08-03-2022, 03:27 PM | #261 | |
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Re: Engine temp rises when I get to cruise speed
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08-03-2022, 04:30 PM | #262 |
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Re: Engine temp rises when I get to cruise speed
I installed a larger overflow tank today to rule out a possible problem of losing coolant out of the smaller tank I had. It' a crude plastic bottle, but it'll serve the purpose.
I know, I know it's not going to do anything, but I have to try. If anything, maybe we'll get some good info out of this post. |
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08-04-2022, 01:00 PM | #263 |
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Re: Engine temp rises when I get to cruise speed
Please, take the time and effort to reinstall the aluminum radiator without any other changes and see if it lowers the temp. If it does then you can let Lee know that his radiator is the issue.
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08-04-2022, 01:25 PM | #264 |
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Re: Engine temp rises when I get to cruise speed
I'm curious. Does the blower really come in to play under your present normal driving conditions, i. e. cruise?
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08-04-2022, 04:23 PM | #265 | |
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Re: Engine temp rises when I get to cruise speed
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I know my timing is slightly retarded at cruise with the blower because I don't have a boost timing module to pull it out. |
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08-04-2022, 04:24 PM | #266 |
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Re: Engine temp rises when I get to cruise speed
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08-04-2022, 05:24 PM | #267 |
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Re: Engine temp rises when I get to cruise speed
Retarded timing ?? ,how much ,give use a figure
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08-04-2022, 08:39 PM | #268 | |
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Re: Engine temp rises when I get to cruise speed
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08-05-2022, 02:11 AM | #269 |
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Re: Engine temp rises when I get to cruise speed
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08-05-2022, 02:12 AM | #270 |
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Re: Engine temp rises when I get to cruise speed
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08-05-2022, 07:56 AM | #271 |
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Re: Engine temp rises when I get to cruise speed
My bet is not much if any. 21 is pretty good and likely very little will be realized by going higher. I've not seen any difference on mine.
My 2 cents on the blower...At your cruising speed of 55-60 mph that blower is making very little boost and thus takes very little power to turn, which means it adds very little heat load. Wide open throttle and 5000 rpm would be a whole different story. Just my thoughts from 50 years of being in business as a mechanic and engine builder. Learned a lot the hard way for sure! Terry (betting the old alum rad will fix it )
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08-05-2022, 09:47 AM | #272 |
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Re: Engine temp rises when I get to cruise speed
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08-05-2022, 11:57 AM | #273 | |
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Re: Engine temp rises when I get to cruise speed
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08-05-2022, 12:20 PM | #274 |
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Re: Engine temp rises when I get to cruise speed
Just curious, but I wonder if the blower could be adding a little air to the engine to reduce your vacuum at cruise. My 276" naturally aspirated runs 17" at cruise. It has a 278 degree cam (L100).
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08-05-2022, 12:22 PM | #275 |
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Re: Engine temp rises when I get to cruise speed
Could leaking head studs be a sign of a head gasket problem? I tried many times to remove, clean and replace each one using all different types of sealants and a couple still leak! Just wondering if I have a problem that could be causing the high temps. I did the liquid test to look for hydrocarbons and it came up clean. I don’t know if that test is 100%
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08-05-2022, 01:48 PM | #276 |
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Re: Engine temp rises when I get to cruise speed
Head studs will commonly leak if they were NOT sealed correctly when installed (has nothing to do with the blower).
I use a liquid stud-sealer from ARP. Even with that, sometimes I'll see a few that will weep a bit before they usually seal themselves. It isn't a bad idea to run a batch of Morose 'Ceramic Seal' through the engine after it is first built - helps seal up some of these pesky studs. Typically, if you have a blown head-gasket, it will get worse (especially with boost) and you'll start puking combustion gasses into the radiator or water out the exhaust ports . . . or some combination of both. If it gets bad, you'll see your plugs getting "washed down" and may even blow water out a spark plug hole if you pull them. You definitely don't want a head-gasket problem - as it can also hydraulic the motor if a bunch of water gets into a cylinder. The usual test is to get the engine hot, then come back and pull the radiator cap and see if you are getting bubbles coming up through the coolant. With that said - be careful opening up a hot radiator (especially if under pressure). Good luck! |
08-05-2022, 03:33 PM | #277 | |
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Re: Engine temp rises when I get to cruise speed
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Joe |
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08-05-2022, 03:40 PM | #278 |
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Re: Engine temp rises when I get to cruise speed
I ran the car today just long enough to get it to about 200 degrees. The larger overflow tank I temporarily installed did fill up and I wouldn't say violently, but it seemed to be pretty forceful. I think maybe there was some air in the system from the last time it cooled down and the tank went empty.
I would image, if that's the case, that air went through the system and that was purging that I saw. I won't know if this will help anything until I get a chance to take it for a full ride. Looks like we have some rain coming this weekend in Jersey, so we'll se how it goes. I'll post results as soon as I can Thanks Joe |
08-05-2022, 03:42 PM | #279 |
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Re: Engine temp rises when I get to cruise speed
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08-05-2022, 10:06 PM | #280 |
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Re: Engine temp rises when I get to cruise speed
Another bothersome question; but curiosity is getting the better of me, wondering what are the differences between the ebay aluminum radiator and the brass one. Core size, etc.
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