| Author |
Message |
    
RayC
Visitor
| | Posted on Thursday, December 15, 2005 - 02:02 pm: | 
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MG30 Yanmar - Oil leak from large gasket timeing cover. Gasket actually escaping. Can I push in and apply some kind of sealant to stop leak?
Thanks. |
MARVIN PIERCE
Member
Username: marv
Post Number: 48
Registered: 09-2001
| | Posted on Tuesday, December 20, 2005 - 03:52 pm: |
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no it wiil not work. you must install new gskt. |
Ronald E Cairns
Member
Username: ron_cairns
Post Number: 6
Registered: 12-2005
| | Posted on Wednesday, December 28, 2005 - 01:04 pm: |
|
I think you have a 3GM30 F stands for factory fresh water cooling. Looking at the t/c the leak is about 5 o'clock in the oil filter area.
ORDER IN THE 121575-01512 gskt. They may want to sell you the -01511 gasket, but the -01512 hangs in better. It is used on the industrial version and has a graphite composition. Do not forget to change the 2 o-rings that go onto oil ports between cover & block & gasket. p/n 24311-000100 |
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Visitor
| | Posted on Monday, March 06, 2006 - 09:56 pm: |
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Ed Donahue
Visitor
| | Posted on Saturday, June 21, 2008 - 08:49 pm: |
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Greetings,
Have a 6LP with 170 hours. On a test run the mechanic pushed the throttle clear forward and the engine bogged down and so much smoke came out the Coast Guard thought the boat had a fire onboard ( no kidding ). It works fine with a slow increase in speed and at high rpm.
Is this a sign of potential serious problems? It should be noted that the service center overfilled the oil, I put about 9 hours on it and they pumped out the oil to operating level. THKS, Ed |
Ed Donahue
Visitor
| | Posted on Saturday, June 21, 2008 - 08:53 pm: |
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On the Yanmar of interest to the Coast Guard, I should have mentioned the oil over fill was 9 hours before being pumped down to normal level. The problem occurred with high oil and normal level. |
Ronald E Cairns
Member
Username: ron_cairns
Post Number: 67
Registered: 12-2005
| | Posted on Saturday, June 21, 2008 - 10:59 pm: |
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Hi Ed, keep an eye on it. Overfilling these engine with lube oil is not a good thing.
Call your local Authorized Yanmar Dealer or Yanmar direct and get their feelings on this, How much was it overfilled? |
Ed Donahue
Visitor
| | Posted on Monday, June 23, 2008 - 12:09 am: |
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Hi Ron,
About 3 quarts. Experienced Yanmar mechanic to advise tomorrow, Will post the reply. |
Ed Doanhue
Visitor
| | Posted on Tuesday, June 24, 2008 - 08:09 pm: |
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Ron,
Factory rep from Georgia, said no problems, just run it normally and at high rpm if idling for a long time. Also, oil will spill from the vent if boat is at an angle during a initial full throttle push before plane angle.
Still waiting for more input.
Ed |
Ronald E Cairns
Member
Username: ron_cairns
Post Number: 70
Registered: 12-2005
| | Posted on Tuesday, June 24, 2008 - 08:27 pm: |
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Your engine is a turbo changed unit. Avoid low RPM and Idles. Run at the cruising range and change lube oil on schedule. Also have the valve lash adjusted once a season. I am glad you went to the horses mouth for their professional advise. Overfilling with lube oil creats foaming and can also bend con rods. |
