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furgo
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Joined: September 06, 2016
Posts: 944
Location: Southern Germany
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 Posted: Mon Mar 19, 2018 10:02 am Post subject: Dimensions of fan hub washer 021 119 131 |
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This washer is missing on the engine I'm working on and it seems to be fairly NLA. It's a simple enough part that I can fabricate, but I'm missing the dimensions.
My guess at the dimensions, from measuring the fan hub hole where the washer should be located:
• O.D. - 36 mm (1 13/32") 22 mm (7/8")
• I.D. - 8,4 mm (3 15/16")
• Thickness - 5 mm (3/16") 3 mm (1/8")
If someone could confirm these, that would be great.
Alternatively, simply visually confirming that the top of the washer is flush with the top of the fan hub would help me inferring the dimensions.
Thanks!
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'79 Westy, P22 interior, FI 2.0 l Federal, GE engine (hydraulic lifters)
Decode your M-Plate
Last edited by furgo on Fri Mar 23, 2018 2:24 am; edited 1 time in total |
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raygreenwood
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Joined: November 24, 2008
Posts: 21512
Location: Oklahoma City
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| Posted: Mon Mar 19, 2018 10:39 am Post subject: Re: Dimensions of fan hub washer 021 119 131 |
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| furgo wrote: |
This washer is missing on the engine I'm working on and it seems to be fairly NLA. It's a simple enough part that I can fabricate, but I'm missing the dimensions.
My guess at the dimensions, from measuring the fan hub hole where the washer should be located:
O.D. - 22 mm (7/8")
I.D. - 8,4 mm (3 15/16")
Thickness - 3 mm (1/8")
If someone could confirm these, that would be great.
Alternatively, simply visually confirming that the top of the washer is flush with the top of the fan hub would help me inferring the dimensions.
Thanks! |
If someone else does not get it to you first I will have it to you shortly.
Its thickness is the most critical. Its a "spacer".
It is there to put the fan in the proper pulley alignment with the alternator. It goes there when you are not using the air conditioning pulley. Ray |
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busdaddy
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Joined: February 12, 2004
Posts: 51124
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Mon Mar 19, 2018 12:38 pm Post subject: Re: Dimensions of fan hub washer 021 119 131 |
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| raygreenwood wrote: |
Its thickness is the most critical. Its a "spacer".
It is there to put the fan in the proper pulley alignment with the alternator. It goes there when you are not using the air conditioning pulley. Ray |
I think he's referring to the washer under the center bolt that secures the hub to the crank, it's just a thick washer, I'll try and find one later today to measure.
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raygreenwood
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Joined: November 24, 2008
Posts: 21512
Location: Oklahoma City
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| Posted: Mon Mar 19, 2018 1:12 pm Post subject: Re: Dimensions of fan hub washer 021 119 131 |
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| busdaddy wrote: |
| raygreenwood wrote: |
Its thickness is the most critical. Its a "spacer".
It is there to put the fan in the proper pulley alignment with the alternator. It goes there when you are not using the air conditioning pulley. Ray |
I think he's referring to the washer under the center bolt that secures the hub to the crank, it's just a thick washer, I'll try and find one later today to measure. |
You mean...the one that he highlighted....electric freaking blue so I would not miss it....  ....  ....
Yep....just a big fat washer. Carry on here...nothing to see.... 
Ray[/b] |
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furgo
Samba Member
Joined: September 06, 2016
Posts: 944
Location: Southern Germany
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| Posted: Mon Mar 19, 2018 2:32 pm Post subject: Re: Dimensions of fan hub washer 021 119 131 |
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| raygreenwood wrote: |
You mean...the one that he highlighted....electric freaking blue so I would not miss it.... .... ....
Yep....just a big fat washer. Carry on here...nothing to see.... |
Yeah, exactly that one 
I understand now that the dimensions are not critical, but if I fabricate it or find one, I might as well do it with the original measurements. If not possible, not a big deal though, I'll just go with my guessed dimensions.
Fortunately, I do have the other one, the spacer you're mentioning (#3 in the picture), which would have been a wee bit more difficult to make.
