Oil pump csk screws

[DangerousDerek]

Where sells these? I need 2 sets.

[Steve_D]

Unless they are something special then any decent fixings supplier should be able to help.
I don't know what size they are but if the screw into aluminium then they will most likely be UNC.

So measure diameter.
Measure length (will be in steps of 1/8")

1/4-20 = .25" = 6.35mm
5/16-18 = .3125 = 7.9mm

Steve

http://shop.aseriesspares.co.uk/shop/fasteners-and...

[carsy]

My local fastner shop had them and in an allen key head instead of the screwdriver head. Much better.

Sorry not sure what thread they are.

[Sardonicus]

Sure these are M6 counter screws

[portzi]

Derek,

Welcome back,and l am looking forward to reading your motorsport articles.

If they are on the same level of detail that you put into your pistonheads posts we're in for a treat .

[DangerousDerek]

portzi said:

Derek,

Welcome back,and l am looking forward to reading your motorsport articles.

If they are on the same level of detail that you put into your pistonheads posts we're in for a treat .

Its Neil Russell that's writing the articles. I just provided my story and a guide to drag racing. I will report on my events regularly and cover any TVR drag racing days.

[portzi]

DangerousDerek said:

portzi said:

Derek,

Welcome back,and l am looking forward to reading your motorsport articles.

If they are on the same level of detail that you put into your pistonheads posts we're in for a treat .

Its Neil Russell that's writing the articles. I just provided my story and a guide to drag racing. I will report on my events regularly and cover any TVR drag racing days.

Has Neil taken over as the track day editor?

[DangerousDerek]

Sardonicus said:

Sure these are M6 counter screws

yup they measure 6mm diam and 12mm overall length

[DangerousDerek]

https://www.amazon.co.uk/Tensile-Including-Socket-...

[Steve_D]

Seems very strange to me that M6 fixings would be used in an engine where all the other fixings are imperial but it may have come about when the engine went serpentine.

Steve

[Sardonicus]

Steve_D said:

Seems very strange to me that M6 fixings would be used in an engine where all the other fixings are imperial but it may have come about when the engine went serpentine.

Steve

Exactly that Steve, serp water pump bolts are M8 except the ones that pass thru the cover to the block x4 are the expected 5/16 unc