Suzuki DT4 water pump only works with shift linkage cover off

[pbruce66]

I know this is an old topic and the consensus seems to be to drill out the relief holes in the back of the engine. Has anyone tried this and do you have pictures? I just changed the water pump and have a new oil seal on order but (according to what I read) the relief holes my be the bigger issue.

 

[maineiac5586]

Having trouble with mine. Same thing better with SHIFT cover off. Pulled powerhead checked everything there is good. Cant figure this one out. Where are these relief holes

 

[ct1762@gmail.com]

it's the above mentioned oil seal for the impeller. leaks a tiny bit of air bubbles, rendering pump useless unless vented by taking off side cover.

 

[maineiac5586]

Are we talking about the seal that presses into the top of the water pump HOUSING (DRIVESHAFT goes through it.
part number [h=2]09289-10002[/h] can anyone confirm