New air filter completely clogged in under 20 hours!?

[Stu Jackson]

This is good to know! My exhaust hoses have some cracks on them. I was planning on replacing it this winter but I think it's time to bust out a light to look for leaks!

Go to the link, Reply #33 and on, have photos. You can see in the port locker the grunge left by the old hose, exhaust gas leak stains, never any water. There really is nothing a light will help you to analyze, the ONLY reasonable criteria for replacement is age, and not use. My boat was built in 1986 and I did this work in 2012. Do the math... Actually the replacement was well overdue by maybe five years!
Don't over analyze this, just do it.
Good luck.

New exhaust hose installed on my '88 today.... exhaust hose FLIX - Page 3

New exhaust hose installed on my '88 today.... exhaust hose FLIX - Page 3

c34.org

 

[Isskra]

When I read "Paper Filter", my first thought was a bad idea.
Our diesel engines are simple machines. Feed them AIR, Clean diesel, and maintain compression - they are happy to propel you anywhere you please.

Dish the paper filter and look for something that lets more air get to your engine.

Do you know a lot about diesel in boards. I have a Yanmar 8 hp. I'm slowly learning about her. My hunter cherubini 27 ( 1977 ) has one in her. It's original. Last year I put a new ignition in her. And I'm not certain I have it wired correctly. The previous owner chopped some wires and added ones .... I think the white wire is the ground that goes to the key. ? But I am not sure.

 

[Davidasailor26]

Do you know a lot about diesel in boards. I have a Yanmar 8 hp. I'm slowly learning about her. My hunter cherubini 27 ( 1977 ) has one in her. It's original. Last year I put a new ignition in her. And I'm not certain I have it wired correctly. The previous owner chopped some wires and added ones .... I think the white wire is the ground that goes to the key. ? But I am not sure.

Probably best to ask that in a new thread to keep it separate from this topic.

 

[Project_Mayhem]

If it is mold/mildew (or other organic material)...the black color will dissapear or turn a pale yellow or reddish color. If it is belt dust, not much will happen.

If you have any sort of spray cleaner with bleach in it.... just give the filter a squirt and see what happens. If it IS mold, clogging your filter ....then paper turns out to be the wrong material for this environment and you need to switch to a synthetic membrane.

Thank you sir!

I strongly advise not doing this. Some people get sick faster then other tougher (resistant) people just from sniffing. They could breath in pores. Those mold pores are super tiny, you won't see them in the air.


I think Pro. May. needs to do a feel test on the black stuff. Does it feel like belt or soot, or dirt, or mold. Yes black mold when rubbed in fingers does have a distinct "feel".

I'll try to find some black mold to feel as a reference

Go to the link, Reply #33 and on, have photos. You can see in the port locker the grunge left by the old hose, exhaust gas leak stains, never any water. There really is nothing a light will help you to analyze, the ONLY reasonable criteria for replacement is age, and not use. My boat was built in 1986 and I did this work in 2012. Do the math... Actually the replacement was well overdue by maybe five years!
Don't over analyze this, just do it.
Good luck.

New exhaust hose installed on my '88 today.... exhaust hose FLIX - Page 3

New exhaust hose installed on my '88 today.... exhaust hose FLIX - Page 3

c34.org

Are you trying to say that my 31yo hoses are past their prime?! Pfft... I've seen hoses last 48+ years! These things still have plenty of life left!

Yeah they are definitely past due judging by the cracks. I was going to use a flashlight to look for exhaust with the engine running. They will be replaced for sure. It's just a matter of before or after haul out

Do you know a lot about diesel in boards. I have a Yanmar 8 hp. I'm slowly learning about her. My hunter cherubini 27 ( 1977 ) has one in her. It's original. Last year I put a new ignition in her. And I'm not certain I have it wired correctly. The previous owner chopped some wires and added ones .... I think the white wire is the ground that goes to the key. ? But I am not sure.

