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1lastweekend reacted to Scott06's post in the thread 1981 MC-1 driveshaft reinstall into upper housing- any tricks to this? with Like.

amazing what a diff it makes with just a bit of heat. You can do the same getting bearings on shafts etc by heating them. We have a...

Apr 6, 2026
1lastweekend reacted to kenny nunez's post in the thread 1981 MC-1 driveshaft reinstall into upper housing- any tricks to this? with Like.

Now you learned a new trick! Good job!

Apr 6, 2026
1lastweekend replied to the thread 1981 Rinker with Mercruiser 120HP, In what order should I do these repairs??.

Thanks, I hit the inside of the housing with a propane torch for 60 seconds and the whole thing slid right in!

Apr 5, 2026
1lastweekend replied to the thread 1981 MC-1 driveshaft reinstall into upper housing- any tricks to this?.

Yes!!! Got it in, just hit the inside of the housing with a torch for 60 seconds or so!

Apr 5, 2026
1lastweekend replied to the thread 1981 MC-1 driveshaft reinstall into upper housing- any tricks to this?.

Thanks, I will try that too if the clamp doesn't help...Did you use a heat gun or a torch? So you flipped the housing on its back and...

Apr 5, 2026
1lastweekend reacted to kenny nunez's post in the thread 1981 MC-1 driveshaft reinstall into upper housing- any tricks to this? with Like.

I have had to apply heat to the housings several times. With the housing positioned so that gravity will help give heat a shot. Just be...

Apr 5, 2026
1lastweekend reacted to nola mike's post in the thread 1981 Rinker with Mercruiser 120HP, In what order should I do these repairs?? with Like.

Not a press fit but can be a bit fiddly. If you're not square going in I could see it jamming if you force it.

Apr 5, 2026
1lastweekend reacted to alldodge's post in the thread 1981 MC-1 driveshaft reinstall into upper housing- any tricks to this? with Like.

Manual says to use a hose clamp. If the sleeve is wider it may not have the bearings it correct position

Apr 5, 2026
1lastweekend replied to the thread 1981 MC-1 driveshaft reinstall into upper housing- any tricks to this?.

Yeah I hope not, but I set up this clamp and rubber pieces to check...My calipers dont go down far enough into the housing to measure...
Apr 5, 2026
1lastweekend reacted to alldodge's post in the thread 1981 MC-1 driveshaft reinstall into upper housing- any tricks to this? with Like.

Take just the race and see if it fits, hope the housing isn't warped

Apr 5, 2026
1lastweekend replied to the thread 1981 MC-1 driveshaft reinstall into upper housing- any tricks to this?.

Thanks, I have a couple of extra washers so maybe I will loosen up the nut and retorque with a hose clamp…the only thing is the leading...

Apr 5, 2026
1lastweekend posted the thread 1981 MC-1 driveshaft reinstall into upper housing- any tricks to this? in Mercury MerCruiser Sterndrives & Engines.

I just replaced the 2 seals in my upper housing, and also the seal on my driveshaft yoke, and now I am ready to reinstall the driveshaft...
Apr 4, 2026
1lastweekend replied to the thread 1981 Rinker with Mercruiser 120HP, In what order should I do these repairs??.

Thanks all for the advice so far! I have run into an issue I cant quite figure out...After replacing the oil seal on the upper...
Mar 31, 2026
1lastweekend replied to the thread 1981 Rinker with Mercruiser 120HP, In what order should I do these repairs??.

Great that makes sense!

Mar 24, 2026
1lastweekend reacted to Pmt133's post in the thread 1981 Rinker with Mercruiser 120HP, In what order should I do these repairs?? with Like.

48 is the oil seal, 49 the rubber shift shaft bushing and 50 is the stainless washer. 49 is a rubber washer where 48 is an actual lip...

Mar 24, 2026

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