Max rpm 2800

Geoff R · Post by **Geoff R** » Sat Mar 26, 2011 9:11 am

Captin Ross

Primary .101 sec.086 rod .061 x .053 economy
Primary .101 sec .101 rod .062 x .052 4000 rpm

calibrated for economy it will not just hop out onto plane. But She will do it even after the admiral has packed for two weeks away but it can be a struggle

Good luck
Geoff

rossjo · Post by **rossjo** » Sat Mar 26, 2011 9:40 am

Thanks Geoff! You've got V-Drives, right?

Larry - got these #'s? Want to rebuild your carbs Monday? or is Wed better (after the dinner cruise)?

plansea · Post by **plansea** » Sat Mar 26, 2011 11:03 am

I hope i dont double post i lost my last post to cyber space. Thanx Geoff. You mentioned parasitic loads in an earlier post, don't think i have ever heard that term.. I checked my cutlass bearings last fall during haul-out,and i think my packing is right. Is there anything else i need to check?Again thanx ,Ross for all your help and friendship. It really matters! I got the carb info, lets shoot for wed. Larry

rossjo · Post by **rossjo** » Sat Mar 26, 2011 11:50 am

Goeff - when the engines are idling, the shafts rotate slightly, so I doubt if there is any drag whatsoever, but a good thought!

Wed. it is! The NAPA on 17 may have those Marine carb kits ...

Geoff R · Post by **Geoff R** » Sat Mar 26, 2011 1:16 pm

I once got the # 1 & 3 plug wires mixed up on one engine when replacing the plugs . Ran great ! idled smooth as silk, no apparent miss. But would not get up on plane. Its a big step gettin up for the tri cabins. The hole behind U at 15 kts is about 5 ft deep.
Also if someone messed with the props B 4 Larry got it they are that close on power gettin up could be a problem

again good luck
Geoff

rossjo · Post by **rossjo** » Sat Mar 26, 2011 4:50 pm

We've both been through the plugs wires, distributor, module, etc. "84 times" (in Larry's words), so go dto go there, but that can really mix you up if it happens.

Once we know the carbs are good, we'll take on the props.

Geoff R · Post by **Geoff R** » Sat Mar 26, 2011 8:52 pm

rossjo wrote:We've both been through the plugs wires, distributor, module, etc. "84 times" (in Larry's words), so go dto go there, but that can really mix you up if it happens.

Once we know the carbs are good, we'll take on the props.

I haven,t had the pleasure of working on an engine under the cabin floor. Wat,s it like? pretty roomy

rossjo · Post by **rossjo** » Sun Mar 27, 2011 8:36 am

Easy on mine - inline 6 cylinder diesel provides a lot of room.

Larry's V8's are wider, and the tanks on the outside make it impossible to get to the starter on the port motor for example.

prowlersfish · Post by **prowlersfish** » Sun Mar 27, 2011 12:19 pm

rossjo wrote:Easy on mine - inline 6 cylinder diesel provides a lot of room.

Larry's V8's are wider, and the tanks on the outside make it impossible to get to the starter on the port motor for example.

inline 6 cylinder diesel provides a lot of room ??? What ? There is a lot more room with a big block IMO , Maybe you don't have saddle tanks ?? on yours ( that would make a big difference I am sure

you should try to do my starboard stater as you can't see it , have do it by feel , the port water pump is fun too .

I would bet the cummins marine 6BTA with full marine trim is every bit as wide as the big block and a lot longer too
............................................................................................................

UPDATE the 8.1 crusader is listed as 32.8 wide and I am sure its wider then the 383/400 B block

the Cummins 6BTA is listed as 32.15" almost the same '

Now The Cummins 6BT is only 28" and I believe this is what Ross has so he would have more room and if no saddle tanks would be a big plus

Why the big difference between the 6BTA and the 6BT even tought the share the same block and head castings ? Its the add ons like after coolers and bigger heat exchangers turbo and so forth .

rossjo · Post by **rossjo** » Sun Mar 27, 2011 4:22 pm

Well ... I have 6BTAs (listed in my signature) and have a lot more room than Larry's big block V8. The After coolers don't add any width.

I do not have saddle tanks.

I'm not a thin man, but I can crawl along the outsides of my motors to work on pumps, heat exchanger, starters, etc.

Geoff R · Post by **Geoff R** » Sun Mar 27, 2011 6:07 pm

Wow !
This sounds like the difference Between fitting your elbow in without shredding it or not .
Saddle tanks and engines. Did they shoehorn a genset in there too ?

prowlersfish · Post by **prowlersfish** » Sun Mar 27, 2011 6:10 pm

I have between 4-6 " from my starboard heat ex. to my saddle tank just enough to squeeze the starter through and its tight. the port side is not much better.

Sorry Ross I was thinking yours was a 210 or 220 hp not a 250 ?? sorry .Is yours a Cummins marine set up or a conversion by some on else ? I was thinking of photos that were posted a while back , maybe some one else.

prowlersfish · Post by **prowlersfish** » Sun Mar 27, 2011 6:30 pm

Geoff R wrote:Wow !
This sounds like the difference Between fitting your elbow in without shredding it or not .
Saddle tanks and engines. Did they shoehorn a genset in there too ?

They put it under the aft deck on the F36 , and shoe horn it on the F32 I think

The sadle tanks on the F36 do tighen things up for sure

bcritical · Post by **bcritical** » Wed Aug 05, 2015 2:52 pm

How did this turn out did you fix it with fuel or props or something else. I have a similar problem only getting to 3300 but get full range in neutral.

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Max rpm 2800

Re: Max rpm 2800