ZUKIWORLD Online | Suzuki 4x4 Editorial and Forum
ZUKIWORLD Discussion Forum => Technical Discussion - Beginner / Repair => Topic started by: bobinyelm on June 11, 2017, 04:55:20 PM
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My old Zuk Sami fuel pump quit and I replaced it, but it has leaked at the gasket despite resealing it a couple of times when it should have easily have been sealed tight.
I'm talking ounces of oil, and not a few drops, either, and it runs down leaving a puddle under the car after shutdown. The old pump never leaked a single drop. I put dye in the oil and looked with a black light and found the stream coming down from the pump, and dripping off the bell housing (I originally feared a bad rear main seal).
I just re-pulled the new pump and it looks fine-no cracks in the casting or anything. Gasket looks like new.
I have another new one ready to go on, but wonder if there is a return oil passage for what oil runs down the pump activation rod that could be clogged that is building pressure behind the pump. I really don't see why the new one wouldn't leak like the last new one has been.
The engine only has a few hundred miles since a rebuild a few years back, and it is sludge/deposit free.
Anyone experience such a leak ever?
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Are you sure it's the gasket? Those pumps have an internal seal and a drain pipe (looks like it should have a hose), and if the internal seal fails they dribble oil from the drain.
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I think I may have found the problem-
What I thought previously was a shallow casting flaw is likely a through-crack that dripped when I filled the lower bowl with brake cleaner fluid.
I installed the new pump. I may have just gotten a bad pump-
We'll see.
(https://s11.postimg.org/atof7737j/photo_13.jpg) (https://postimg.org/image/atof7737j/)