Valley pan

[diyanich]

Funny thing,I have a spare intake manifold spacer which I found in the intake port on top of the valves.It's kind of big to go lower and interfere ,so it didn't cause a lot of troubles,thankfully.
But come one,who ever left it there should be ashamed.

[diyanich]

And now I have leak from front end.
I am disappointed,to say the least.

[diyanich]

Confirmed,
Water pump gasket is leaking.

[DallasGV]

Dammit! Sorry to hear...I know how frustrating it is to get finished with a big job like the VP and then something like a leak shows up. Where's the leak coming from - the pipes, the thermostat or where it meets with the lower cover?

[diyanich]

It's coming form the lowest point of Water Pump,where the lowest bolt is,the gasket is bad and I think it was seeping before as well.
New WP is ordered along the gaskets and a S-belt.
My mechanic said to replace just a gasket,but after thinking a bit I decided to get a new Pump with metal impellers,so I can just forget about this for a while.Thermostat can get changed later on without removing the WP,so I am trying to keep the cost as low as possible since I already paid like $2500 this month.It was for some front end suspension(both struts,control arms,tie rod) and Valley Pan related parts.Thankfully I had a CVV and all the Valve Cover gaskets and intake related gaskets bought before,I saw it coming.

Originally Posted by DallasGV

Dammit! Sorry to hear...I know how frustrating it is to get finished with a big job like the VP and then something like a leak shows up. Where's the leak coming from - the pipes, the thermostat or where it meets with the lower cover?

[HPIA4v2]

Make sure you do a thorough diagnostic. here's my timeline and mis-diagnosed experience:
1) replaced WP/thermostat
2) coolant leak when cold, puddle in the front on level street, puddle in the back (toward firewall) when park on incline.
3) I said (and so did alot of peopel), damn the VP leaked.
4) so I did the VP, but leak persisted.

it turned out to be 0-rings on coolant pipes going to WP were pinched.

The solution is to reseat the WP, I dremelled three 10mm long lug-nut bolts(cut off the hex head and dremell a slot for small screw driver to turn them in into where the WP bolts go, these become the guide for WP to slide into place, once you secure the rest of original bolts these three will come out and replace by the original bolts if that make sense). Problem solved, I have not top any coolant in 1 year now.

BTW this is on M62 4.4i engine only.

[diyanich]

This makes sense.
Both aluminum pipes were replaced by new ones as well the gaskets between WP and those pipes.

Originally Posted by HPIA4v2

Make sure you do a thorough diagnostic. here's my timeline and mis-diagnosed experience:
1) replaced WP/thermostat
2) coolant leak when cold, puddle in the front on level street, puddle in the back (toward firewall) when park on incline.
3) I said (and so did alot of peopel), damn the VP leaked.
4) so I did the VP, but leak persisted.

it turned out to be 0-rings on coolant pipes going to WP were pinched.

The solution is to reseat the WP, I dremelled three 10mm long lug-nut bolts(cut off the hex head and dremell a slot for small screw driver to turn them in into where the WP bolts go, these become the guide for WP to slide into place, once you secure the rest of original bolts these three will come out and replace by the original bolts if that make sense). Problem solved, I have not top any coolant in 1 year now.

BTW this is on M62 4.4i engine only.

[HPIA4v2]

Originally Posted by diyanich

This makes sense.
Both aluminum pipes were replaced by new ones as well the gaskets between WP and those pipes.

BTW, if you planningto do reseat the WP, get extra 0-rings just in case (two sizes for both pipes) and buy the OEM WP gasket. Never reuse an old gasket or buy aftermarket for this one.

GL.

[diyanich]

Originally Posted by HPIA4v2

BTW, if you planningto do reseat the WP, get extra 0-rings just in case (two sizes for both pipes) and buy the OEM WP gasket. Never reuse an old gasket or buy aftermarket for this one.

GL.

I ordered a new Graf branded WP with metal impellers along 2 new O-rings,even though these O-rings are already replaced.$2 bucks less in my pocket won't hurt me at this point.

[HPIA4v2]

Originally Posted by diyanich

I ordered a new Graf branded WP with metal impellers along 2 new O-rings,even though these O-rings are already replaced.$2 bucks less in my pocket won't hurt me at this point.

Yep, so far so good on Graf WP, it's been 2 years and 20kmiles ago.