landy-lee

Well-Known Member

• Jan 25, 2021

• #1

Good evening all.

Are Dowty washers better at sealing than copper washers?

I have never had parables with Dowtys but i know you get copper washers in the gasket sets.

Wonder if its worth shaping the copper washers for dowtys.

Cheers Landy Lee

 

marksman

Well-Known Member

Full Member

• Jan 25, 2021

• #2

Used a dowty washer for my Transfer output shaft and had no issues since

 

Bantam1

Well-Known Member

• Jan 25, 2021

• #3

Had to look them up!
They profess to be for greater sealing than copper or aluminium.
Can't say I've ever had an issue with copper or aluminium washers and I can re-anneal those and use again and again.
They'd have to be super cheap to make me change.

 

v8250

Well-Known Member

• Jan 25, 2021

• #4

Guys, if a manufacturer states a Dowty washer over a conventional copper/alloy washer, there's a reason for it. This is normally due to system pressure, Dowty washers are very good at sealing at higher pressures. On our Landies, Dowty washers are used on the high pressure side of the power steering pumps...but not on engine/gearbox sumps as these are low pressure.

 

R

rob1miles

Well-Known Member

• Jan 26, 2021

• #5

Agreed, they do different jobs. Stay with the spec.

 

Bantam1

Well-Known Member

• Jan 26, 2021

• #6

rob1miles said:

Agreed, they do different jobs. Stay with the spec.

Click to expand...

Not always true. Who the hell would be daft enough to use plastic dowels to locate a cylinder head?

 

Disco1BFG

Well-Known Member

Full Member

• Jan 26, 2021

• #7

Bantam1 said:

Not always true. Who the hell would be daft enough to use plastic dowels to locate a cylinder head?

Click to expand...

Amen ....

If a Dowty will stop the leak, and it'll take the pain ( I.E. not really any use as an injector sealing washer ), then carry on

 

Nodge68

Well-Known Member

• Jan 26, 2021

• #8

v8250 said:

but not on engine/gearbox sumps as these are low pressure

Click to expand...

We used to use 18mm Dowty washers on the sump plugs as a matter of course when I worked at a Citroën main dealer, as they were specified by PSA.

I continue use them on other similar applications.