Realtime - injector washer/gasket orientation? (1 Viewer)

[amaurer]

The little brass donuts under the injectors, which way goes "up", the concave or convex side???

 

[lynchmob]

The little brass donuts under the injectors, which way goes "up", the concave or convex side???

Got a pic? Most I have seen are flat. They usually have a chamfered edge on one or both sides around the outside radius.

 

[lostmarbles]

The little brass donuts under the injectors, which way goes "up", the concave or convex side???

There are two sealing washers.

The lower one is convex one side and concave the other. - The CONCAVE side goes uppermost.

Here are my new washers in place ready for the injector to be screwed in on top:





PS. This picture of the old washers may show their shapes better:



And here's confirmation from the FSM:



PPS. And to satisfy my interest - Do you know any of the numbers for your 3B injectors? (For instance "1800 body" or "DN4 SD-24 nozzles")

 

[DEADSALT]

@lostmarbles -injector shop is asking me the same question...

does anyone have the denso or Bosch part #’s for 3b injector gasket and 3b injector seal?

 

[DEADSALT]

Injection Nozzle Seat - 11176-56010

Injection Nozzle Gasket - 11177-56010

 

[roscoFJ73]

You didnt say what 3B you have or what year/model, Im assuming they are all the same but thats for you to check. Im also surprised an experienced diesel fuel injection shop can not work this out.

 

[DEADSALT]

its a B in a 1980 BJ40 canadian spec 24v
and i was little surprised that they were asking me as well.

by the sounds of it, they were a little surprised i did not send them an old gasket and seal for reference.

Thanks for fwding the parts spread sheet from Toyodiy.com

 

[roscoFJ73]

and i was little surprised that they were asking me as well.

Most fuel injection shops have a little library full of old parts manuals. Or they can get inside parts lists online that consumers often have trouble accessing.
The B engines have been used in refrigeration and boats, they are possibly one of the most common 3 litre diesels in the world.