1997 GMC Yukon Build Thread

[Tonyrodz]

I'm just having another look.
Is the weep hole on top of the pump,cant see anything from underneath. Pump is dry. Maybe wIt until it has cooled down completely the look for moisture patch?

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Weep hole is on the bottom of the water pump. Just slide your ass under there with a flashlight. Look for the wet spot--lol--or green or rusty residue.

 

[97YukonNZ]

Has cooled enough to de pressurize the rad so will keep an eye on it. Rad is full and clear,well green and clean.
Not much room to showcase my photography skills but can you make out the gasket and back plat on the pump?

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[97YukonNZ]

Weep hole is on the bottom of the water pump. Just slide your ass under there with a flashlight. Look for the wet spot--lol--or green or rusty residue.

Will have a look now. Cant really see much past the balancer. Will get in my favorite position now.
Under her! Haha [emoji6]

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[97YukonNZ]

Yeah cant see dich under there. Wee bit of glisten on the bolts holding inspection plate on the back of the pump. Will have a wipe up and have another look later

Thanks for your help old boy [emoji16]

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[pwtr02ss]

Usually, they start to leak when they need replaced. I'd say thats your culprit

 

[97YukonNZ]

Usually, they start to leak when they need replaced. I'd say thats your culprit

Yes I think so too. All I've had to do for the last couple of years is oil,filter and coolant so it's been a good run while it lasted.[emoji106]
So when I do the pump I'll do a new serpentine belt,thermostat, bottom hose.
I dont do a lot of miles but it will be good to flush the system and get new fluid in there.
Lol I might do plugs n wires as well.
Always the way isnt it! Am just organising myself to get the rear leaves reset and a local shop reckon they can put together some heavy duty shocks to stiffen the ride back up.
Winter truck projects time[emoji122].
Cheers man.

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[Tonyrodz]

Yes I think so too. All I've had to do for the last couple of years is oil,filter and coolant so it's been a good run while it lasted.[emoji106]
So when I do the pump I'll do a new serpentine belt,thermostat, bottom hose.
I dont do a lot of miles but it will be good to flush the system and get new fluid in there.
Lol I might do plugs n wires as well.
Always the way isnt it! Am just organising myself to get the rear leaves reset and a local shop reckon they can put together some heavy duty shocks to stiffen the ride back up.
Winter truck projects time[emoji122].
Cheers man.

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Get a good water pump. Buy once/cry once brotha.

 

[97YukonNZ]

Get a good water pump. Buy once/cry once brotha.

Hi
Just looking at water pumps to see what is around. There are a few available options in the country,the most expensive being an edelbrock for $695.00 the others are $95.00-$230.00 ish
Was just having a look at the yukon to see if it is the same as an ac delco cast pump I've found on a local trade site. Looks the same. Not sure if I'm short or long tho so need to work that out.

Anyway just looking at it and I can see a small pool of water in the v of the block under the thermostat housing. May not be pump?

Could it be the valley gasket? I recently decreased top end of the motor but I can see moisture in the crevice between valley and rocker cover. No oil in the water and is cooling well.

Going for a long drive tomorrow so will check when I get there and when I get back as any moisture should evaporate off the block. Then check again when it's cold to see if wee pool on block again. [emoji849]

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[pwtr02ss]

Those are bad for the intake gaskets to leak. That's definitely a possibility

 

[97YukonNZ]

Those are bad for the intake gaskets to leak. That's definitely a possibility

I had heard that.Prone to Injection problems around 200k also.[emoji849]
When I 1st got it my thoughts were to dump the factory injection,install an edelbrock performer vortec manifold and do a 4bbl injected carb along with Hei ignition and a wee cam n headers.[emoji41]
I'm a long way off doing that and tbh I've been pretty happy with how it performs this far![emoji106]
Is the word Stop Leak Additive a bad word in the short term [emoji37]

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