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  #31 (permalink)  
Old 10-17-2012, 02:56 PM
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Get the Milodon diamond scraper and the proper bolt kit for it

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  #32 (permalink)  
Old 12-04-2012, 05:37 AM
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New problems...

Can someone explain the difference between these oilpumps:
- Melling 10550 with 0.625 pickup diameter (my new one)
- GM 12555281 with 0.750 pickup diameter (my old one)

What should I install and why?


Andreas
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  #33 (permalink)  
Old 07-27-2013, 08:32 AM
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Hi, the engine is almost ready to run...

Can anybody tell me, how I can determine the right engine oil level?
Pan and dipstick are new, the engine is already closed.


Andreas
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  #34 (permalink)  
Old 07-27-2013, 01:18 PM
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Just remember folks that the 95 octane in Europe that is quoted is only rated using Research Octane, which is not as detonation resistant as North American high octane 91 octane which is Research Octane PLUS Motor Octane DIVIDED by 2.

There is a fuel called "Euro-Super or Euro Premium which has a Research Octane Number (RON) of 95 which it is advertised in Europe as "95 octane". This same fuel has a Motor Octane Number(MON) of 85-86. So this same fuel using the North American rating system which is(RON + MON)/2=AKI(Anti Knock Index) is actually 90-90.5 AKI.

European Euro-Super
95 RON
85-86 MON
90-90.5 using AKI or (RON+MON)/2=AKI

So if we are talking about using a German fuel which is rated at 95 octane RON, it is actually around 90 (R+M)/2 or North American AKI. This is considered mid-grade in MANY North American areas.

Up here in Canada we can get Petro-Canada "Ultra 94" which is rated at:
101.5 RON
88 MON
94 AKI or (R+M)/2


On European 95 RON which is being bought at marinas, I would suggest running forged pistons, conservative timing advance and conservative static compression ratios. Then you have a nice safety margin and can run your blower with confidence.

peace
Hog
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Old 07-27-2013, 01:27 PM
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oops sorry, I made my comment while still reading on page#2.

Congrats on your engine being closed up and ready for start up..

If your pickup is spaced to the correct spec from the bottom of the pan(1/4" to 3/8" according to Milodon).

I would fill the oil filter with oil, then put 4 more liters in the pan and see where it is on the stick.
Depends on what pan you used.

peace
Hog
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  #36 (permalink)  
Old 07-28-2013, 05:38 AM
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Thanks, Hog and F-Bird'88.

Have anybody the right dimension between the bottom of engine block and the surface oil level? This could help.

Some pictures from my marine beast...
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  #37 (permalink)  
Old 07-29-2013, 05:17 AM
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Unfortunately are dynos for marine V8's rare in Germany...
I do not know anyone.

I will check it (and adjust it) onboard with Lambda sonde and exhaust pyrometer.
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  #38 (permalink)  
Old 09-03-2013, 06:34 AM
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Restart...

Thanks @all for your help, the restart was successfully!
Now the engine will reinstall in my boat and break in for 15-20 hours.

One problem with backfire when I quickly activate the secondaries from idle.
Within the primaries the engine takes the gas snappy.
Carb is 750 Mighty Demon 5402010BC.
Any ideas?

Andreas
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  #39 (permalink)  
Old 09-03-2013, 07:23 AM
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Ok, I will compile all data.

I have the possibility to fine tune with AFR and EGR.
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Old 09-03-2013, 07:31 AM
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Knock sensor is also built in...
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Old 09-03-2013, 07:38 AM
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I don't know, where can I find it?
It is a blower carburetor.
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Old 09-03-2013, 07:59 AM
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Quote:
Originally Posted by F-BIRD'88 View Post
what is the pulley diameters?
what cam?
Blower to crank 2:1 (5psi boost)

Cam: Comp Cams 08-301-8

Ignition: MSD Marine 6M-2
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