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Old 02-20-2017
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Default Lower unit bolts torque specs

Hello, first post here. Getting ready to do a water pump replacement on a 2008 V150TLR and was wanting to know what the torque specs are for the lower unit bolts. Any help greatly appreciated.

Thanks
Ron
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Old 02-20-2017
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I don't have the V motor specs in my limited library. My F150 is 34-35 lb ft. I noticed the Z150 is 29.5. Don't go crazy on the bolt for the trim tab, 30 lb ft will often snap the threaded portion off of it. I go about 25 for that. Maybe Boscoe can add specific info for your engine.
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Old 02-21-2017
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Quote:
Originally Posted by pstephens46 View Post
I don't have the V motor specs in my limited library. My F150 is 34-35 lb ft. I noticed the Z150 is 29.5. Don't go crazy on the bolt for the trim tab, 30 lb ft will often snap the threaded portion off of it. I go about 25 for that. Maybe Boscoe can add specific info for your engine.
29FT LB

Here ya go. This is from a 2004 V150, same lower unit as your 2008. Don't see why it would be any different?

[IMG]V150.LU.Torque by Charles Postis, on Flickr[/IMG]
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Chuck,
1997 Mako 191 w/2001 Yamaha SX150 TXRZ Pushing Her
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Old 02-21-2017
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Thanks for the information, that chart helps out greatly!!
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Old 08-12-2017
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Default Lower Unit Torgue Specs

I have a 1991 Yamaha ProV150LD does anyone know the lower unit bolts torque specs?
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Old 08-12-2017
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Quote:
Originally Posted by rcfawjr93 View Post
I have a 1991 Yamaha ProV150LD does anyone know the lower unit bolts torque specs?
Doesn't have to be that precise. Go with 30 lb ft.

You will be fine......
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Old 08-12-2017
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Join Date: Dec 1969
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Quote:
Originally Posted by pstephens46 View Post
Doesn't have to be that precise. Go with 30 lb ft.

You will be fine......
I totally agree!...I don't even own a torque wrench and probably won't get one until the time comes to torque the cylinder head bolts after their removal...which I have no reason or plans to do any time soon!...For the smaller bolts I like a one-handed, 1/4 inch drive ratchet....never broke a bolt yet...knock on wood!
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