Oil pressure cutout

Submitted: Friday, Feb 14, 2003 at 13:07
ThreadID: 3369 Views:1113 Replies:7 FollowUps:1
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Hallo there,

can anyone tell me how to disable the oil pressure cutout switch on a 1984 HJ47 2H diesel troopy?

Thanks in advance,

David
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Reply By: Gary - Friday, Feb 14, 2003 at 17:24

Friday, Feb 14, 2003 at 17:24
Why would you want too, no oil pressure no engine?
Not a good idea.

Cheers
AnswerID: 13129

Reply By: David W - Friday, Feb 14, 2003 at 18:03

Friday, Feb 14, 2003 at 18:03
I want to disable it so that I can start the engine without the following problem:

Start, run 30-45 sec, cut out. Repeat x 4, every morning.

I figure that as I start the engine immediately each time (and have done without problem for the past 4 years) the cutout is not serving a useful purpose, and it isn't helping my battery.
AnswerID: 13132

Reply By: bruce.h - Friday, Feb 14, 2003 at 20:09

Friday, Feb 14, 2003 at 20:09
david we had this problem on a 75 serius i would immedatly get your car to a mechanic and have the oil pump pick up checked as we had a faulty valve in it which end up costing a complete rebuid of the motor it was the year after yours but had the same motor symptoms were the same as you are experancing hope this help
Regards Bruce
AnswerID: 13138

Reply By: Bob Y. - Friday, Feb 14, 2003 at 20:50

Friday, Feb 14, 2003 at 20:50
David, The memory is a bit dim, but we used to have plenty of problems with them starting, and one of the easiest ways was to disconnect the arm between the solenoid and injector pump. Once the oil pressure was up, then you can fit back on. However, I'd agree with the others,you could have an expensive problem lurking there. Have seen blokes changing the oil in that model, using a piece of fencing wire to break up the jelly like sump oil, so it would run out the bung.
AnswerID: 13142

Reply By: Derek - Friday, Feb 14, 2003 at 23:27

Friday, Feb 14, 2003 at 23:27
David I worked on one of these engines in a Dyna many years ago and found it had a centrifugal seperator which was very clogged with a waxy compound, presumably from the engine oil. It's just a thought.
AnswerID: 13160

Reply By: Member - Robert- Saturday, Feb 15, 2003 at 09:51

Saturday, Feb 15, 2003 at 09:51
there is a oit pressure switch just above the starter motor at the rear of the engine near the bell housing if you disconnet this wire it will stop the cutting out on start up
AnswerID: 13186

Follow Up By: David W - Wednesday, Feb 19, 2003 at 15:53

Wednesday, Feb 19, 2003 at 15:53
Hi Robert, thanks for your advice, I didn't think it would be so easy.

I had a look and gave all the connectors a good clean, rather than disconnecting everything. So far it seems to have helped, and the max pressure on the gauge seems higher too, so maybe just down to dirty/oxidised connectors. Now that I know where it all is I can keep it clean!

David.
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FollowupID: 7903

Reply By: ray91 - Saturday, Feb 15, 2003 at 18:56

Saturday, Feb 15, 2003 at 18:56
also check the oil filter .some cheaper ones drain oil back to the sump when standing. The oil has to fill the filter each time you start the car before you get any oil pressure
AnswerID: 13208

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