RUST Encased Spark Plugs - HELP ASAP
 

I have FULLY ENCASED SPARK PLUGS.

Seems i had some water leakage and the spark plugs are fully encased in rust. You cannot even see the spark plugs. Only the white tops sticking out of the heads. RUST is covering everything else. Cant get a socket in or any kind of sharp scraping instrument in.

We have tried
Penetrating oil
CLR
Vinegar
Chipping at it

Need help ASAP

Thanks SHU

try heat.. alittle heat.. they will come right out

Make Sure All The Oil Is Out Of The Pug Area So It Doesn't Start A Fire..

Yes an automatic center punch and some heat from a propane torch. Heat it ding it, heat ding it. then try hitting a socket over it.

Damn i was hoping to be able to post up a pic and show the salt water/rust damage??????

Anyway there is rust all around the spark plug. From the spark plug wall to the spark plug. You cannot even get a tiny screw driver inbetween the socket and the wall in the head.

HEAT THE LIVING PISS OUT OF IT!! Rust will go away.. Got a plumber buddy with a torch for soldering. MAKE SURE THE FUEL IS NOT NEAR IT!! then you may be able to bang on a socket and get it out.. I have seen that before.. maybe not in those extremes but a lot of rust.. Make that head of the plug cherry red. Break the porcelan off then HEAT the Piss out of it.. Keep a fire ext. and some water close by to cool imediately if need be!!

If you want to send me the pics I will post them for you!!

[email protected]

I do believe you should pull the head, as even if you get the old plug out, with the hole open you will not be able to properly clean the area to be able to thread in the new plug without getting rust in the cylinder.

Get you some Krol and spay the chit out of it and let it sit then use short burst with and impact, they should come right out...

Shu-Dog,

Here are the pics you sent me....

Now everyone can see what your talking about:eek::eek::eek:

Just throw the engine in the trash. If the plugs look that bad, then it's only going to get uglier.

Poor Coca Cola on the rust it will eat the rust away. ( and we drank this stuff)

Looks like you have a new boat anchor ( the heads ). Appears to be a lost cause, in my opinion.

I didn`t see head bolts in the photos --- are they rusted away too ?

Agreed, time for some new heads or pull and try to salvage. It would make a huge mess but you could always try a small hand held sand blaster and try to clean the whole head up and shoot some new paint on for the rest of the season at least.

muranic acid will eat the rust off!!!

Yup that is what I would do. Then get some anti acid to spray on things when you are done. That is one hell of a mess you go there!

The single most accurate statement in this whole thread.

NO CHIT:eek:HOW IN THE HELL DID YOU LET IT GET THAT WAY...

If it runs for the time being leave it alone. If not, then as has been said, throw it in the trash and buy a new motor.

I think they meant muriatic acid which might work, there is a product called naval jelly which might work also.

My preference would be sand or bead blasting

If you use acid, have plenty of water handy to flush it off

That looks like a snowplow truck from up here in the northeast... I've seen a ton of them. You aren't spraying anything on there that's gonna help. Best bet is to break the pocelain, and pull it out (it's tapered, so it'll pull out of the steel body). Then, you can use a SQUARE style e-z out, not the spiral style, tap it into the opening where the porcelain was. Snap-on tools square e-z outs work excellent. Use some heat sparingly on the head around the plug... don't use too much, cast iron isn't real forgiving if you get it red. This works 4 out of 5 times, I've done alot of them. Otherwise, you're pulling the heads.

Good luck.

I think you've got bigger problems than just rust on the spark plugs. I'm not sure what's holding that mess together. If you heat that up or smack it with a hammer real hard, it may just come apart on you. You can either A) run it till it breaks, or B) pull the engine and go through it. Changing the plugs at this point is like putting a band-aid on a bullet hole.

Thanks for all the posts guys.

Its not my boat but a friends. Im helping him out. He had a water pump/thermostat issue. So he wanted to clean up, change plugs, wires, new exhaust.

May be a lil late i know.

So just gunnah try to get them out, get it back together and see what happens.

Thanks for all the responses.

Probably try the diesel and coke before getting into purchasing the Naval Jelly or muratic acid.

Thanks SHU

Wow, thats pretty bad. What did the Exhaust manifolds look like!?!?! Let me know if you can't fix them, I have a really nice set of low hour heads that will fit.

Nick

too hard to tell what was actually leaking-heads or exhausts. But it dont look too good either way.

Its a 502 Mag MPI motor.

We'll know more this weekend after trying out ALL the option listed.

Should be interesting.

Looks like some exhaust studs / bolts are broken too ...just pull the heads and see if a machine shop can salvage them ...

Yeah exhaust bolts on this side ALL had to be cut off. There was either too much rust to slip a socket on or the bolt head was soo curroded it was not a hexagon shape anymore. We die grinded w a cutoff wheel all the bolt heads. Now we have 3 cut bolts to deal with.

Also it does look like a couple head bolts have been compromised-fully disintegrated by rust.

Wait n see what he wants to do. Not good anyway you look at it.

Simple fix now and HUGE problems later.

Or fix it all now.