SoCal Jet Boats

Tech Talk => Projects => Topic started by: rhay916 on June 28, 2014, 10:56:26 AM

Title: How do you guys install your motor?
Post by: rhay916 on June 28, 2014, 10:56:26 AM

I'm installing a bbc in a hull with all new stringers and using a four point motor mount. So I'm wondering what degree should I set the motor and have the driveline at?
Thanks


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Title: Re: How do you guys install your motor?
Post by: rhay916 on June 28, 2014, 05:50:56 PM

Bump
Need help trying to get this motor in this weekend. Want to do it right the first time
Thanks


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Title: Re: How do you guys install your motor?
Post by: GlassCutter on June 28, 2014, 08:42:15 PM

I wanna say 3 degrees but I've been drinking and I wouldn't take my advice about mechanical stuff anyway.  You probably shouldn't either.

Someone will chime in shortly I'm sure.   Now back to the bar  :thumbup:

Title: Re: How do you guys install your motor?
Post by: rhay916 on June 28, 2014, 08:47:54 PM

Thx bud been waiting for someone to chime in for me


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Title: Re: How do you guys install your motor?
Post by: Ridindirty89 on June 28, 2014, 08:54:08 PM

Where you from? There most likely someone on here that wouldn't mind helping you install it too. Just throwing it out there.

Title: Re: How do you guys install your motor?
Post by: rhay916 on June 28, 2014, 09:03:38 PM

Sacramento



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Title: Re: How do you guys install your motor?
Post by: JBASHAM on June 28, 2014, 09:12:14 PM

Quote from: rhay916 on June 28, 2014, 09:03:38 PM

Sacramento



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Search "driveline angle" on the search engine. Tons of threads about this.




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Title: Re: How do you guys install your motor?
Post by: rhay916 on June 28, 2014, 09:23:47 PM

Thx that was the key word I needed



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Title: Re: How do you guys install your motor?
Post by: 74hondo on June 28, 2014, 09:23:58 PM

How I did mine. Was have the drive line in as close to perfect alignment with the pump shaft and angle. Then I lowered the motor just a tad to get the angle on the H bar. The angle I was told is .5 to 4 degrees. I got close to 1 degree.

Title: Re: How do you guys install your motor?
Post by: rhay916 on June 28, 2014, 09:28:29 PM

Sweet, I'm gonna install it tomorrow


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Title: Re: How do you guys install your motor?
Post by: jyeager on June 28, 2014, 09:29:13 PM

Depending on your intake angle. I would either go with 3.5 or 4.5 to 5* I always put about .5 degrees on my drive lines.


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Title: Re: How do you guys install your motor?
Post by: TrollerDave on June 28, 2014, 11:07:58 PM

How do you go about finding the angles?

Digital level on the intake, and then where else do you measure for the motor?

I think i also read where you want a little angle in the drive shaft so the crank and pump shaft are not perfectly aligned? Is that right?

Quote from: JBASHAM on June 28, 2014, 09:12:14 PM

Search "driveline angle" on the search engine. Tons of threads about this.

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I did that and got "0" results. I know it's been discussed before.

Title: How do you guys install your motor?
Post by: jyeager on June 28, 2014, 11:17:30 PM

Quote from: TrollerDave on June 28, 2014, 11:07:58 PM

How do you go about finding the angles?

Digital level on the intake, and then where else do you measure for the motor?

I think i also read where you want a little angle in the drive shaft so the crank and pump shaft are not perfectly aligned? Is that right?

I did that and got "0" results. I know it's been discussed before.

First I make sure it's lined up with my jig.
Yes I use a digital angle finder. Well when I did it on each boat I zeroed out my angle finder on the keel. Put it on the jet intake, found that angle. Then dropped the motor in with the angle finder on top of the intake. Make your adjustments till you get how much angle you want in your drive line. Having a rail kit makes this much more easy.

My tunnel dragster intake went in at 5.2 degrees and the motor is close to 6
The brown boat is at 4.1 and the motor is at 4.6. Plenty of angle in there.


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Title: Re: How do you guys install your motor?
Post by: Your Mom on June 29, 2014, 06:36:33 AM

.5 - 3 degrees on driveline an make sure your crank shaft is parallel to pump shaft.

Title: Re: How do you guys install your motor?
Post by: bronco1 on June 29, 2014, 07:19:44 AM

You want no less the 3 degrees and reasoning for this is deceleration so you dont starve the oil pump