I recently did some minor repairs to my '86 240 GL; Replacing Harmonic Balancer, Replacing all Bushings on the Alt, P/S, and A/C, complete fan belt replacing. But now I have a problem. After finally getting all parts back together, I noticed that the Coolant Resivoir was bone dry. So I started to fill it up when I heard a dripping noise on the splash pan. After jacking up the car and removing the splash pan the coolant was all draining out. I cannot quite see exactly where it is coming from, so I was wondering if you have any suggestions to where it might be at.

Thanks.

Sounds like the water pump to me. Good luck if so, and change the timing belt while you're in there anyway.

Sincerely,

JBeechcraft

If you have the original rad with plastic ends, one of the ends will have cracked, or the seam where the plastic joins the metal centre piece will be leaking just near the bottom mount.

Either way it's a new rad - could of course be something else, a hose or whatever if you've had them apart.

OR

you might have hit it with a spanner if it was in place when you cracked the crank bolt holding the demonic balancer.

Before the Deluge tonight in Kansas, I got to tinker around with it a bit and once taking off the fan and the fan shroud, I ran some water thru the overflow tank and was able to see the leak right off of the coolant pump. My question now is how the hell do you get heater return pipe mounting bolt off? After 20mins and a few bloody knuckles it seems I need to jack her up again and remove the Alt. Is this the only way? Also, anyone know of a cheap but reliable source for the coolant pump? And I suppose I need to replace the timing belt like Abnormally Aspirated suggested. I have Bentley's 240 service manual and it sounds ridiculously hard. Suggestions?

Thanks.

There's a detailed description of a waterpump replacement on a B230 in the FAQ's

http://www.brickboard.com/FAQ/700-900/WaterPumpChange.htm

If you've already changed the harmonic balancer replacing the timing belt should not be any more challenging. Again it's covered in the FAQ's.


http://www.brickboard.com/FAQ/700-900/EngineSealsBeltsVent.htm

So I got the water pump off and the gasket on it was rotting away, so hopefully this is the only place that the leak is coming from. My next question is, any suggestions where to get a water pump and timing belt? I found a kit on ebay that has:

1. New Water Pump (Hepu)

2. New Water Pump Gasket

3. New Timing Belt (TRW)

4. Front Crank Seal

5. Front Cam Seal

6. Front Intermediate Shaft Seal

for $61, from FCP Groton. I'm a total newb to this so, does this sound like an OK deal? The water pump alone was pricing around $55-$90 on other websites. Is there someother place I should be looking?

Thanks.

Sounds good, I've used the Hepu pumps with good results on both 700 and 200 series and FCP is a good source. The kit is probably cheaper than the pump and belt from a local place and you will have the seals on hand if you find one that is leaking.
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Dave Shannon
Spring Valley, California
'67 1800s
'73 1800ES
'88-240
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