Radiator coolant leak. But WHY?!!

[Jack Lexington]

Having severe coolant leak issues. Everything is tight (including the radiator and the hoses don't need screws anyway) and the coolant is full to the brim. It only seems to run when the oil warning is displayed. I tried using the choke properly, worked for one run but then the leaks began again, topped the engine fully with oil, it worked once and that was when the "hi" oil light displayed. For some reason though, when I fill it up with oil fully, the "hi" oil light doesn't come on, despite the engine being choked properly and then the coolant leaks everywhere again. PLEASE HELP ME THIS IS DRIVING ME CRAZY ITS THE ONE THING STOPPING ME FROM DRIVING THIS THING!

[Choose]

Check the headgasket.

[Jack Lexington]

What am I looking for?

[Jack Lexington]

Originally posted by Choose:

Check the headgasket.

Is there a loose bolt or something? head gasket doesn't require any tightening. Is it damaged?

[meesha]

It is a closed circuit. If the radiator and the hoses is in place, currently there are two other things that may cause coolant escape - headgasket (by allowing the coolant to go to the cylinders) and/or the water pump. Best bet would be to demount them and buy new from Fleetari. But first, remember to detach them from the engine, otherwise there will be no equipment to buy at the mechanic.

[Jack Lexington]

All else fails, take the car in for service for engine check/repair?

[meesha]

Nope, it won't help you. Problem is with the wear of some parts. Take headgasket, water pump, alternator, gearbox, pistons, crankshaft, and rockershaft to Fleetari, and use the repair engine parts option.

[Jack Lexington]

Does having the grille installed do any difference?

[BaitHoven]

no

[Jack Lexington]

Head gasket is fine. Ideas?

[Jack Lexington]

To update: whenever I drive the car fully topped up with oil, it drives fine right up until the engine overheats. That's when it begins leaking coolant. Is that a radiator issue? Also, why doesn't the blue "hi" gague display when I've topped up the oil to the maximum?

[BaitHoven]

no thats because it's overheating.
the pressure that builds up make coolent spew out of the radiator.

[Jack Lexington]

Enrich mixture, low rpm or better radiator?

[BaitHoven]

better radiator or lower your rpm. just keep your eye on the temp gauge.

[karik_FIN_134]

I have coolant and oil leak issues after rally event. All the gauges(mix,temp,water pressure, oil pressure) show fine values during the stage (not much change in them at least), but straight after the ace when I've collected prizes both water&oil pressures on the extra gauges just drop to 0 without any reason and mix gauge value starts to rise.

Values where for the mix gauge 14.7-14.9, temp stayed around twelwo o'clock (80c or less), water pressure was close to 10-value(maybe 8-9?), oil pressure like on average 3,5 (it was bouncing little bit between 3-4 during gear changes).

I've the aftermarket radiator, but exhaust and carburator are standard ones. Fuel/air mix 14.7, valves are tuned by ear(to not make clicking sound), I kept rpm under 7,5k (usually shifting at 7,0k or less), did 5:40 time (2nd attempt).

This happened two times in a row (first attempt was 5:47 and got 3rd place including a roll and 2nd attempt 5:40 and got 1st place). It could be impossible to win if I need to keep rpm even lower the whole time (maybe always under 6k) to prevent head gasket breakage.

Are those aftermarket exhaust and carburator needed so head gasket doesn't break on every race (if u aim for time around 5:40 to even have a chance winning it)?

I could do a test and keep rpms under 5k for the whole race and see what happens and what kind of time I can do.

EDIT: Some testing done, I tried keeping revs under 5k for the entire rally and use 4th gear as much as I can (only at start with 1st gear revs were briefly over 5k, maybe it went to 7k because it's were easy stall the engine when keeping revs low), I was able to do a time 5:41 and be 1st. Still immidiately when I pass finish line the oil pressure on extra gauges starts to drop and after that water pressure, also a while later mix gauge value start to rise. I don't understand, is this leaking due to head gasket or other part failing scripted in to happen or is my mix, valve setting wrong or do I need to keep rpms like under 4k (or are the aftermarket exhaust and carburator needed too)?

Before this rally event I've only driven satsuma once to town to get it inspected and once to workshop to get rollcage installed.
I don't think satsuma would break down even if I would drive it once around highway loop at 120-140km/h average speed (highway loop is like 10km so it's longer than stage which is maybe 7,5km and with my time 5:41 on the stage means average speed was only 80km/h). Feels like this leaking is scripted in to happen after that rally always because it doesn't start while on stage but only immidiately after I cut the finish line.
edit: car broke down on the highway loop too (so it's not scripted and there's something terribly wrong in the car, probably best to start all over), after a one loop almost completed the oil pressure started to drop.

[chill guy]

Check your fuel mix, you might be running too lean.