Engine Block Drain Plug Help

[pb4ugo]

How deep is your hole? You want to work it going up.

 

[charliemeyer007]

Thread 'Question - Engine Block Coolant Drain Plug Size'

Jul 15, 2019

Can anyone confirm? Is the engine block coolant drain plug on the drivers side of the motor 3/8” BSPT?

I realize most people have to chip out the debris when they remove.

TIA!

• Will Van
• Replies: 16
• Forum: 40- / 55-Series Tech

Work slowly in and around. Try and go up once you are in like 1/2" or so.

 

[pb4ugo]

Up and towards the front.

 

[rainingagain]

There was a post a while back where there was so much crap clogging the drain that they chipped out what they could, used a drill bit, and then put a piece of wire on the end and let rip in there to knock everything loose.

 

[Pighead]

You sure that's the right hole?

 

[charliemeyer007]

Remember that guy that drilled out the plug in cylinder head - went threw the cooling jacket into the intake port - Moral work slowly and carefully if you aren't sure of what you are doing. Power tools can ruin things quickly - if you just use hand power less chance of damage. But one of my favorite saying is SOME FOLKS COULD RUIN AN ANVIL WITH A RUBBER MALLET.

 

[diesellibrarian]

This is what worked for me. The stiffer the wire, the better.

 

[rainingagain]

This is what worked for me. The stiffer the wire, the better.

View attachment 3978165

It was you haha!

 

[peesalot]

Pig, I thought it came back into the block on pass side.

 

[diesellibrarian]

It was you haha!

Yup! And I’ve never been happier about a bunch of coolant spilling all over my floor.

 

[pb4ugo]

Maybe divining rods will help.

 

[Cloud40]

Update! I seem to have made some progress. When I insert and go to the right, the attachment on my drill goes right through so I can only assume I have worked through that blockage, but on the left side I am still hitting some resistance. Likely because I am limited with space and its hard to maneuver with my drill on that side. Since I seem to have broken through on the right side, should I assume that fluid should be coming through?

 

[Pighead]

Pig, I thought it came back into the block on pass side.

After the heater it goes up to the water pump along the passenger side of the block

 

[Pighead]

Since I seem to have broken through on the right side, should I assume that fluid should be coming through?

you should have had fluid coming through a long time ago. can you start the engine, maybe build up a little pressure for the coolant? and keep digging

 

[peesalot]

Yeah, start er up and see if its moving water ?

 

[Cloud40]

Just pull the engine, rebuild it.

I probably would, if I knew how.

 

[Cloud40]

Chuck up a short section of a steel fish tape in your drill, spin that mug in there and ream that crap out.

This worked the best for me! it seems like i got the right side of hole open.

 

[Cloud40]

you should have had fluid coming through a long time ago. can you start the engine, maybe build up a little pressure for the coolant? and keep digging

gonna give this shot tomorrow

 

[Cloud40]

Up and towards the front.

I will give it a shot tomorrow! Its such a tight spot, tough to clear out the left side

 

[Cloud40]

Hey guys, so I worked on getting the block unclogged today. I picked, drilled, used compressed air, hammered, started it and let in run for about 5 min. I got one drip out of it Anyways, is there a chance more than one of the water jackets is plugged?