fuel pump retaining bolts.

Technical advice Q&A
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Paul Jorgensen
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Joined: Wed Oct 26, 2016 7:28 am
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#1 fuel pump retaining bolts.

Post by Paul Jorgensen » Wed Dec 20, 2017 9:27 am

Hi All,

I have recently removed the fuel tank from My series 1 and would like to replace the fuel pump to tank screws with Stainless Steel.
Can someone advise me on what thread these slotted machine screws are.
Paul
Paul. 1962 Series 1 roadster 850543
1965 mk 1 Lotus Cortina
1973 Triumph Stag (had it since 1982)

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Series1 Stu
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#2 Re: fuel pump retaining bolts.

Post by Series1 Stu » Wed Dec 20, 2017 5:27 pm

Those screws should be 3/16" UNF X 1/2" long.

Personally, I wouldn't use stainless steel screws here because they may gall and then you'd never get them out without drilling. Not something you'd want to do around fuel.

Regards
Stuart

If you can't make it work, make it complicated!

'62 FHC - Nearing completion
'69 Daimler 420 Sovereign
'78 Land Rover Series 3 109

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Paul Jorgensen
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#3 Re: fuel pump retaining bolts.

Post by Paul Jorgensen » Thu Dec 21, 2017 12:37 pm

Thank you for coming back to me & your advice.
Paul
Paul. 1962 Series 1 roadster 850543
1965 mk 1 Lotus Cortina
1973 Triumph Stag (had it since 1982)

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bitsobrits
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#4 Re: fuel pump retaining bolts.

Post by bitsobrits » Thu Dec 21, 2017 8:53 pm

Stainless screws won't gall with just a little bit of anti-seize paste.

I've replaced all corrosion prone fastener locations with high grade stainless and have never experienced galling, as I always use anti-seize. Stainless fasteners without anti-seize could indeed be gall-city.
Steve
'65 S1 4.2 FHC (early)

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cactusman
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#5 Re: fuel pump retaining bolts.

Post by cactusman » Thu Dec 21, 2017 9:27 pm

As Steve says....use stainless steel or brass. I used stainless plus copper grease...no issues...they come out looking brand new...
Julian the E-type man
1962 FHC
1966 MGB....fab little car too

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