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sea
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Join Date: Jan 2009
Posts: 2

SEA

01/18/2009 2:23 AM

We have 1.5 MW genset ,Man made ,air started .The first start@25 bars .After many working days it took 30 bars to start ,so on building up air press. with time .We need u technical support
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rmg21
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Engineering Fields - Transportation Engineering - VTOL nut

Join Date: Jan 2007
Location: Far East
Posts: 139
#1

Re: SEA

01/18/2009 3:49 AM

sea, your question is unclear.

did you mean it takes more pressure to crank the engine, for it to start?

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sea
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Join Date: Jan 2009
Posts: 2
#2
In reply to #1

Re: SEA

01/18/2009 4:41 AM

Yes it takes more pressure
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rmg21
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Engineering Fields - Transportation Engineering - VTOL nut

Join Date: Jan 2007
Location: Far East
Posts: 139
#3

Re: SEA

01/18/2009 4:55 AM

have you performance checks, compression pressure test(fuel cut-off), etc.

1. starting valve could be leaking/sticky.

2. inlet/exhaust valve leaking/burnt.

3. same thing to piston(s), i.e.:blowpass.

4. air distributor leakage.

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BudT
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Join Date: Mar 2007
Location: Newburgh, IN
Posts: 283
Good Answers: 10
#4
In reply to #3

Re: SEA

01/18/2009 3:31 PM

What kind of lubrication are you using in the Air Motor Satrter?

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 Bud Trinkel
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rmg21
Power-User
Engineering Fields - Transportation Engineering - VTOL nut

Join Date: Jan 2007
Location: Far East
Posts: 139
#5
In reply to #4

Re: SEA

01/19/2009 2:19 AM

BudT, this is likely to be a direct air start type engine. air motor crank type engine don't normally operate at 20-30 bar...it's more likely to be 10bar max.

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