Ad blocker detected: Our website is made possible by displaying online advertisements to our visitors. Please consider supporting us by disabling your ad blocker on our website.
toothofwar wrote:I have used this style in a pinch before on the head of a ranger. It's not a permanent solution, but will get someone by.
Sent from my SM-G950U using Tapatalk
The rubber plugs work ok, and are a good solution if you can get to the leaking plug. I've used them; they held tight and lasted a couple of years at least.
Bad problem, you have to fix it. Could start leaking a lot more at any time. Drain the coolant, drive a bar or big screwdriver through the middle of the plug and lever it out. Clean up the hole and put in a new plug.
These plugs informally are called "freeze plugs" but their proper name is "core plug." They are actually there to remove the casting sand from the block casting (the casting "core") at manufacture time. That they pop out when the block freezes is only coincidental with their actual purpose. They will not protect the block from cracking in a hard freeze. The ones from the factory are steel, and will rust out if the engine is run with plain water instead of coolant.
Last edited by tgreese on Wed Jul 03, 2019 5:18 am, edited 1 time in total.
Tim Reese
Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS/PDB, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination A/Ts, 7600 GVWR
Copper Polly: '75 CJ-6, 304/T15, PS, BFG KM2s, soft top
GTI without the badges: '95 VW Golf Sport 2000cc 2D
Dual Everything: '15 Chryco Jeep Cherokee KL Trailhawk, ECO Green
Blockchain the vote.
Could just be a bad freeze plug. I'd remove and repair properly, but this could mean that it's time for a rebuild. Worst case scenario, you've got a cracked block, but that would usually completely blow out the plug.
Last edited by mx71 on Fri Jul 05, 2019 7:51 am, edited 1 time in total.