question about fuel petcocks

[John Chevalaz]

 tnx to all the info supplied
john  c in the valley

    On Sunday, June 20, 2021, 9:57:08 PM EDT, Michael Cecchini <mrc.engr at verizon.net> wrote:  
 
 Do realize that the original fiber washers sealed much easier with less nut torque vs alloy washers.  

I don't use the alloy sealing washers that come with petcocks.  I use fiber washers from Harbor Freight or Amazon with a thin smear of Hylomar Blue sealant on both sides of the fiber washer.  Seals like butter. 

Do make sure all the petcock threads are clean (brass toothbrush works well) and wiped with some wheel bearing grease for ease of operation and anti-rust properties. 

I'm still using the same fiber washers from 10 yrs ago because they don't become deformed with such little torque on the sealing nut and Hylomar stays soft and seals time and time again. 

600 pc fiber washer kit will last you decades for all kinds of uses.... $16.

https://tinyurl.com/mkzz2vew


*******************************************
Christopher Sutton wrote:



I looked at a parts fiche from Max's and did not see a crush washer so i am guessing the filter screen and its associated base ring must me the crush washer or whatever forms a seal to keep the gas from dripping out.


You are correct. A new type screen with the built in aluminum crush washer will be your seal. The old washers were a red fiber washer. The newer screen setup will keep more tank debris out of the fuel system. 
Ps. Happy father day everyone!!


  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.dudley.nu/pipermail/paairheads/attachments/20210621/9ca86976/attachment.htm>