Water pump failure and mysterious large ring

[Ken92SVX]

My SVX let me down last Friday on my way home. It ran rough and stalled. It cranked over really hard and wouldn’t start so I called for a flatbed tow.

When I got it home I suspected a timing belt issue. I confirmed that it was the water pump after tearing it apart. My issue is that during the teardown, I found a very large type ring that seems like a spring ring, measuring about 5” outside diameter and about 4 3/8” inside diameter. I found it in my drain pan below the seized water pump.
Does anyone have a idea where it came from and where it belongs?

I have a 1997 SVX with about 123,000 miles that I have owned for over 10 years.
Thanks for anyone’s help!

Here is a photo of the ring.



Ken

[huck369]

I have no ideal on that ring. But be sure to replace all the idler pulleys, along with the timing belt and water pump.
.

[Blacky]

Tensioner too.

[Ken92SVX]

Originally Posted by Ken92SVX

My SVX let me down last Friday on my way home. It ran rough and stalled. It cranked over really hard and wouldn’t start so I called for a flatbed tow.

When I got it home I suspected a timing belt issue. I confirmed that it was the water pump after tearing it apart. My issue is that during the teardown, I found a very large ring that seems like a spring ring, measuring about 5” outside diameter and about 4 3/8” inside diameter. I found it in my drain pan below the seized water pump.
Does anyone have a idea where it came from and where it belongs?

I have a 1997 SVX with about 123,000 miles that I have owned for over 10 years.
Thanks for anyone’s help!


Here is a photo of the ring.

Ken

I ordered a GMB kit from eBay with the timing belt, idler pulleys and tensioner pulley. Hopefully they are good quality. I ordered a Subaru OEM water pump and is still waiting for it to ship.
Thanks for the replies!
.

[Labmember0003]

I rebuilt my engine completely and I swear I don't remember seeing that ring anywhere inside of it.

Maybe it is a part of the water pump that broke off?


I am running the GMB kit from ebay and it has worked perfectly. Just make sure you use a torque wrench to tighten down the pulley bolts because they don't need nearly as much torque as you think and they are very very easy to strip out. Learned that one the hard way myself.

[irox]

Did it actually come from inside the water pump?

Could it be something that came from the outside the engine? Maybe even some debris that the car picked up off the road, that then fell off then you where draining it, or may be something that stuck on the outside after some other work. It kind of looks like the metal part of of a seal, or something like that.

My first Subaru was a 1990 Legacy, which I bought in 1996 for $500 because it wouldn't start. The own had skipped on the major service and the timing belt had come off because come of the bearing in the pulleys has exploded, ball bearing every where, and some bits of metal, like of like that, but I don't think they where as large as 5".

Good luck!
Ian.

[huck369]

Does it fit on one of the cam sprockets? Seems like one of them had a ring like that on the outer edge

[Ken92SVX]

.It looks like the ring is the same size of the camshaft sprockets and may have came off the driver’s side outer part of the sprocket.
The problem is if it did it would have covered the timing tick mark.

Attached are two photos showing the ring and sprocket.





.

[Ken92SVX]

If this ring did come off the camshaft sprocket, is it necessary?
Does it affect the over all balancing of the timing system?
.

[trophy956]

I've seen those pressed on rings come off 2.2 engines before. The left side looks complete. What does the other side look like?
.

[Ken92SVX]

The right sprocket looked fine. The outer portion doesn’t have a ring and the inner was still intact.
Thanks for the replies.
It must have been a misplaced part or possibly picked up somewhere/somehow.

How do you reseal the oil pump. I saw it mentioned to do that?
I did order the crankshaft seal to replace along with the camshaft seals.


Ken

[Ken92SVX]

Ok

I searched and see that I need to pry off the oil pump which is secured with sealant and then need to reseal with ultra gray RTV.

My question is how do you replace the oil pump o ring?
Do you need to remove the oil pump to replace the o ring?

Ken

[oab_au]

The pump O ring is between the front of the engine block and the pump, remove the pump to replace the O ring, a must do job.

[Ken92SVX]

I have read and ordered the two plugs to change when resealing when doing the water pump and timing belt. I am also replacing the camshaft seals and crankshaft and resealing the oil pump.
Where are the plugs located and what type of bolts are they secured with?

Ken