[C2] Leaking C2
Thread Starter
Racer
Joined: Jan 2014
Posts: 430
Likes: 17
From: McKinney, TX
Appears to be lighter weight than oil. I've checked the radiator connections and the manifold neck for leaks. None. I've checked around the distributor, valve covers, and oil cannister. Nothing. But when I drive it and let it set leaks show up on the garage floor.
Le Mans Master
Joined: Sep 2008
Posts: 5,662
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From: Lake Minnetonka, Mn
2018 C1 of Year Finalist
Team Owner
Joined: Jul 2001
Posts: 21,404
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From: Various places in Southern California.
Let's try to narrow this down.
When you say middle, do you mean middle right to left? And also middle front to rear? About where front-to-rear is the drip?
What transmission do you have? Manual fluid is very different from automatic fluid. The latter should be obvious if that's the case.
Manual transmission oil is usually heavier weight than engine oil. So your comment that it seems lighter that engine oil would seem to rule out the transmission.
What color coolant are you running? Assuming it's green or orange, and of sufficient concentration, that should also be obvious.
If it's just water or condensate, it should evaporate pretty quickly. Does that happen?
Which leads me to brake fluid. While that shouldn't drip in the center of the car, drips have a way of flowing quite a ways. It could run down the firewall and drip somewhere near the transmission, picking up some color along the way. I would look very carefully around the MC and the brake lines. That's one leak you don't want to let fester.
When you say middle, do you mean middle right to left? And also middle front to rear? About where front-to-rear is the drip?
What transmission do you have? Manual fluid is very different from automatic fluid. The latter should be obvious if that's the case.
Manual transmission oil is usually heavier weight than engine oil. So your comment that it seems lighter that engine oil would seem to rule out the transmission.
What color coolant are you running? Assuming it's green or orange, and of sufficient concentration, that should also be obvious.
If it's just water or condensate, it should evaporate pretty quickly. Does that happen?
Which leads me to brake fluid. While that shouldn't drip in the center of the car, drips have a way of flowing quite a ways. It could run down the firewall and drip somewhere near the transmission, picking up some color along the way. I would look very carefully around the MC and the brake lines. That's one leak you don't want to let fester.
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Michael S. Palmer
Team Owner
Joined: Aug 2008
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From: Rochester NY
St. Jude Donor '09 thru '26
Good, logical post! 
A standard first step when trying to pinpoint a leak problem.
How much fluid, and how long does it take to show up? Another question would be does it leak X amount when you return from a drive, and then stop, or does the leak continue for as long as the car sits there?
Originally Posted by Bowtyeguy
Put a piece of card board under the car, take a pick and lets see what it is.
A standard first step when trying to pinpoint a leak problem.How much fluid, and how long does it take to show up? Another question would be does it leak X amount when you return from a drive, and then stop, or does the leak continue for as long as the car sits there?
Race Director
Joined: Jan 2003
Posts: 17,723
Likes: 3,708
From: Central Arkansas
Sounds like middle of the car means centerline but under the engine. One idea is to wash the engine down, blow it dry and dust the block with baby powder to help trace the leak path.
