Water Gasket Material

[vyv_cox]

See post #2
The critical thing is the grease.

It's a rather poorly designed part. A small flange with only two small bolts attaching it to the block, having a relatively long cranked tube and the hose from the water pump on its end. I suspect a little flexibility will help it to remain sealed.

 

[Poignard]

 

[Alex_Blackwood]

DELETED

If only!!!

 

[Little Dorrit]

I have purchased some Nitrile-bound cork which I will seal and also make sure both surfaces are completely flat, thanks for the help.

 

[vyv_cox]

View attachment 153375

That's interesting, I take it that's a new part? On mine (prior to about 2000) the 'gas poker' injection nozzle was part of it. Is it separate now?

 

[Poignard]

That's interesting, I take it that's a new part? On mine (prior to about 2000) the 'gas poker' injection nozzle was part of it. Is it separate now?

You're right, the nozzle was longer on mine too, but I don't know if it is now a separate part.

If I ever had to replace mine I would make the whole thing myself, rather than pay the high price of the BUKH part.

I guess you would do the same.

 

[vyv_cox]

You're right, the nozzle was longer on mine too, but I don't know if it is now a separate part.

If I ever had to replace mine I would make the whole thing myself, rather than pay the high price of the BUKH part.

I guess you would do the same.

Yes, but I changed mine for a Yanmar 3GM30 in around 2000. Has proved to be a great investment, remarkably reliable.

 

[davidmh]

I suspect the pipe shown is for the DV10 which is i believe shorter than the dv20 as it only feeds a single cylinder. The DV20 has a longer nozzle with a couple of holes in the side and the end of the tube is pinched up slightly so the flow is distributed. I use the Bukh gasket but I soaked it in oil first and that seems to keep it sealed. I also do the final nip up after the engine has run up and everything is warm.

 

[Poignard]

Here we are:





And differences between the DV10 and DV20:

 

[Little Dorrit]

I suspect the pipe shown is for the DV10 which is i believe shorter than the dv20 as it only feeds a single cylinder. The DV20 has a longer nozzle with a couple of holes in the side and the end of the tube is pinched up slightly so the flow is distributed. I use the Bukh gasket but I soaked it in oil first and that seems to keep it sealed. I also do the final nip up after the engine has run up and everything is warm.

On my engine you have to take the flywheel off to get access to the pipe so doing a nip after running the engine is a bit of a faff. I assume you had easier access?

 

[Little Dorrit]

Here we are:

View attachment 153418



And differences between the DV10 and DV20:

View attachment 153419View attachment 153420

Your googling skills are exceptional.

 

[Poignard]

On my engine you have to take the flywheel off to get access to the pipe so doing a nip after running the engine is a bit of a faff. I assume you had easier access?

I have 'special' hex key with a shortened short leg (if you see what I mean). This, together with a ball-ended hex key, enables me to remove and refit the distributor on my DV10 without disturbing the flywheel.

Not that it has needed removing since I filed the mating face flat.

In view of the limited space between the back of the flywheel and the cylinder block, it might make the job easier if the two hex socket cap screws were replaced by ordinary hex head screws.

 

[Little Dorrit]

I have 'special' hex key with a shortened short leg (if you see what I mean). This, together with a ball-ended hex key, enables me to remove and refit the distributor on my DV10 without disturbing the flywheel.

Not that it has needed removing since I filed the mating face flat.

In view of the limited space between the back of the flywheel and the cylinder block, it might make the job easier if the two hex socket cap screws were replaced by ordinary hex head screws.

Sadly not possible with the DV24 (someone will prove me wrong no doubt). I wish I had never removed the thing. Sometimes ignorance of potential problems is bliss; we live and learn!