Engine Block Drain Plug Help (7 Viewers)

[charliemeyer007]

Keep going slowly. Once it starts to leak good it will get easier as the chunks will wash out. When it pees decently, I give it a good dose of cleaner in distilled water and let ir work for a few days - drain and do it again. You are removing like 40 years of build up, 20 minutes isn't going to fix that.

 

[kevos37]

I'm currently battling the same problem. I chose the route of using some CLR to soak up in that area. I also use a curved pick to get up inside. I liked the doubled up wire in a drill that another member suggested.

Anyway, it helps soften things up. Chunks picked right out and I've been running CLR through my engine using a drill powered recirculating pump. Flush it out thoroughly when done.

 

[Cloud40]

I'm currently battling the same problem. I chose the route of using some CLR to soak up in that area. I also use a curved pick to get up inside. I liked the doubled up wire in a drill that another member suggested.

Anyway, it helps soften things up. Chunks picked right out and I've been running CLR through my engine using a drill powered recirculating pump. Flush it out thoroughly when done.

View attachment 3979042

The wire worked the best for me! I will give the CLR a try

 

[kevos37]

The wire worked the best for me! I will give the CLR a try

I figured it was a combination of rust, dirt, possibly stop leak, radiator Gunk clogging everything up. Good luck! I did it on the previous 40 build and had good results.

KevO

 

[middlecalf]

Rest of coolant system will need to be dismantled to ensure validity most likley.

 

[Cloud40]

Rest of coolant system will need to be dismantled to ensure validity most likley.

Hoses, water pump, radiator?

 

[charliemeyer007]

heater cores

 

[charliemeyer007]

You will only be able to clean out so much without a full hot tank rot out with really aggressive chemicals.

 

[Cloud40]

You will only be able to clean out so much without a full hot tank rot out with really aggressive chemicals.

Whats a full hot tank rot out?

 

[pb4ugo]

B4 engine blocks are rebuilt they are usually hot tanked or degreased. How difficult is it to remove the core plugs and to replace them? They are in a sort of in a bad spot being under the intake manifold.

 

[Cloud40]

B4 engine blocks are rebuilt they are usually hot tanked or degreased. How difficult is it to remove the core plugs and to replace them? They are in a sort of in a bad spot being under the intake manifold

 

[Cloud40]

B4 engine blocks are rebuilt they are usually hot tanked or degreased. How difficult is it to remove the core plugs and to replace them? They are in a sort of in a bad spot being under the intake manifold.

Can I access the water jackets through the core plugs?

 

[Pighead]

Can I access the water jackets through the core plugs?

Yes, I believe you can

 

[pb4ugo]

Yes, behind the plugs is the water jacket.

 

[Cloud40]

Finally made progress and got the crud out. Would this be a good time to try and run it and force more out before I try to completely flush it?

 

[peesalot]

A " Rod out " is a term used for hot tanking and cleaning a radiator or block or whatever, it involves sliding a rod down the radiator tubes or thru the water jacket to dislodge/break up/remove debris, etc. Put a bucket under and flush at will

 

[pb4ugo]

You can force water in thru the hole and let it drain and repeat often, along with more picking at it. You can likely loosen more crud now that it is open. Or remove the water pump and flush.

 

[Pighead]

Fin Would this be a good time to try and run it and force more out before I try to completely flush it?

couldn't hurt. mostly I'd just run the garden hose in the top of the radiator and out your drain hole, then reverse it for a while.
Did you ever replace those freeze plugs?

 

[Cloud40]

A " Rod out " is a term used for hot tanking and cleaning a radiator or block or whatever, it involves sliding a rod down the radiator tubes or thru the water jacket to dislodge/break up/remove debris, etc. Put a bucket under and flush at will

Thank you for the info