Author Topic: Advice sought for recommissioning engine  (Read 2798 times)

pauldridge

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Advice sought for recommissioning engine
« on: February 08, 2020, 20:12:48 »
I rebuilt the 280 engine in my Pagoda some 8 years ago.  It has never been run since, but I have regularly sprayed fogging oil in the cylinders and turned over the engine.
Now, finally back in the car, I am ready to get this running.
I would appreciate any advice on first start attempt, including:
  • Pre-oiling procedure?
  • Injector pump and lines purging

Thanks in advance.. Hope springs eternal

Benz Dr.

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  • Benz Dr.
Re: Advice sought for recommissioning engine
« Reply #1 on: February 09, 2020, 08:20:32 »
Pull the spark plugs out and spin your engine over with using your starter until you see full oil pressure on your gauge. 
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn
1966 230SL 5 speed
1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1990 560SEC

MikeSimon

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Re: Advice sought for recommissioning engine
« Reply #2 on: February 09, 2020, 13:39:26 »
Does the oil pressure go to max at rpm generated by the starter?
1970/71 280SL Automatic
Sandy Beige
Parchment Leather
Power Steering
Automatic
Hardtop
Heated Tinted Rear Window
German specs
3rd owner

Benz Dr.

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  • Benz Dr.
Re: Advice sought for recommissioning engine
« Reply #3 on: February 10, 2020, 03:51:38 »
Does the oil pressure go to max at rpm generated by the starter?

Oh yes. Easily with cold oil and with the spark plugs removed.
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn
1966 230SL 5 speed
1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1990 560SEC

ctaylor738

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  • USA, VA, Falls Church
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Re: Advice sought for recommissioning engine
« Reply #4 on: February 11, 2020, 13:30:49 »
If you loosen the pipes at the injectors while you spin the engine w/o plugs, it will help purge air from the lines. 

Also, when you crank to start the engine, having an assistant energize/tap the cold start valve with a lead from battery positive will help the engine fire and keep running until the pump comes up to full pressure.
Chuck Taylor
1963 230SL #00133
1970 280SL #13027 (restored and sold)
1966 230SL #15274 (sold)
1970 280SL #14076 (sold)
Falls Church VA

 

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