[christian.hess]

there are ways to cut down on vibes...for the T.

anywhoo...my old 2gm would always buzz on startup and on shutdown are yours the same?

 

[christian.hess]

Your are right. I even bought a oil pressure sender and gauge. However there is a question on the yanmars as to if is is best to install a tee fitting so you have both pressure gauge and press switch (with buzzer and light). Once the Tee fitting is installed, the vibaration of the engine (and with the weight of the gauges/switches hanging off the end of the Tee fitting), there is greater likelyhood of the Tee fitting breaking or leaking. In the end, I have not installed the gauge because it seems it makes it much more likely to have an oil leak at the connections.

to me the solution would be not to have all the cake at once, remove buzzer

a good oil pressure gauge is better than having an idiot light with a buzzer that can crap out anytime

well installed you shouldnt have any issues with vibes...

I have installed oil temp gauges/senders on 1 cylinder thumper offroad motorcycles...you want to talk vibes and harsh environments there you have it...

 

[dabnis]

Yes sometime we introduce a new component and along came new problem. Mr. Murphy is always lurking somewhere uke

I think I have read about a system where a pressure gauge, & light/buzzer can all be operated by one sending unit. Maybe a search?

Paul T

 

[christian.hess]

yeah I dont think thats such a hard issue to resolve...I think a buzzer can be rigged on the same line...

thinking caps on! jajaja

 

[dabnis]

yeah I dont think thats such a hard issue to resolve...I think a buzzer can be rigged on the same line...

thinking caps on! jajaja

I have used steel "T"'s instead of brass on two VW diesels with no problems. From time to time I would yank on them but could not break them off.

Paul T

 

[trantor12020]

The results are in!! I've warm up the engine and check the compression, then squirk some oil into the cylinder and test it again annnnd the result IS ...No Different!!? 260psi.
Same as when I first did the test. So what does that tells me?

 

[dabnis]

The results are in!! I've warm up the engine and check the compression, then squirk some oil into the cylinder and test it again annnnd the result IS ...No Different!!? 260psi.
Same as when I first did the test. So what does that tells me?

Likely that the rings are OK, or evenly worn enough where the oil didn't make any difference. If the compression is low according to the specs, It may be marginal valves or a slight leak in the head gasket between the cylinders.

If it starts OK & can run up to max, or close, RPM's, doesn't smoke excessively,
or make bad noises, or burn excessive amounts of oil, maybe leave it alone?

Paul T

 

[trantor12020]

dabnis, yes indeed that's my thought on leaving it be as it is about what you mentioned.

 

[dabnis]

dabnis, yes indeed that's my thought on leaving it be as it is about what you mentioned.

Life is good.

For many years I was the ultimate tinkerer, many/most times accomplishing nothing, & in some cases, making things worse.

A quote from my wife:

"Make sure there is fuel in the tank before ripping out the engine".

Paul T

 

[christian.hess]

x2...

 

[Minnewaska]

It seems pretty unlikely there is nothing wrong with a motor whose mixing elbow was coked and rusted up so much that it choked the engine off and was then run for a long period on 1 qt of oil.

Nevertheless, if it is okay, it is stated the motor will not make max rpm under load. If that's all true, it has the wrong prop. Failing to correct that will cause engine damage.