13b Getting Hot!!

mpk490p · July 18, 2006, 05:06:30 PM

Hi, i have had problems with my 13b getting too hot, the car has only been back on the road a couple of months and i took it for a fair long drive today after cruising at 80ish for about 5 mins she\'s got really warm (i know its hot but), now the rad was is fine and when the engine was in my other Series 1 she never got warm, and it does\'nt get warm on tick over in traffic so i can only think of 2 things that would be different
A i have put a mesh on the front on the intake would that stop enough air flow?
B my partner works for Cummings desiel and get lots of nice cheap stuff like oil and battery\'s so i got a 20ltr tub of antifreeze for like Â£15 but it does say it is for industrial deisel engines could that be it? i have added a picture to show the mixture
any ideas would help as the car is suppose to be going to Manchester to have the weber fitted but i dont think i would like the trip at 60 all the way

Just remembered i had to refit the intake manifold could the channels be blocked with sealent?

Thanks
Mark

oldone · July 18, 2006, 05:13:14 PM

What fan system are you running ?:2Confused

MikeLMR · July 18, 2006, 05:18:33 PM

Theres not a lot of frontal area for cooling there, the standard front bumper must have over twice that area. Is it a difference in the gauges ? I know oldschool sensors have a different calibration to the newer ones fitted in later rotaries (I have read that somewhere as it applies when swapping newer engines into older cars)

maximtaylor · July 18, 2006, 05:25:16 PM

Some of the more dense mesh can really restrict air flow. Is there a way you can take it out to try?

Also you\'ll get far better summer cooling running less antifreeze. I\'d only run it as 50/50 in winter. I think 10% mix should be plenty.

Try draining some off and topping with water.

mpk490p · July 18, 2006, 05:28:41 PM

Thanks all kinda confirms my thoughts i like the look of the mess but i dont think it\'s helping, i will water down the mix, is it the right stuff to be using? i know pip used some mad green stuff when the engine was built
just using the standard fan seems to be cooling ok at stand still, as i say she never over heated before only difference being the mess and coolant
Thanks
Mark

mpk490p · July 18, 2006, 06:04:41 PM

what sort of cost is it to upgrade the fan?
do you think any vents in the front nose panel or bonnet will help as when the weber gets fitted i like plenty of air flow
Mark

Fish · July 18, 2006, 06:44:00 PM

More vents in the bumper would be a great idea. Maybe try and find a bumper with bigger holes.

As for the mesh, yeah get shot of it.

Fish

gsb876 · July 18, 2006, 06:58:15 PM

Mark,

Looking at the front of your car theres no other place for air to get into the engine but from the area you have placed the mesh, now the mesh looks quite thick as well so its not good, as others have said the option is to take the mesh out and either get some very thinner linked mesh or lose it all together. But i would deffo take it off and see if it makes a difference.

The coolant question is a interesting one as i\'m sure i read somewhere you have to be careful as to which coolant type you use for the rotary engine as a certain type eats away at the seals? can anyone confirm this please ?? :Nono!

mpk490p · July 18, 2006, 07:09:56 PM

i have to agree and i thought it would be the answer to loose the mesh shame i do like it, should be fun getting it off!
i will drop some coolant out and top up with water, next question being tap or distilled?
hope it doesn\'t eat up any bunnies without the mesh there\'s a lot round here near santa pod!!!
Thanks for the advice guys always good to hear that someone else is in agrement
Mark

gsb876 · July 18, 2006, 07:20:45 PM

BTW you need some fuel very shortly

mpk490p · July 18, 2006, 07:30:52 PM

Thanks, about 6miles i recon!!!
should have plenty of coolant with the 20ltr\'s!!
Mark

oldone · July 18, 2006, 07:39:34 PM

I run about 5% coolant,electric fan manual controlled,in the beginning of summer I had a prob with it running to cold,...freeway temps 75degC.Today it was 33degC only outside,running on freeway temps were 80degC.Temps went up to 85degC in bad traffic holdup before freeway !!:Typing
If you want to keep small openings you will have to start thinking of putting the rad and oil cooler at an angle to maximise the usage of the air coming in.

mpk490p · July 18, 2006, 07:48:59 PM

Quote from: oldoneI run about 5% coolant,electric fan manual controlled,in the beginning of summer I had a prob with it running to cold,...freeway temps 75degC.Today it was 33degC only outside,running on freeway temps were 80degC.Temps went up to 85degC in bad traffic holdup before freeway !!:Typing
If you want to keep small openings you will have to start thinking of putting the rad and oil cooler at an angle to maximise the usage of the air coming in.

No oil rad just a larger water rad she used to be fine so it must be the mesh a electric fan could still be a good idea to get some air into the engine bay to feed the new carb!!
Mark

Fish · July 18, 2006, 08:36:47 PM

Quote from: mpk490pi will drop some coolant out and top up with water, next question being tap or distilled?
Mark

Mark, use distilled.

Fish

drutin · July 18, 2006, 10:06:04 PM

howzit

hope i read wrong but no oil radiator ?
big no no running no oil cooler on a rotary engine, best to use a series 1 or 2 if under radiator or a series 4/5, series 3 ones under the oil filter no good for mod engines

2 cents have you za thermostat in it ? if not you need to put one back in or block off the big hole in the waterpump housing

or it will run hot and cause air bubbles

ps car looks cool

well done

later
glen