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Old 29-09-17, 01:31 AM   #1
gamefarmone
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Question Lister D Hopper Fastener size

I'm just finishing up my Lister D-replaced the head gasket, lapped the valves, and gave the hopper a good cleaning to open up all the water passages.
It's been some time since starting the job, and as per usual, seem to have misplaced some necessary items.
I need the five nuts that hold the hopper and valve assembly down.
You know... one minute they're there, and then they're not?
Could someone tell me what size they are, and if they're British Whitworth threads?
That thread is all but impossible to find here in the States, so may have to opt for a rethread of the bolts if I can't find the originals.
Any suggestions on what size American Standard Die to use if it comes to that?

thanks for any suggestions

gamefarmone
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Old 29-09-17, 01:48 AM   #2
eddie78
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Quote:
Originally Posted by gamefarmone View Post
I'm just finishing up my Lister D-replaced the head gasket, lapped the valves, and gave the hopper a good cleaning to open up all the water passages.
It's been some time since starting the job, and as per usual, seem to have misplaced some necessary items.
I need the five nuts that hold the hopper and valve assembly down.
You know... one minute they're there, and then they're not?
Could someone tell me what size they are, and if they're British Whitworth threads?
That thread is all but impossible to find here in the States, so may have to opt for a rethread of the bolts if I can't find the originals.
Any suggestions on what size American Standard Die to use if it comes to that?

thanks for any suggestions

gamefarmone

They are 5/16 british whitworth
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Old 29-09-17, 05:51 AM   #3
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Quote:
Originally Posted by eddie78 View Post
They are 5/16 british whitworth
And 3 of them are brass....

And all of them are 7/16
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Last edited by Appletop; 29-09-17 at 04:11 PM. Reason: Added correct size
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Old 29-09-17, 05:53 AM   #4
slatteybarn
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And they are brass in the hopper to prevent them rusting up.you get some from Stationary Engine Parts 8.99 for a set of 3.

Hope this helps

Regards
Phil.
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Old 29-09-17, 01:07 PM   #5
danthetangye
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Quote:
Originally Posted by eddie78 View Post
They are 5/16 british whitworth
They are bigger than 5/16". I seem the recall that they are 7/16" bsw but haven't an engine handy you confirm.

Dan
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Old 29-09-17, 01:23 PM   #6
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Originally Posted by danthetangye View Post
They are bigger than 5/16". I seem the recall that they are 7/16" bsw but haven't an engine handy you confirm.

Dan
Yes certainly bigger than 5/16 BSW.
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Old 29-09-17, 02:44 PM   #7
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100% 7/16"

now the question of BSW of BSF...

Mine are BSW for the thread that goes into the block.

Worth checking your own as there seems to be different varieties built out there!

I have seen BSW forced onto BSW and vice versa - not pretty.

I work for Cat who are based out of Peoria, Ill, and I got colleagues to check this for me (yes I took head bolts on a trip to HQ...)

Hope that clears it up :)

Best

Hamish
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Old 29-09-17, 03:26 PM   #8
PuttPuttBang
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Originally Posted by cameltank View Post

I have seen BSW forced onto BSW and vice versa - not pretty.

Best

Hamish
? Hamish did you mean BSF ?
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Old 29-09-17, 03:32 PM   #9
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Can't say I have ever come across a Lister D with BSF head studs. The only time I have seen BSF on a Lister was on the G types.
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Old 29-09-17, 03:37 PM   #10
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All threads are BSW
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