91 Excel, reverse rotation engine?

89 is the first year Correct Craft went to standard rotation engines.

Jeff, V drive footers are in fact reverse rotation engines. The gear reduction of the V drive is actually a double reduction so it spins the shaft the same direction as the crankshaft unlike the 1.23 DD boats which reverse the shaft rotation in relation to the engine.

The tell of that is to pull the timing cover and look for a gear to gear camshaft drive. If the gear drive is present that is reverse rotation. If the gear drive isn't present it is a standard rotation engine.

Yeahhhhhh, I was thinking footer in my head instead Excel. Regardless the SBF would be reverse rotation as well.

TX Foilhead wrote: Shouldn't need a rebuild, but if you just want to play with the motor I would do the CHI upgrade after I did a compression and leak down test just to be sure there's no issues. With a regular 240 motor that upgrade will make a very noticable difference in a boat that's already sluggish out of the hole.

+1

That , plus a big Trim Tab! hahahahaha...

BTW- Love the Cranberry and Gray!

kapla wrote: Gt40P heads aluminum intake and a cam is the most commmon upgrade to these engines and will easily put you in the 310Hp...

Thanks Kapla and all the info. Definitely going with the GT40P heads. Is there a consensus on the cam and intake?

Joe, I guess the way the gear reduction in those V drives work is they don't reverse the engine rotation like a 1.23 does. Mark and I were curious and got to checking numbers on pre 07 V drive boats with RH rotation propellers. They all had serial numbers for RH rotation engines. Mark's footer has a gear camshaft drive which as you know means a reverse rotation Big Block.

Well if your attempt was to confuse me even further... success!   

Correct me if Im wrong- wasnt there a v-drive change during the Excel years? Early boats got the 1.25:1 and later ones the 1.5:1 maybe? Perhaps only the earlier box required a RH engine to swing a RH prop?

No way was CC using RH engines in their v-drives until ~2011 when they started using LH props. I believe that change coincided with a v-drive change as well.

Somebody has to know the complete story.

Mine is an early 93, RR 351, GT40's are SR so the change would most likely be in the Super Sports in 95.

phatsat67 wrote: I guess the only reverse rotation V drives ever used were the 91-94 Excel/Footer.

C'mon Zach, dont guess- you have the parts books, right? Check late '93, '94 and '95... see if you can figure out when the change occurred. I vaguely remember someone saying it changed mid-cycle on the Excels.

backfoot100 wrote: It's obvious the OP is still confused understandably. FWIW, as long as the boat is still whole, this should be easy. Go and turn the thing over while someone is looking at the front of the engine. That means to actually be looking at the front of the crankshft pulley. Forget which way the engine is facing. Look at which direction the crank pulley spins. If it turns over CW it's standard, CCW is reverse. Let us know what you find out.

I can do this and will... For some silly reason I thought this would an easy question

Ive seen pictures of Swedish's BFN/Excel and it has the earlier (91-93) gel scheme. I just asked Joe and he cant remember which v-drive it had, but the prop he mentioned wanting to try back in 2011 was big (13.5x19), which makes me think it has a 1.5:1 mated to a LH engine (just like the later v-drives).

PCM still offers the 305/350 motors (Excal included) in RH last I checked- just not in Correct Crafts as far as Im aware. 6.0L has never been offered in anything but LH. So thats no clue, other than the fact that CC had gone to all LH engines by 2003 (but I think it was much earlier than that).

My official guess is that CC switched from the 1.25:1 and RH engines to the 1.5:1 and LH engines in mid '93. Total guess, cause I dont know jack about Excels! I'd say its a safe bet that the original poster in this thread with a '91 has a RH engine and 1.25. Like Steve implied, the engine tag will confirm that- assuming its there and nothing has been changed.

TX Foilhead wrote: Mine is an early 93, RR 351, GT40's are SR so the change would most likely be in the Super Sports in 95.

Here's the tag from a 95 SS

We're getting closer! Where's the '94 v-drive representatives?

Can't count on Zach to help.............(He's only got about a billion boats under cover at his place.....)