Jump to content

AngrySailor’s random machining, motors, fix it or (explitive) it thread


Recommended Posts

11 hours ago, 560Dennis said:

The one that came out of mine were 4.0375 oversized from rebuild engine exchange possibly. Reason I asked . I think I got one if you need it but I’m sure I wouldn’t use it , up to you 

yep n we’re 4 1/8 

I could not find pistons ,any ,a year of spun around , contact my engine builder ,he went to Sue at wiseco in Mentor. Got them made .08 over to match clean up. Vroom! , 2 years wasted , thunder !
Got .08 Hastings rings from Chevy v8 in it . I have 4 sets of rings come to think of it ,you can have if you need them if you go this route . V8 rings were 40 bucks cheaper than 4 cylinders . Dah we went that way. Reason I got four sets extra.

the weeds I get into make me sneeze ! 

Might take you up on that sometime. Thanks. You got serious pistons in that, I remember your build. The modern ring package will hold up eat better also. Low tension to boot! 

Link to comment
Share on other sites

1 hour ago, AngrySailor said:

Might take you up on that sometime. Thanks. You got serious pistons in that, I remember your build. The modern ring package will hold up eat better also. Low tension to boot! 

Just remembered ,my piston the ring gap groove is big (?) all I can remember, and ring is real close to dome if I recall 

Link to comment
Share on other sites

9 hours ago, 560Dennis said:

Just remembered ,my piston the ring gap groove is big (?) all I can remember, and ring is real close to dome if I recall 

Huh. Not really an issue unless you put NOS or forced i suction on your Fordson, but thought they would have kept the top ring land down a bit seeing as there’s so much length on the piston. Is she 5/32,5/32,3/16 or 1/16,1/16,3/16 ring package? Lower oil control ring? 

Link to comment
Share on other sites

On 7/18/2023 at 4:20 PM, AngrySailor said:

Back on a big ship. 10,000hp+ 6cyl. Red line is 105rpm. That’s a spare piston and liner hanging in the one pic. 

D223AC6B-CB52-4D6A-BA49-CD95655AD6F7.jpeg

9F497631-987E-41B0-AEBD-8CBDAAD7E274.jpeg

That would concern me ! The mfg. ( someone of unknown origin ) would put one spare piston on board . You’re not confident in your engine ,you put a spare piston to  change out at sea . What about the other five ?

This common procedure?

Set me straight on this ?

Link to comment
Share on other sites

14 hours ago, 560Dennis said:

That would concern me ! The mfg. ( someone of unknown origin ) would put one spare piston on board . You’re not confident in your engine ,you put a spare piston to  change out at sea . What about the other five ?

This common procedure?

Set me straight on this ?

Yeah that’s normal. Better than having no spares! We have several exhaust valves and cylinder heads which are a more common failure but ships are required to maintain stock of “critical spares” and a liner and piston is on that list. Usually these engines are in a rotation of every three years change/inspect pistons and liners and we usually do two units per year to make that happen. It’s a lot of space and weight to carry a full set also. These slow speed engines usually give plenty of warning and will run near beat to death... you can also run With non functional units, piston removed even. 

  • Like 1
Link to comment
Share on other sites

I was mildly surprised that the top speed on that engine was just over 100 RPM.  That is what those huge 100,000 hp Wartsila-Sultzers run.  Although I read once that they sometimes slow them down to 75 RPM for fuel savings.

Link to comment
Share on other sites

4 hours ago, Gearclash said:

I was mildly surprised that the top speed on that engine was just over 100 RPM.  That is what those huge 100,000 hp Wartsila-Sultzers run.  Although I read once that they sometimes slow them down to 75 RPM for fuel savings.

Pretty sure some of the largest run only 60 rpm full away. We can idle easily at 15rpm, I’ve seen one run down below 10rpm once. Almost unbelievable it was running, near complete stop at every cylinder. These engines have a “critical or barred speed range” where they vibrate so being that were variable pitch propeller we run 80-105 rpm when manoeuvring, this keeps us out of the barred speed range. Those big guys are direct drive so they have to avoid operating in that range. They pass through it or below it as quickly as possible. There is isn’t a torsional damper large enough to absorb all that! 

  • Like 1
  • Thanks 1
Link to comment
Share on other sites

8 hours ago, AngrySailor said:

Yeah that’s normal. Better than having no spares! We have several exhaust valves and cylinder heads which are a more common failure but ships are required to maintain stock of “critical spares” and a liner and piston is on that list. Usually these engines are in a rotation of every three years change/inspect pistons and liners and we usually do two units per year to make that happen. It’s a lot of space and weight to carry a full set also. These slow speed engines usually give plenty of warning and will run near beat to death... you can also run With non functional units, piston removed even. 

Thanks for the explanation ! Help a landlover !

  • Like 1
Link to comment
Share on other sites

21 hours ago, AngrySailor said:

Nice and cool up here this evening. Was stinking hot and humid in the lakes. 

C6723334-9045-43BF-BD5B-258BCB3DF726.png

I saw 92 on the truck thermo in Downeast Maine on Monday and 89% humidity

Been raining so much we got another round of Black Flys

Got chewed up pretty good on Sunday digging footings  

Nothing like hot, humid and buggy 

  • Sad 1
Link to comment
Share on other sites

20 hours ago, jeeper61 said:

I saw 92 on the truck thermo in Downeast Maine on Monday and 89% humidity

Been raining so much we got another round of Black Flys

Got chewed up pretty good on Sunday digging footings  

Nothing like hot, humid and buggy 

Nice evening yesterday, warm today but nothing like it was in Toledo...

57CA2F3C-2398-4F47-95F6-4DA89F82EDB1.jpeg

DFD60DD6-8BA7-44C9-9FA9-786717BD35EE.jpeg

8FCDA70B-BAD7-4E55-83C9-FBF7D7DC6557.jpeg

0A62C87D-13B5-45D1-A71F-DBA65917AE06.jpeg

88EE397F-CF96-4AE0-B3B0-A8A4096CAF76.jpeg

Link to comment
Share on other sites

The pictures that came from my old phone largely post like that, annoying! Old phone you could hold any direction and they would post right. New one you can only hold with the capture button to the right. That's progress right there!

Link to comment
Share on other sites

5 hours ago, DT Fan said:

How fast are you traveling there? Would the powers that be get mad at you if you brought a Musky rod and some lures and did a little trolling? Good area, big fish!

Think we were reduced speed there. Maybe 8-10 knots? Full speed is around 14.5kn. There’s actually a couple rods on the stern. Probably highly illegal but rules were made to be broken. I remember a captain telling one guy he couldn’t be on deck (fishing) without proper PPE (he had shorts and T shirt on), buddy went back and put work gear on and continued jigging for cod. Captain came back on the radio and told him to stop cuz illegal, buddy answered back “ya can’t tell a Newfie not to fish b’y). Anyways we had fresh cod for supper. Another time we built a lobster trap and caught 36 lobsters in port. We had to wait for security to be otherwise occupied when we pulled that trap up. We ate lobster for days after that! Steak and lobster, lobster eggs Benedict, lobster chowder... damn that was good times!

  • Like 3
  • Haha 2
Link to comment
Share on other sites

Haven’t seen you sail by Madison lately ? Go(we) down to township park with the wife to eat lunch .Observe the lake traffic. .

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...