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'79 Westy, P22 interior, FI 2.0 l Federal, GE engine (hydraulic lifters)
Decode your M-Plate |
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raygreenwood
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Joined: November 24, 2008
Posts: 21512
Location: Oklahoma City
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| Posted: Mon Mar 19, 2018 3:03 pm Post subject: Re: Dimensions of fan hub washer 021 119 131 |
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| furgo wrote: |
| raygreenwood wrote: |
You mean...the one that he highlighted....electric freaking blue so I would not miss it.... .... ....
Yep....just a big fat washer. Carry on here...nothing to see.... |
Yeah, exactly that one
I understand now that the dimensions are not critical, but if I fabricate it or find one, I might as well do it with the original measurements. If not possible, not a big deal though, I'll just go with my guessed dimensions.
Fortunately, I do have the other one, the spacer you're mentioning (#3 in the picture), which would have been a wee bit more difficult to make. |
The one thing that should be done with that washer...is that since the bolt is the "safety" bolt for a machined taper joint....it should be thick, hard and as flat as possible on both sides so it makes support for locking very positive. Ray |
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type241
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Joined: June 02, 2006
Posts: 971
Location: MOSES LAKE, WA
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| Posted: Mon Mar 19, 2018 3:32 pm Post subject: Re: Dimensions of fan hub washer 021 119 131 |
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How come these bolt and washers are so hard to find?
I need a washer/bolt set if your making these or ???? |
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SGKent 
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Joined: October 30, 2007
Posts: 41031
Location: Citrus Heights CA (Near Sacramento)
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Wildthings
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Joined: March 13, 2005
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| Posted: Mon Mar 19, 2018 8:20 pm Post subject: Re: Dimensions of fan hub washer 021 119 131 |
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| One could braze two 3/8" Grade 8 USS washers together and have a pretty good substitute for the original. A metric equivalent would do as well. |
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furgo
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Joined: September 06, 2016
Posts: 944
Location: Southern Germany
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| Posted: Tue Mar 20, 2018 12:35 am Post subject: Re: Dimensions of fan hub washer 021 119 131 |
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| type241 wrote: |
| How come these bolt and washers are so hard to find |
I cannot answer that question. Maybe they're easier to find in the US, but here in Europe only VW Heritage (UK, out of stock) and a Dutch hotrod shop carry them. They might be available somewhere else too if one looks harder, but I don't think I'll be ordering a simple washer from another country. I'll go ahead and make my own.
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'79 Westy, P22 interior, FI 2.0 l Federal, GE engine (hydraulic lifters)
Decode your M-Plate |
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furgo
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Location: Southern Germany
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| Posted: Fri Mar 23, 2018 2:23 am Post subject: Re: Dimensions of fan hub washer 021 119 131 |
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It took an iteration of ordering the wrong washer blanks and then looking for pictures of the assembled washer on the gallery, but I think I now have the correct measurements. I thought I'd update and bring the thread to a close in case someone happens to need these dimensions too.
• O.D. - 36 mm (1 13/32")
• I.D. - 8,4 mm (3 15/16")
• Thickness - 5 mm (3/16")
Initially I had wrongly assumed that the washer fitted into the hole of the fan hub and was flush with the top plane of the hub. Instead, it goes on top of the hub, and its diameter is just slightly smaller than it.
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'79 Westy, P22 interior, FI 2.0 l Federal, GE engine (hydraulic lifters)
Decode your M-Plate |
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SGKent
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Joined: October 30, 2007
Posts: 41031
Location: Citrus Heights CA (Near Sacramento)
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| Posted: Fri Mar 23, 2018 9:46 am Post subject: Re: Dimensions of fan hub washer 021 119 131 |
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make sure you have the correct hardness too.
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raygreenwood
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Joined: November 24, 2008
Posts: 21512
Location: Oklahoma City
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| Posted: Fri Mar 23, 2018 2:02 pm Post subject: Re: Dimensions of fan hub washer 021 119 131 |
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| SGKent wrote: |
| make sure you have the correct hardness too. |
Yes.....class 10.9 or grade 8 in SAE...minimum. This washer may not appear to do much....but it and the bolt going through it are the safety fastener for the tapered hub. Its ugly if one comes loose.
Ray |
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