Boat rotation/ top speed

[Kurt1080]

hello , I have a 1995 4 winns sundowner 5.0l Volvo penta with the sx outdrive , I’ve had a few mechanics fixing this up more like helpful friends , when I bought it , the boat it had a Rh prop on it 3 blade 14 1/2 - 19 pitch , but my buddies starting replacing fuel pressure pumps and just replacing coils and alternator/ battery and other stuff , long story short I took it out on the water , I pushed the throttle down it went in reverse, and reverse was forward , and they told me just to put a LH prop on the boat , so I did , and I can only go about 20mph wide open throttle with just 3-4 people on board and when I pull a single tuber it’s hard to plain out , even with the throttle all the way open , can anyone give me any advice here I appreciate it thank you , if anyone in this group has the same boat , what is the prop you have on yours ?

 

[Nashville]

Forget the LH prop, and fix what’s incorrect. Either the shift cable is installed wrong at the helm/shift lever, or the shift actuator on the drive is installed upside down (180-off). The fuel pump, coil, alternator and battery don’t have anything to do with this. Suggest having them list the “other stuff” that was done. If real “creative”, they may have put the linkage on wrong but that takes some real doing.

 

[Nashville]

Forget the LH prop, and fix what’s incorrect and use the correct prop. Either the shift cable is installed wrong at the helm/shift lever, or the shift actuator on the drive is installed upside down (180-off). The fuel pump, coil, alternator and battery don’t have anything to do with this. Suggest having them list the “other stuff” that was done. If real “creative”, they may have put the linkage on wrong but that takes some real doing.

 

[Kurt1080]

Forget the LH prop, and fix what’s incorrect. Either the shift cable is installed wrong at the helm/shift lever, or the shift actuator on the drive is installed upside down (180-off). The fuel pump, coil, alternator and battery don’t have anything to do with this. Suggest having them list the “other stuff” that was done. If real “creative”, they may have put the linkage on wrong but that takes some real doing.

 

[Kurt1080]

Forget the LH prop, and fix what’s incorrect and use the correct prop. Either the shift cable is installed wrong at the helm/shift lever, or the shift actuator on the drive is installed upside down (180-off). The fuel pump, coil, alternator and battery don’t have anything to do with this. Suggest having them list the “other stuff” that was done. If real “creative”, they may have put the linkage on wrong but that takes some real doing.

They both claim they didn’t touch the throttle at the handle at all

 

[Kurt1080]

They both claim they didn’t touch the throttle at the handle at all

Would there be a different way to switch the linkage ?

 

[Nashville]

Would there be a different way to switch the linkage ?

If the throttle wasn’t touched, ask them if they removed the shift actuator (on the drive). If you can, post a picture. It’ll tell us a lot.

What you’re looking for is located under the cover that you see when kneeling in front of the drive. About eye level. Underneath is a cast part about two inches tall by two inches wide; there’s an arm with a stainless link attached on the left (if correctly installed and not butchered and forced on the right).

Is it safe to assume you ran the boat before and forward was forward, and this is not a new to you used boat that is being run for the first time?

 

[Kurt1080]

If the throttle wasn’t touched, ask them if they removed the shift actuator (on the drive). If you can, post a picture. It’ll tell us a lot.

What you’re looking for is located under the cover that you see when kneeling in front of the drive. About eye level. Underneath is a cast part about two inches tall by two inches wide; there’s an arm with a stainless link attached on the left (if correctly installed and not butchered and forced on the right).

Is it safe to assume you ran the boat before and forward was forward, and this is not a new to you used boat that is being run for the first time?

I’ll take some pictures tomorrow, and no , the first time I ran it , was after they were replacing stuff on the motor which at this point at the RH prop on it that came with the boat when I put it in the water

 

[Nashville]

I’ll take some pictures tomorrow, and no , the first time I ran it , was after they were replacing stuff on the motor which at this point at the RH prop on it that came with the boat when I put it in the water

Attached is a picture of what you are looking for. Without the serial number, can’t be positive which SX drive is installed, but they’re similar. Kneeling in front of the drive, remove the cover. Should be plastic, should be three screws. The linkage should be on the left, lever/bracket on the bottom and the cast “square” with the eccentric should have the half-circle/detent facing up (smiling). If installed 180-degrees out (half circle down, frowning), it shifts backwards.

Sorry, don’t understand the response. If the first time you operated this new to you used boat reverse caused forward movement, your buddies/mechanics likely didn’t cause and something happened with the previous owner. Perhaps a phone call to this person to clarify once you know what your buddies/mechanics did.

