engine trouble

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Horst
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engine trouble

Unread post by Horst » July 3rd, 2010, 9:56 am

After only 1000 miles on the government rebuild engine I am getting trouble with it. I have oil pressed out around the filler cap and one of the valve cover screws. Just removed the PCV valve, does not seem to be stuck.

It is quite hot right now, but don't believe it has anything to do with it.

Ideas what could be wrong ? I would guess something major...
Horst

1972 USMC M151A2 w/ROPS (ex Barstow) and M416
1962 M201 and trailer
1966 GTO,1982 E350 Skoolie, 1987 SJ413, 1987 911
Gone: 2xM35A2c, Unimog 404S, Hanomag AL28, DKW Munga

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cstaup
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Re: engine trouble

Unread post by cstaup » July 3rd, 2010, 11:43 am

Are the oil lines under the valve cover secure?

BTW Congratulations Deutschland! :D :mrgreen:
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toptiger
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Re: engine trouble

Unread post by toptiger » July 3rd, 2010, 1:21 pm

Yeah, Great win. Congratulations
and I have a Brazilian house guest this weekend, he is not talking, just sulking, so congrats to our Dutch friends here, too
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raymond
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Re: engine trouble

Unread post by raymond » July 3rd, 2010, 3:08 pm

Are any of the vacuum lines clogged :?:
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halftracknut
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Re: engine trouble

Unread post by halftracknut » July 3rd, 2010, 8:54 pm

Horst ,do I rememer correct don't you have a fording valve? Is it in the correct position?
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rickf
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Re: engine trouble

Unread post by rickf » July 4th, 2010, 8:52 am

I know of one instance where the fording valve went bad somehow and always kept pressure in the crankcase. You might want to pull the fording valve and put in a non-fording setup just to check. Usually that much blowby all of a sudden is a sign of a broken ring or a holed piston. Those have other symptoms to go along with them and it does not sound like you have those symptoms. I know I have had the O-ring go out a couple of time on different motors on the oil feed line to the rockers. The feed line is the one in the back. when the o-ring leak oil squirts all over.

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Horst
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Re: engine trouble

Unread post by Horst » July 4th, 2010, 9:50 am

Rick,

I went ahead and made a quick compression check. All 4 cylinders read identical. Removed the valve cover, no excessive oil. Being there I checked the valve gaps. I checked the fording valve (remove the line to the valve cover and check for suction, fording valve is in the correct position) and have a nice vacuum at the end of the PCV valve.
I seem to have too much crankcase pressure, but why?
Horst

1972 USMC M151A2 w/ROPS (ex Barstow) and M416
1962 M201 and trailer
1966 GTO,1982 E350 Skoolie, 1987 SJ413, 1987 911
Gone: 2xM35A2c, Unimog 404S, Hanomag AL28, DKW Munga

Floyd
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Re: engine trouble

Unread post by Floyd » July 4th, 2010, 1:13 pm

Horst: You’re a good mechanic, why not run a crankcase pressure test :?:

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