oil temp too hot any suggestions?
07-27-2009, 05:42 PM
#31
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Last summer I was on the bay doing wot air/fuel ratio runs. I was going down slowly in jets sizes from 98s all around. I was attempting to go to 89s all around and my bad eyesight and no glasses caused me to load 83s in all around. I figured this out on the next run when I didn't even get to WOT and I saw the oil temp racing towards 325F 
Normally it would run around 210f for a short wot run. Popped in the 89s and right back to 210f.
If I were you I'd go up 4 jet sizes all around to see if it has an effect.
Normally it would run around 210f for a short wot run. Popped in the 89s and right back to 210f.If I were you I'd go up 4 jet sizes all around to see if it has an effect.
07-27-2009, 06:06 PM
#32
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I would wait till about 20 hrs before swiching to synthetic. The 10 AN lines should be fine, make sure you have the correct pressure valve. Remove the one in the center. There are two different part numbers for the adaptor depending on the version of BB, make sure you have the correct one. Good luck tracking it down.
07-27-2009, 06:32 PM
#33
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It sounds like you have covered all the bases on the oiling sytem. I use Fuel Injection so I am not familiar with carb jetting. These guys might be on the right track with the fuel mixture. I use wideband O2, and make adjustments on my laptop. You could install O2 bungs in your risers and see were you are at. You will need a gage or some sort of monitoring system. Then change your jets accordingly. I run mine at 13.5 at Idle through midrange then 12.5 at upper RPM.
07-27-2009, 08:59 PM
#34
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Just curious; what should oil temp be? I have a 502 (procharger) at idle it's around 120, at 3500 will gradually work up to 240, at 4000 will get to 260ish, never over 280. Is that ok?
07-27-2009, 09:13 PM
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It sounds like you have covered all the bases on the oiling sytem. I use Fuel Injection so I am not familiar with carb jetting. These guys might be on the right track with the fuel mixture. I use wideband O2, and make adjustments on my laptop. You could install O2 bungs in your risers and see were you are at. You will need a gage or some sort of monitoring system. Then change your jets accordingly. I run mine at 13.5 at Idle through midrange then 12.5 at upper RPM.
07-27-2009, 09:15 PM
#36
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07-27-2009, 11:07 PM
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I have a new bbc, dart block etc. the motor has about 4 hours on it and I cant control the oil temp. the temp will get up to 140 while idling for a little while and thats fine but as soon as I run the motor at any rpms it will heat the oil up to 260 to 300 degrees. the wierd thing is that the oil doesnt cool down when you slow down you actually have to let the boat idle for a while to cool down the oil. the engine temp never gets over 150 degrees. I have a remote filter and I am using the mercury racing filter. the lines are plumbed properly, I have a 3x18" cooler. the cooler is the first thing fed from the pump, the oil runs opposite from the water direction. the oil lines are routed from the block adapter to the remote filter from the remote filter to the cooler from the cooler back to the block adapter. I can take the drain out of the oil cooler and with the boat running the water is hot so I assuming that the cooler is dissapating heat? the sender is in the pan and I have changed the sender already but I am not eliminating a bad sender(wishfull thinking). I am open to suggestions. could the cooler not be any good? the dart block doesnt use the 11 or 30# bypass to my knowledge.
07-27-2009, 11:45 PM
#40
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I run the Teague coolers like Wobble. But I remember reading in the CPPerformance catalog that chrome plating your cooler dramatically affects the ability for it to dissipate heat FWIW.
