[Mary51]

I am in the process of removing the exhaust elbow from a Volvo Penta 2003b. The plugs are secured by a U-shaped washer (for want of the right term) which is secured by a small bolt. The washer(?) and bolt were easy to remove.

I hesitate to whack the plug (gently) if there is some puller tool that will do the job right. A few careful attempts to pry with a razor blade seemed useless.

Any suggestions will be gratefully received!

Can't get a pic uploaded, either too big or wrong format. Bah humbug.

 

[Rockter]

Mary....

Which plug is it?.... point it out on this diagram.....

Volvo Penta Exploded view / schematic Cooling Syst, Induction and Exhaust Manifold. Seawater-cooled Engine. 2001, 2001B, 2001AG, 2001BG, 2002, 2002B, 2002AG, 2002BG, 2003, 2003B - MarinePartsEurope.com

 

[Mary51]

The plug held by 4 and 5. The plug isn't shown.
Thank you! for the diagram, I couldn't get my pix to load. 1 wrong format, the other too big, :-(.

 

[Mary51]

Parts diagram showing plug parts

Cooling Syst, Induction And Exhaust Manifold. Freshwater-Cooled Engine 2002, 2002B, 2002AG, 2002BG, 2003, 2003B - 7726000 - Volvo Penta

Parts 8, 9 and 9A are the plug parts for one plug and Parts 10, 9 and 9A for the other.

I believe I need to replace this exhaust elbow, but would like to go carefully in case I can continue using it. When I got the exhaust hose off, rusty water poured out. Can't a get look inside it while it is in place...

Thanks for any suggestions you can offer!

 

[jrd22]

How about using a mirror and flashlight to get a peak inside? Works sometimes.

 

[Capt Len]

If rusty water was in the elbow, sounds like it's dangerously close to backing up into the engine (depends on the shape of things but not good.).. I like a drain in the bottom for this reason.Sometimes disassembly requires a certain quota of skinned knukles and unusual language.

 

[Mary51]

I tried a mirror and flash pic with camera but couldn't get a good look inside. Also, have tried lots of foul language and skinned knuckles.

Rusty water might have been in the exhaust hose I took off the elbow, but I can see rust inside the elbow where the hose attaches.

At this point, as usual, when all else fails muscle it. The rubber mallet comes out today.

Thanks all.

 

[Mary51]

Done. Put a scrap of silicone baking sheet on the plug, flat head screwdriver on that, and a couple of little whacks with the rubber mallet and they fall out.

Intake for pipe from heat exchanger was 50% blocked by rusty corrosion, gasket worn to nothing and little bits of debris at that opening. A new elbow for sure.

 

[hellosailor]

Mary-
Forgive me if this is old news, but you may want to drop about $25 at the auto parts store for a bottle of "NeverSeize", or other brand name of antiseize paste. It is mainly an oil heavily doped with zinc, nickel, copper dust and generally should be used sparingly since it manages to migrate all over your fingers and any nearby tools or clothes. But if you swab it on exhaust parts, like pipes and plugs, before reassembling them? Ten years from now they will come apart without ANY problem.
That bottle will last "forever" and you may come to love the stuff. Well worth the expense!

 

[Mary51]

Thank you, hellosailor. I do have some "Antiseize" but would not have thought to use it when installing the new elbow without this reminder.

The one I removed appeared to be original with the engine in approx. 1996... After doing a little reading, I clearly should have checked it before now. I have had the boat about 10 years. Just retired now, I am seriously checking out and getting to know all the innards and learning to do as many repairs as possible.

 

[hellosailor]

Antiseize kinda confuses a lot of alleged mechanics. I use it on tire lugs and spark plugs, among other things, where just a tiny bit is all you want. Some highly trained certified bozo managed to spread that over the TIP of my plugs once upon a time (car, not boat) and it drove me nuts for three weeks trying to figure out how he killed two cylinders in the engine. Well, yeah, shorting out the plugs, all it takes is a tiny little bit!

But used properly...It rapidly pays for itself on things like exhaust fittings and bolts. You never hear that wail of "I'm gonna have to cut this off its all rusted you're gonna have to buy a whole new one...."

That, and a can of PBlaster or Kroil to get anything that's rusted stuck, unstuck. I think they must put finely ground elves in that stuff, or elf attractant, so they come around overnight and just make it all new.(G)

 

[Mary51]

PBlaster is now on my list. Thanks, again. There is a bolt replacement on the chore list.