Hi everyone, I have recently purchased a Salem ski boat with a 350chev/Aq280pt package as a project. Totally new to boats so just learning along the way.
I have read over a lot of post which has given me a rough idea but was hoping someone could clarify some more specific questions.
I vacuum/pressure tested the drive after finding the oil had water in it. I found that the lip seal on the input shaft was leaking and it appeared that the boat had been used with a torn bellows. Fortunately it has only been used in fresh water.
After removing the outdrive and the double bearing box I have noticed some issues I would like to fix while it is apart.
The pds shaft has sealed bearings and the grease has been contaminated by the open bellows. I plan on removing the engine to remove the shaft so I can clean it out and start fresh with new bearings, seals and grease. I have found the information in regards to the correct parts/ installation in other forums. Can I do this with the bell housing still in the transom shield?
The universal joint crosses feel a bit stiff so I am also going to replace them while it is apart. I have seen the Spicer 5-1306x recommended but they seem to be an obsolete part. So I was planning on using another 7260 series cross with the same dimensions the spicer 5-789x, it just isn’t greaseable but the current ones aren’t anyway. Is there anything I should be weary of when finding a replacement, also are the greaseable ones suitable (strength wise) for the V8 engine?
When I removed the clamping collar I noticed the four bolts didn’t have any washers, the parts breakdown shows them there. Should I get some to use when reassembling?
While the double bearing box is out I plan on inspecting/replacing the bearings. I think I have read they are 30207 and 31307 is this correct?
Reading the manual it gives a prestressed value for the assembly (2.5-5Nm for used bearings, I assume that Nm is actually just N). My understanding is that the value is checked with a spring scale to determine the amount of force required to initially turn the bearings from a stationary position. Is this correct? The current assembly had next to no resistance.
I don’t have all the Volvo Penta special tools referenced in the manual but assume I can just use some universal drifts and pipe to press the assembly apart, is there anything I should be cautious of when doing so?
Finally the bolt that holds the input gear to the input shaft is obsolete from Volvo but the manual states it needs to be replaced. It is 7/16 unf and judging buy the torque value it is grade 5. I’m unable find the socket head screw in grade 5.... has anyone used a higher grade or do the later model drives run the same size bolt as I can still buy them.
Sorry for all the questions, any help would be appreciated!
Thanks,
Sam
I have read over a lot of post which has given me a rough idea but was hoping someone could clarify some more specific questions.
I vacuum/pressure tested the drive after finding the oil had water in it. I found that the lip seal on the input shaft was leaking and it appeared that the boat had been used with a torn bellows. Fortunately it has only been used in fresh water.
After removing the outdrive and the double bearing box I have noticed some issues I would like to fix while it is apart.
The pds shaft has sealed bearings and the grease has been contaminated by the open bellows. I plan on removing the engine to remove the shaft so I can clean it out and start fresh with new bearings, seals and grease. I have found the information in regards to the correct parts/ installation in other forums. Can I do this with the bell housing still in the transom shield?
The universal joint crosses feel a bit stiff so I am also going to replace them while it is apart. I have seen the Spicer 5-1306x recommended but they seem to be an obsolete part. So I was planning on using another 7260 series cross with the same dimensions the spicer 5-789x, it just isn’t greaseable but the current ones aren’t anyway. Is there anything I should be weary of when finding a replacement, also are the greaseable ones suitable (strength wise) for the V8 engine?
When I removed the clamping collar I noticed the four bolts didn’t have any washers, the parts breakdown shows them there. Should I get some to use when reassembling?
While the double bearing box is out I plan on inspecting/replacing the bearings. I think I have read they are 30207 and 31307 is this correct?
Reading the manual it gives a prestressed value for the assembly (2.5-5Nm for used bearings, I assume that Nm is actually just N). My understanding is that the value is checked with a spring scale to determine the amount of force required to initially turn the bearings from a stationary position. Is this correct? The current assembly had next to no resistance.
I don’t have all the Volvo Penta special tools referenced in the manual but assume I can just use some universal drifts and pipe to press the assembly apart, is there anything I should be cautious of when doing so?
Finally the bolt that holds the input gear to the input shaft is obsolete from Volvo but the manual states it needs to be replaced. It is 7/16 unf and judging buy the torque value it is grade 5. I’m unable find the socket head screw in grade 5.... has anyone used a higher grade or do the later model drives run the same size bolt as I can still buy them.
Sorry for all the questions, any help would be appreciated!
Thanks,
Sam