Wow, you have a lot of boats! I'd pick up a service manual for your yanmar and start tracing wires. The service manual will show wire colors (assuming a PO didn't change them) and various connectors. It probably won't make much sense in the beginning but the more you work on it, the easier it'll become

 

[PEBI]

Mr Mayhem. I suppose if you were to touch black mold and then take your finger and wipe it onto something it would feel a bit like chalk and into well modly like thing. But Diesel soot is like greesy because it comes from a hydrocarbon and if you rub it on your figer and wipe it on something else it should feel more greesy and not damp and well.... An engine belt. Well that would feel like rubber or plastic correct? When I've done heavy braking on a bicycle (I'm sure we all can relate to that), a synthetic rubber tire gives of this specific (dust) texture if you touch it. Well that should be what it feels like with you hands.

 

[Isskra]

Thank you sir!

I'll try to find some black mold to feel as a reference

Are you trying to say that my 31yo hoses are past their prime?! Pfft... I've seen hoses last 48+ years! These things still have plenty of life left!

Yeah they are definitely past due judging by the cracks. I was going to use a flashlight to look for exhaust with the engine running. They will be replaced for sure. It's just a matter of before or after haul out

Wow, you have a lot of boats! I'd pick up a service manual for your yanmar and start tracing wires. The service manual will show wire colors (assuming a PO didn't change them) and various connectors. It probably won't make much sense in the beginning but the more you work on it, the easier it'll become

I was able to find the original manual online. I found the model number. You are right. Things will be one more and more clear, the more I study, and work on it. Thank you for the encouragement.

Edit: Wait. Did I post this reply to the correct thread? I'm still trying to figure this forum out. Sorry if I made an error.

 

[Project_Mayhem]

I should have destructive testing done by the end of the week. I have plenty of diesel and belt dirt around for comparison

I was able to find the original manual online. I found the model number. You are right. Things will be one more and more clear, the more I study, and work on it. Thank you for the encouragement.

Edit: Wait. Did I post this reply to the correct thread? I'm still trying to figure this forum out. Sorry if I made an error.

It's best practice to do one topic per thread. It ensures the original topic is answered and helps keeps things organized when searching the forums for info. Send me a private message if you'd like a few more tips on tracing wiring

 

[Stu Jackson]

You mean you didn't get the 50 Year optional hoses?!? Oh, horrors...
I often wonder about skippers who have a job ahead of them and for some unforsaken reason make even more work for themselves. If you do this the same day you replace it, you either have to deal with a hot hose or wait until it cools down. Waste of time. If the cracks are small enough to let exhaust gas out but not water, it will unlikely that you'll be able to see anything. And anyway even if you do, what's the point if you've decided to replace anyway?
Your effort should be directed at finding out how long a new hose should be so you don't have to buy more than you need. This is one place where when it comes to hoses it's just not worth it' they're very expensive by the foot. If you read all of the link I posted, you'll see that for decades owners of my boat have measured and repeatedly documented that hose at 17 feet. I'm sure owners of your boat have done so, too. That's what I'd spend my time on learning.
Good luck.

Are you trying to say that my 31yo hoses are past their prime?! Pfft... I've seen hoses last 48+ years! These things still have plenty of life left!

Yeah they are definitely past due judging by the cracks. I was going to use a flashlight to look for exhaust with the engine running. They will be replaced for sure. It's just a matter of before or after haul out

 

[Project_Mayhem]

You mean you didn't get the 50 Year optional hoses?!? Oh, horrors...
I often wonder about skippers who have a job ahead of them and for some unforsaken reason make even more work for themselves. If you do this the same day you replace it, you either have to deal with a hot hose or wait until it cools down. Waste of time. If the cracks are small enough to let exhaust gas out but not water, it will unlikely that you'll be able to see anything. And anyway even if you do, what's the point if you've decided to replace anyway?
Your effort should be directed at finding out how long a new hose should be so you don't have to buy more than you need. This is one place where when it comes to hoses it's just not worth it' they're very expensive by the foot. If you read all of the link I posted, you'll see that for decades owners of my boat have measured and repeatedly documented that hose at 17 feet. I'm sure owners of your boat have done so, too. That's what I'd spend my time on learning.
Good luck.

Thanks. I have the hose on hand. It doesnt look as difficult as everyone says it is. Now I just need to find time to replace the hose, fix the furler, repair the sailcover, fix cabin and panel lights, detail the whole boat, take the boat back to the yard 5.5 hours away, winterize, put up the cover, setup heat/lights for winter work... It never ends!