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Old 07-21-2016, 01:41 PM   #1
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Pictures of Er 77,78 mainship 34 mk1

Does anyone have any pictures of Engine room a and different angles of the engine. Looking for what might be missing from mine and maybe ways I could improve on it such as deck plates down alongside the engine to protect transducers and make it easier to stand, rerouting of exhaust flange so it doesnt stick up so obnoxiously etc etc.
If you have some please post them. ALSO any pictures of the raw water pump and strainer assembly, battery layout. Looking to improve.
Here is what I'm working with now. Its a mess.
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Old 07-21-2016, 01:52 PM   #2
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If you are talking about the riser / elbow just before the water injection /mixer you want that as high as humanly and physically possible to prevent backflooding, it is good design and best practice as it is.

Your Batteries are where the generator would have been located, good place for the Batteries if you don't plan a genset.

The Racors on the aft bulkhead is where I have seen them on all I, II and II Mainships that I have been aboard, seems to be a good place for them as that's where the fuel lines from the saddle tanks naturally congregate




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rerouting of exhaust flange so it doesnt stick up so obnoxiously etc etc.
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Old 07-21-2016, 02:45 PM   #3
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Quote:
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If you are talking about the riser / elbow just before the water injection /mixer you want that as high as humanly and physically possible to prevent backflooding, it is good design and best practice as it is.

Your Batteries are where the generator would have been located, good place for the Batteries if you don't plan a genset.

The Racors on the aft bulkhead is where I have seen them on all I, II and II Mainships that I have been aboard, seems to be a good place for them as that's where the fuel lines from the saddle tanks naturally congregate

I Hadn't considered back flooding, very glad you brought that up. My racors are on the back and happy with them there. The battery mess I'm considering moving the engine battery up underneath the starboard and house to the port and making a cover for that hole over the shaft. I'm a pretty big guy and need room to maneuver . Dancing over batteries has been bumming me out. Just looking for other ideas to incorporate if its an improvement. Thank you Keys for the back flooding awareness. First boat I've ever been on that has a wet exhaust. All of them before had a stack.
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Old 07-21-2016, 09:38 PM   #4
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This is my repowered 1978. Can take more if there is anything specific you're interested in.

I have a bank of four batteries on the starboard side just aft of the helm with an access port.

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Old 07-21-2016, 10:12 PM   #5
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Nice looking ER. Doesn't look like chaos. I do see something I'm curious about. Is that like a walker air sep on your turbo? I'd love to keep those gases contained in the engine. They make everything dingy. I've already gone thorough once with degreaser and a pressure washer. About to do it again with more focus on the hull, bulkheads and stringers since i just finally got all the oil in the bilge mopped up. That project took 20 full sized absorbents.
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Old 07-21-2016, 10:38 PM   #6
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Nice looking ER. Doesn't look like chaos. I do see something I'm curious about. Is that like a walker air sep on your turbo? I'd love to keep those gases contained in the engine.
It's a Racor unit, similar to the Walker Airsep.
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Old 07-22-2016, 08:55 AM   #7
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The raw water strainer is exactly where mine was on my 78. When I repowered I relocated it on the starboard side of the engine (mid way) and ran the hose under the engine.
That got it out of my way for maintenance, etc.
I also ditched the 8D batteries and installed 2 group 27s (you could use grp 31s), one on each side of the engine forward just outside of the stringers. I built shelves for them out of plywood.
Again made for more body space.
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Old 07-22-2016, 09:29 AM   #8
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perhaps I am missing something but that exhaust water inlet seems in exactly the wrong place, on the engine side of the riser.
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Old 07-22-2016, 09:32 AM   #9
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Originally Posted by Alaskasbear View Post
ALSO any pictures of the raw water pump and strainer assembly, battery layout. Looking to improve.

