Injector seals/compression washers

VonKasta · Sep 19, 2019

So Im rebuilding an old Iseki ts2220 I bought for cheap, it is fitted with a Isuzu 2ab1 2-cyl diesel engine.
It has been fired up successfully but as it was running I noticed a kompression leak around an injrctor.
Pulled the injectors and foun two bad and two missing washers. I have sourced new nozzle washers as I suppose they are the kompression seals. But the ones called corrugate washer wasnt there.
I have measured the space and calculated the thickness and with, but how are they supposed to look?
Can I use a solid kopper washer of the correct size or are they meant to collapse on itself as you tighten the injector like a washer on a spark plug?

VonKasta · Sep 19, 2019

Finally found a picture of one, for future reference.

Roadworthy · Sep 19, 2019

Your picture didn't come across. If you choose to use a copper washer, heat it first until it's red hot then allow it to air cool. This should allow it to act as a seal. Your injectors are probably Nippon Denso and as such any shop working on diesel injectors should be able to supply the correct washers - or even overhaul yours if necessary.