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Old 20-10-2008, 15:30   #1
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Hurth HBW 150 Rebuild

Hi, we just lost the front roller bearing on our 150. there seem to be none available in the US, so was thinking of buying used. Anyone know what are the alternatives that would fit and work. It is on a MOrgan 43 Catalina (lots of room in the compartment) with a Perkins 4108.

Has anyone rebuilt these, we are mechanics but haven't taken one of these apart. Is it doable?

thanks, Jay
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Old 20-10-2008, 15:41   #2
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ZF should list a replacement. If not. See if they will give you an SKF # for the bearing. Otherwise find a manual and pull it apart. Take the bearing to an industrial bearing supply. Like these guys
Atlantic Bearing & Drives
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Old 20-10-2008, 19:33   #3
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If you have rebuilt transmissions before with success you should be able to rebuild a Herth. There is some shimming involve in some of them so it would be wise to have a manual on your series.

Parts can be found here: Marine Transmission Parts, ZF and Hurth Marine Transmission Part Sales
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Old 20-10-2008, 19:43   #4
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Thanks, they look like a good source. I will call them tomorrow. looks like they have a manual as well as the bearings. (depending on the model) keep that info coming. many thanks,
Jay
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Old 20-10-2008, 22:46   #5
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Another great source of Bearings and Seals is Motion Industries......
I'll look for their webpage and post it

Duh-uh www.motionindustries.com
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Old 21-10-2008, 02:35   #6
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Hurth - ZF Support Documents:
http://zf-marine.com/ZF/Downloads/
http://zf-marine.com/ZFR/Support/ind...SC=1024:768:32

The old Hurth HBW 150" is now called the ZF 15 M, the HBW 150 A is now the ZF 15 MA, and the HBW 150 V is now the ZF 15 MIV.
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Old 21-10-2008, 11:36   #7
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These have been really great sources. Looks like MER will have everything we need. still checking around. they have a manual as well. really appreciate all the leads. let you know what happens.
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Old 21-10-2008, 11:50   #8
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Looking at pics, it appears we have a 150 A, or ZF 15MA. 1600+ bucks. anyone have a used one?
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Old 11-11-2008, 12:51   #9
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Just to finish up. We secured a good used Hurth 150 from Tom List Marine in Sausalito. great guy and the tranny works great. $600. a real savings. Indication was that a rebuild was an iffy proposition, so this worked out for the best. Have a good core if anyone needs one.

thanks to all the responders.

Jay
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Old 08-02-2011, 22:10   #10
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I have a ZF 5H transmission but am struggling to find information on this - any ideas?
Thanks
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Old 11-04-2011, 04:10   #11
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Re: Hurth HBW 150 Rebuild

Quote:
Originally Posted by Tim29 View Post
I have a ZF 5H transmission but am struggling to find information on this - any ideas?
Thanks
I believe its the same as the hbw 50. Im just getting ready to rebuild one and doing my research. Kinda irked at the $75 price tag of the manual. If i dont off find a download which is doubtful as ive been searching for a while, im gonna scan it and would be glad so send you or others a copy.
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Old 22-04-2011, 07:55   #12
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Re: Hurth HBW 150 Rebuild

Hi there,
I do need information for my Hurth HBW 250- same as ZF25M. Looking at the manual, there is the forward gear 44 and the reverse is 65. On both gears there are thrust washers 43. In the manual- art. 6.10.19- there is written: “Check gears 44 and 65 for free movability in an axial direction.” Perfect, and what is now the tolerance of this movability?
Best regards. Willy
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Old 07-05-2011, 13:45   #13
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Re: Hurth HBW 150 Rebuild

I managed to find a download repair manual for the ZF manual range. If anybody needs an emailed copy PM me. I believe the info is relevant to the Hurth.
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Old 07-05-2011, 13:50   #14
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Re: Hurth HBW 150 Rebuild

Hi, The axial float of the gears is controlled by the shims. There is a description in the manual section 6.6 figure 26. Hope this helps.
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Old 07-05-2011, 21:07   #15
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Re: Hurth HBW 150 Rebuild

You'll likely need some gaskets and such as well, but my local bearing supply (Central Coast Bearing) has been able to get every bearing that I've ever needed way cheaper than the dealership or OEM. Subaru timing belt rollers that were $65.00 each, she was able to get just the bearing for $12.00. I tapped them into the old rollers. A Porsche fuel injection pump shaft seal that was $38.00 from the regular auto parts suppliers she got for $4.50. My cutlass bearing for my boat was $135.00 at West Marine, $125.00 at Defender, she got me for $70.00. My prop shaft intermediate bearing was $150.00 from marine suppliers, $50.00 from Wendy, and she had it in stock. Wendy rocks. She can order anything by size and she can find almost anything by application. I'm sure that there is a good bearing supply near almost all of you, this is a small town.
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