FOLLOW-UP ON PRE-OILING A DIESEL ENGINE BEFORE STARTING.

Posted by Ken McWilliams on October 23, 2000 at 09:57:09 from (38.232.245.127):

Thanks, to the many respondants to my posting below. A lot of good suggestions.

When I assembled the engine last week, I placed lubricant on the rod and main bearings. After the pistons w/rings were installed, I poured oil on the tops and then turned over the block while on the engine stand and poured oil into the bottoms of the pistons to get oil into the oil rings.

What I did was crank the engine without the injectors in place and spun the engine with no load using the starter until oil began seeping out of the rocker arms. Afterwards, I installed the injectors and purged them until fuel seeped out of the upper loosened nuts on the fuel lines. Then, I tightened the nuts and the engine was running within 15 seconds.

I watched the oil pressure gauge while cranking with the starter and observed that the pressure was close to normal.

Since there was so much cranking with the starter before starting the engine, I feel comfortable that all was oiled before the big bang.

While the engine was cranking without the injectors, the starter spun fine. Once it started cranking against the compression, however, it was soon discovered about mid-night, Friday, the battery had a bad cell. The starter just stalled. I, along with the engine, was primed and ready to go, but had to wait until Saturday morning to get another battery.

By the way, it is gratifying to hear an engine come to life after being all over the county at different shops having different things done to the components.

This engine when coming apart did not have one single compression ring still in 1 piece. Some of the compression rings were in a dozen pieces. It is believed that someone hit it too hard with starting ether in the past. I bought the tractor in June with a bad engine. Before rebuilding, it smoked so bad that the breather tube smoked as much as the exhaust pipe.

After running for about an hour Saturday, I placed my finger over the crankcase breather tube and zero (zip) pressure built up from blow-by. It's looking as it will be a good rebuild.

Thanks to all who have contributed to my questions about this Perkins diesel over the past month.

Thanks, again.

Ken McWilliams
Dayton, OH

Follow Ups:

• Re: FOLLOW-UP ON PRE-OILING A DIESEL ENGINE BEFORE STARTING. GEO 14:37:36 10/23/00 (2)
  • Re: Re: FOLLOW-UP ON PRE-OILING A DIESEL ENGINE BEFORE STARTING. Ken McWilliams 20:17:27 10/23/00 (1)
    • Re: Re: Re: FOLLOW-UP ON PRE-OILING A DIESEL ENGINE BEFORE STARTING. Chip 10:48:13 10/24/00 (0)

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