Winter Refurb on the 89

[TRBenj]

RE: Re: RE: stock vs. acme 422

Gotcha. I also forgot to answer your question about the advantages of a new prop. Yes, potentially all of the above. The new Acme 3-blades will offer superior holeshot, midrange acceleration, speedholding, smoothness, and possibly increase top end compared to the stock prop youve got now. What numbers are you getting for performance now (WOT RPM vs. speed)?

In short, its the best thing you can do to improve the way your boat performs. A new prop was the first of many upgrades that Ive done, and that still holds true.

[AirTool]

Re: RE: stock vs. acme 422

Youre correct that there is no such thing as an Acme 1422- but you'll notice that he said 1442, ...

Yea. Now 1442 but started 1422. Good catch.
Sorry Travis.

Well...will we ever figure out which tranny he has and if it is an oddball 89 with a 1:1?

AirTool

[Chris4x4Gill2]

RE: Re: RE: stock vs. acme 422

How do you tell? I thought all of the 89's had the 1.23?

as for current performance, I believe WOT was around 42mph at 4600rpm. For some reason I think i am wrong slightly on the rpm but thats what I remember right now. I do remember that it was running 42 mph vs 47mph for my friends '82 nautique at roughly the same rpm

[TravisFling]

RE: Re: RE: stock vs. acme 422

Not all of them, there's a few with the 1.1. I think the easiest way to tell is that the engine needs to be tilted to accomodate the 1.1. I might be wrong but someone will chime in, I'm certain. If you have the 1.1 your engine wouldn't sit flush with the floor of the boat, but would be tilted up in the front, down in the back. It's not terribly common.

[Chris4x4Gill2]

RE: Re: RE: stock vs. acme 422

engines level in mine, but I would like to know for sure. I guess i'd have to get someone to run the hull ID number to be positive

[Hollywood]

RE: Re: RE: stock vs. acme 422

Or just read the tag on the transmission. Does your engine spin opposite rotation of your prop?

[TRBenj]

RE: Re: RE: stock vs. acme 422

Ive never seen or heard of a '89 with a 1:1, but that doesnt mean they dont exist. I have seen Ski Nautique "Standards" with the RH 351 and 1:1, but they only made those from 93-94.

Your engine serial number, tranny number or a picture would straighten this all out.

Confirm those WOT numbers the next time you get a chance- a GPS would be helpful as the speedos arent always accurate.

[Chris4x4Gill2]

RE: Re: RE: stock vs. acme 422

speeds are from GPS, just the RPM is what I cant remember for sure.

what exactly would i need to get a picture of for you guys to tell?

[Chris4x4Gill2]

Engine Serial Number

[TRBenj]

Youve got the 1.23. The 2nd digit (L) indicates the engine's direction of rotation. Lefty's use the 1.23, Righty's used the 1:1.

42 GPS is on the slow side. If youre getting 4600 RPM, thats about right- and you would likely benefit quite a bit from a prop change. If its actually lower (4400 or below) then you may need a tune up... but either way, a new Acme would be a big upgrade.

[AirTool]

He has a RH prop which is the same as my 470 / 422. My 06 1:1.23 has a tag that says made in Italy and has the ratio stamped on it. I've never looked to see which way my engine spins but will look next time I'm in it.

On the engine, which way is LH and RH when looking at either the water pump or drive end?

[TRBenj]

He has a RH prop which is the same as my 470 / 422. My 06 1:1.23 has a tag that says made in Italy and has the ratio stamped on it. I've never looked to see which way my engine spins but will look next time I'm in it.

On the engine, which way is LH and RH when looking at either the water pump or drive end?

Of course he does- all direct drive Correct Crafts have spun RH props dating back to the early 60's (and earlier). The 1.23 reverses the direction of the engine, allowing the use of a LH (standard automotive rotation) engine mated to the same RH prop. Prior to the debut of this tranny, CC used RH (reverse rotation) engines mated to 1:1 trannies to turn the RH prop.

Marine engine rotation is interpreted as the direction of rotation as viewed from the REAR of the motor. A RH engine will spin clockwise when viewed from the rear, counterclockwise for a LH. In other words, when viewed from the front, the pulleys spin counterclockwise on a lefty, and vice versa for a righty.

[Chris4x4Gill2]

Thanks for the info guys, guess a new prop is going on my wish list, maybe I'll have one in time for memorial day next year. And I do think it needs a tune up.

[Chris4x4Gill2]

Got everything done for the winter. She is put away in the barn with her new cover. Wetsanded and waxed, carpet cleaned, vinyl rubbed down with 303, wniterized, new pitot pickups, new bow light, new rub rail insert and new stereo installed. Only other thing is i still need to build boxes for the 6.5's but that wil come after hunting season is over.

[rosconole]

Some places will give you some trade in $ on your prop if its not too banged up, i just kept my original OJ for a spare since I go to some remote places. I will swear by the ACME prop after switching , wow what a difference...even one of the chics in the boat noticed the difference. Crutchfield or onlinecarstereo.com has boxes for 6.5"s i was thinking about getting a couple when i order up a ear bleeding amp and sub.