jwfrary
Well-Known Member
So today I tried some liquid moly diesel purge on a 3GM30 (my own one for once!)
I had a leaky injector.... Well probobly two, yanmar injectors in gm's are pretty renowned for sticking and also for thier price!
I thought I would try out some some snake oil to push the injector out and rebuild job down the road a bit.
I have been using liquid moly stuff in my car for a while now, and noticed a product called diesel purge, also heard about it with VW audi groups PD engines as well but never used it. Wasn't expensive 14 quid for a litre on amazon, next day as well!
Anyway set too it warmed the engine up a bit, exhibited the usual one cylinder start with second then third. - whipped the inlet fuel line off stuck in in the can, ran at mid revs for a half an hour, used about half the product. Instructions say to stick the return into the can, seemed like to much work, spill on these engines is fairly low anyway.
The result well certainly seems audibly better, idles more stable, I would be inclined to think that it's made a decent impression on restoring the injector spray pattern so I'm fairly impressed. Start from cold result still to be seen, and I will report back, but on the face of it it seems that this does work and will to an extent remiedy the common slightly clogged/stuck injectors that we see from engines sitting in yachts.
For base, injectors have been done before I'm not sure how long ago, but I assume not long before I bought the boat 3 years ago as they were shiny still! so roughly 1000 hrs on them. Engine has 3500 hours on it now.
No connection to liquid moly, just a skeptical engineer happy to be proved wrong!
I had a leaky injector.... Well probobly two, yanmar injectors in gm's are pretty renowned for sticking and also for thier price!
I thought I would try out some some snake oil to push the injector out and rebuild job down the road a bit.
I have been using liquid moly stuff in my car for a while now, and noticed a product called diesel purge, also heard about it with VW audi groups PD engines as well but never used it. Wasn't expensive 14 quid for a litre on amazon, next day as well!
Anyway set too it warmed the engine up a bit, exhibited the usual one cylinder start with second then third. - whipped the inlet fuel line off stuck in in the can, ran at mid revs for a half an hour, used about half the product. Instructions say to stick the return into the can, seemed like to much work, spill on these engines is fairly low anyway.
The result well certainly seems audibly better, idles more stable, I would be inclined to think that it's made a decent impression on restoring the injector spray pattern so I'm fairly impressed. Start from cold result still to be seen, and I will report back, but on the face of it it seems that this does work and will to an extent remiedy the common slightly clogged/stuck injectors that we see from engines sitting in yachts.
For base, injectors have been done before I'm not sure how long ago, but I assume not long before I bought the boat 3 years ago as they were shiny still! so roughly 1000 hrs on them. Engine has 3500 hours on it now.
No connection to liquid moly, just a skeptical engineer happy to be proved wrong!