 

[Scott Danforth]

Im sure glad these are your friends. coils almost never need to be replaced. only 3 out of a million changed coils are actually bad. did they do any troubleshooting?

what else was replaced that didnt need to be replaced?

 

[Kurt1080]

Attached is a picture of what you are looking for. Without the serial number, can’t be positive which SX drive is installed, but they’re similar. Kneeling in front of the drive, remove the cover. Should be plastic, should be three screws. The linkage should be on the left, lever/bracket on the bottom and the cast “square” with the eccentric should have the half-circle/detent facing up (smiling). If installed 180-degrees out (half circle down, frowning), it shifts backwards.

Sorry, don’t understand the response. If the first time you operated this new to you used boat reverse caused forward movement, your buddies/mechanics likely didn’t cause and something happened with the previous owner. Perhaps a phone call to this person to clarify once you know what your buddies/mechanics did.

 

[Horigan]

That vertical link is installed incorrectly for your right hand prop. Take it off and flip so it is installed in the other hole on the shift actuator. That will correct your forward = reverse issue.

Your power issues are due to something else. You should be able to get over 40 mph at wide open throttle, near sea level.

 

[Kurt1080]

That vertical link is installed incorrectly for your right hand prop. Take it off and flip so it is installed in the other hole on the shift actuator. That will correct your forward = reverse issue.

Your power issues are due to something else. You should be able to get over 40 mph at wide open throttle, near sea level.

That vertical link is installed incorrectly for your right hand prop. Take it off and flip so it is installed in the other hole on the shift actuator. That will correct your forward = reverse issue.

Your power issues are due to something else. You should be able to get over 40 mph at wide open throttle, near sea level.

Is there anyway that the linkage is correct for this outdrive? Maybe saying that this outdrive was on a different boat before ? Or is the sx outdrive linkage always on the left side ? , thanks for the information

 

[Scott Danforth]

the location and actuation of the control stick is what determines what side of the shift arm at the trans the linkage is on.

 

[Horigan]

Is there anyway that the linkage is correct for this outdrive? Maybe saying that this outdrive was on a different boat before ? Or is the sx outdrive linkage always on the left side ? , thanks for the information

The drive could have been on a twin engine boat where one drive rotates the other direction going forward. This is done with a left hand prop and the linkage set up like yours. All the single right hand prop SX drives I've seen (not that many) have the link on the left.

 

[Kurt1080]

The drive could have been on a twin engine boat where one drive rotates the other direction going forward. This is done with a left hand prop and the linkage set up like yours. All the single right hand prop SX drives I've seen (not that many) have the link on the left.

I switched the linkage from the right to the left , it switched fine , I put a 3 blade 14.5 / 19 pitch Volvo penta right hand prop on it , put muffs on it ran fine in the driveway , then put it in the water , couldn’t plain out and with wide open throttle only hit 4000rpms but couldn’t generate any speed , but when the linkage was on the right with a left hand prop , I could eventually plain out but took some time like 5 minutes and the rpms could hit 5000 at wide open throttle, but couldn’t get over 20-24 mph

 

[dan02gt]

I switched the linkage from the right to the left , it switched fine , I put a 3 blade 14.5 / 19 pitch Volvo penta right hand prop on it , put muffs on it ran fine in the driveway , then put it in the water , couldn’t plain out and with wide open throttle only hit 4000rpms but couldn’t generate any speed , but when the linkage was on the right with a left hand prop , I could eventually plain out but took some time like 5 minutes and the rpms could hit 5000 at wide open throttle, but couldn’t get over 20-24 mph

So with the right hand prop, when you give it throttle the RPMs come up to 4000RPMs but the boat never gets out of the hole? It just sets there and chugs along at 4000RPMs?
You should be on plane and running in the upper 30s at 4000RPMs. Are you sure the hub is not blown out of the prop you are using causing it to slip?

 

[Kurt1080]

So with the right hand prop, when you give it throttle the RPMs come up to 4000RPMs but the boat never gets out of the hole? It just sets there and chugs along at 4000RPMs?
You should be on plane and running in the upper 30s at 4000RPMs. Are you sure the hub is not blown out of the prop you are using causing it to slip?

 

[Kurt1080]

So with the right hand prop, when you give it throttle the RPMs come up to 4000RPMs but the boat never gets out of the hole? It just sets there and chugs along at 4000RPMs?
You should be on plane and running in the upper 30s at 4000RPMs. Are you sure the hub is not blown out of the prop you are using causing it to slip?

Correct at 4000 rpms it’s just chugging, and I checked the prop and hub both are good , I turned the motor off put it in gear the hub only spins one way

 

[Scott Danforth]

did you adjust the shift linkage to make sure you are not burning up your cone clutches?