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Old 22-07-2012, 05:44 PM   #1
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Smile BMW d636 turbo marine

Hi I have a 3.6 BMW marine and cant get the turbo to boost have took it of and all seems fine any ideas? It would help a lot
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Old 22-07-2012, 08:58 PM   #2
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is it an electronic motor, or traditional mechanical injector pump?
And does it smoke (black) when trying to get on boost, or is it clean?
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Old 22-07-2012, 09:07 PM   #3
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Hi Jon macanical pump just over 2600 I get no more power on the throttle and a little black smoke from the back
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Old 22-07-2012, 11:28 PM   #4
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Has it suddenly started this, or have you bought it like it, or what?

When you say BMW, is it the VM engine? (i think some people refer to it as a BMW sometimes)

If it's smoking (black) it clearly can't burn the fuel, so either not boosting (as you say) because the turbo is in trouble, or maybe it's (the turbo) unable to breath? exhaust wet bend/elbow, or lower pipework/drive exhaust route restricting it's exit in some way, maybe through corrosion or even an upstream restriction, i.e., blocked or collapsed air filter or induction pipe?
If it wasn't smoking, fingers would point toward the pump/injectors, but black smoke means insufficient oxygen for the amount of fuel, i.e., LOW BOOST.

Oooh, and lastly, does this boat live in the water on a mooring? If it does, when was it last lifted and barnacles etc removed?
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Old 23-07-2012, 08:20 PM   #5
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Hi Jon boat has sat in the water for a while and was lifted out Friday when I bought it the engine says BMW marine on the top and on the bowman fuel tank was full when I bought it so don't know how long it's been stud have a bill from injector overhoul 2 year ago so I think the lad I bought it of was also chasing the problem so would be nice to work it out !!!
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Old 23-07-2012, 10:15 PM   #6
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Hi Rob
Might sound stupid but have you checked fuel flow and blocked pipes or filter. Simple solution small seperat tank and new pipes, I had a similar problem wouldn't pull enough rev's for turbo to cut in. Found blocked fuel pipe it run great on low revs up to about 2300 - 2400.
Worth a look before you start stripping and spending big money.
Good luck
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Old 24-07-2012, 08:32 AM   #7
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Quote:
Originally Posted by rob m View Post
Hi I have a 3.6 BMW marine and cant get the turbo to boost have took it of and all seems fine any ideas? It would help a lot
These engines suffer with sticky rings, check compression. they have also had a problem with condensation on valves causing rusting and blow-by, at 2600 rpm sounds like turbo is working if not you would be lucky to reach 2000, have you considered it being over propped.
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Old 24-07-2012, 08:26 PM   #8
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Thanks for all replays will have a tinker at the week end
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Old 27-07-2012, 09:57 PM   #9
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Angry BMW d190 z turbo

Hi I need a turbo or turbo number for my d190z can anyone help? Could really do with it
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