Link to comment Share on other sites More sharing options...
Tommyd16 Posted November 21, 2014 Share Posted November 21, 2014 Creamy oil cap is probly just condensation as said above. Clean it off and run up to temp. Make sure it dosent over heat and check again. Oil expansion tank is bad and also mayo on dipstick Quote Link to comment Share on other sites More sharing options...
Lee P Posted November 21, 2014 Share Posted November 21, 2014 Creamy oil cap is normal I would worry more if its on the dipstick as well Quote Link to comment Share on other sites More sharing options...
Brazil Posted November 21, 2014 Author Share Posted November 21, 2014 Creamy oil cap is normal I would worry more if its on the dipstick as well Hi lee, the dip stick ha the creamy stuff too! I sent you pics and a video to your facebook, I am out and can't post pic on here on my iPhone. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 22, 2014 Share Posted November 22, 2014 As I said on the phone last night, I suspect it's just condensation. Billet alloy oil filler cap, lots of starts and no run time, lots of standing idle, no apparent water loss..... Classic case for seeing condensation emulsifying the oil. Please post the exact current oil system / oil cooler situation and spec. And as I said, your video of high boost flames from the wastegate pipe were worrying. I would want to have four hours minimum zero boost dyno time to bed an engine, then gradual increases in load, before that sort of shennanigans! People tend to not do this because of dyno time / mapper time costs, but rebuilt engines do need a properly conducted break in period. Quote Link to comment Share on other sites More sharing options...
Brazil Posted November 26, 2014 Author Share Posted November 26, 2014 As I said on the phone last night, I suspect it's just condensation. Billet alloy oil filler cap, lots of starts and no run time, lots of standing idle, no apparent water loss..... Classic case for seeing condensation emulsifying the oil. Please post the exact current oil system / oil cooler situation and spec. And as I said, your video of high boost flames from the wastegate pipe were worrying. I would want to have four hours minimum zero boost dyno time to bed an engine, then gradual increases in load, before that sort of shennanigans! People tend to not do this because of dyno time / mapper time costs, but rebuilt engines do need a properly conducted break in period. It appears it is condensation after all since we pressure tested the cooling system to 3 bar, opened the oil to water heat exchanger and opened up the cam cover and only saw the cream stuff near the oil cap. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 27, 2014 Share Posted November 27, 2014 That's a *lot* of coolant system pressure to be testing at, if it holds that it will be more than fine, they used to pre pressurise the Cosworth Sierras to *less* than that to mitigate head gasket leakage when they ran them in Group A, before Ford brought out the stiffer "Motorsport" blocks Have fun! Quote Link to comment Share on other sites More sharing options...
Benjy Posted November 27, 2014 Share Posted November 27, 2014 Pressurizing the cooling system to 3bar?? Wow! Quote Link to comment Share on other sites More sharing options...
mellonman Posted November 27, 2014 Share Posted November 27, 2014 im suprised your heat matrix held out at that , that sure would pull up any weak points Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 27, 2014 Share Posted November 27, 2014 Not to be recommended at all, not sure why one would take it so high. Ford ran special rads and hoses during the period they used that crutch. No reason to go more than 10% over cap pressure for integrity tests. Quote Link to comment Share on other sites More sharing options...
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