Don't have any pics, but I think I remember having only a single 8D battery, located starboard of the engine, roughly underneath where one would stand at the lower helm. We had a genset, where your batteries are , and only once needed to run the genset/charger for a while before we could start the main engine. My fault, poor DC load management that day.

IF (IF!) a set of four (at least) 6V golf cart batteries -- series parallel, roughly 440 Ah -- would start your engine, believe I'd suggest you consider that as an option. Each individual battery lighter than a single 8D.

If you don't plan a genset, and even larger bank of GCs in the lazarette might be useful.

Or another configuration for consideration might be a single G31 start battery, maybe up near the engine, and a boatload of GCs in the lazarette for house loads.


Jeff's ER looks longer than what I remember about ours. And again, our genset was in the lazarette.

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Old 07-22-2016, 09:34 AM   #10
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Originally Posted by Jeff F View Post
This is my repowered 1978. Can take more if there is anything specific you're interested in.

I have a bank of four batteries on the starboard side just aft of the helm with an access port.

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These spotless ERs make me green with envy.
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Old 07-22-2016, 10:13 AM   #11
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I had a Walker Airsep, and I loved how it kept the ER clean. I would highly recommend either a Walker or similar to anyone with a vented crankcase.

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Old 07-22-2016, 10:34 AM   #12
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Jeff's ER looks longer than what I remember about ours. And again, our genset was in the lazarette.

-Chris
What generation was yours? I was thinking the same thing until I remembered his is a first generation.
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Old 07-22-2016, 11:10 AM   #13
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What generation was yours? I was thinking the same thing until I remembered his is a first generation.

Ours was a III, '87.

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Old 07-26-2016, 09:29 PM   #14
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Quote:
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perhaps I am missing something but that exhaust water inlet seems in exactly the wrong place, on the engine side of the riser.
I'm not sure what you mean. That is the stock exhaust riser i thought. Is the water inlet supposed to be on the other side of the hump?
OR is it on backwards?
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Old 07-26-2016, 09:41 PM   #15
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Think I'm going to keep.the 8ds and move one to each side.to allow room for now and possibly a future genset reinstall. Wife and I talked about the 6 hatches and came up with the idea to add.brass piano hinges for every 2 sets narrowing it down to 3. And yes walker airsep or racor unit is going to be added. Thank you everyone for your responses. Raised questions I hadn't even considered. I am really curious about that exhaust riser though. Foing to try and find ot in the manual.
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Old 07-27-2016, 04:56 AM   #16
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Re the exhaust riser, take a look at this conversation on this topic:

Turbo failure and exhaust water backup solutions

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Old 07-27-2016, 11:44 AM   #17
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After doing some research i believe Bayview is correct and the inlet is on the wrong side of the riser. Not only is it on the wrong side it is injecting towards the engine leaving me to believe that the PO put it on backwards after changing the exhaust hose. Here is the picture of mine and also a picture i found on the web.(Don't mind the wife,she likes doing starters. Always has.) Someone correct me if I'm wrong or also chime in if I'm right in my assessment. Thank you Bayview for pointing this out.
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Old 07-27-2016, 11:47 AM   #18
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Quote:
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Re the exhaust riser, take a look at this conversation on this topic:

Turbo failure and exhaust water backup solutions


Excellent thread that convinced me to do some changes. Thanks for sharing that. I'm a whole lot more educated than i was yesterday and added like 4 more things on my boat to-do list.
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Old 07-27-2016, 02:13 PM   #19
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At a minimum, you should take the exhaust riser off so you can see how the cooling water is injected. There may be some inner tubing that carries the injected water to the top of the elbow in such a way that the water is really not combined with the exhaust gases where it would appear. In other words, look inside closely before you just turn it around.
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Old 07-27-2016, 02:40 PM   #20
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Really good point here:

Quote:
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There may be some inner tubing that carries the injected water to the top of the elbow in such a way that the water is really not combined with the exhaust gases where it would appear. In other words, look inside closely before you just turn it around.
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