Diamond, RB30 help.

Submitted: Sunday, Apr 17, 2005 at 09:05
ThreadID: 22127 Views:1863 Replies:3 FollowUps:6
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Jim,

We were discussing at Robe the problem with the RB30 motor when running gas I think. Something to do with the splash plate? Is it only when running on gas?

Your technical expertise would be appreciated. A bloke has asked about any problems with running an RB30 on gas. Mine dropped a bit of that plate thingie into the motor and did heaps of damage. Can it be removed to stop this problem?

Thanks,

Jim.
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Reply By: Member - Chrispy (NSW) - Sunday, Apr 17, 2005 at 10:52

Sunday, Apr 17, 2005 at 10:52
I'm not running gas, but is that "plate thingy" you're talking about made of soft aluminium and about 1.5 mm thick and the size of a keyring fob? Where in the carby would it normally have sat?

I had to spend a couple of weekends and rip the head off mine to remove a chunk of this aluminium from deep in the inlet port to #3 piston. It was just floating around the valve guide and making a hell of a noise. I have no idea where it came from prior to the event. What a PITA.
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Follow Up By: Member - Jimbo (VIC) - Sunday, Apr 17, 2005 at 11:01

Sunday, Apr 17, 2005 at 11:01
Well have to wait for Diamond Jim for confirmation, but it sounds similar.
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Reply By: Diamond (Vic) - Sunday, Apr 17, 2005 at 12:02

Sunday, Apr 17, 2005 at 12:02
yes mate thats the one.
undo the carby and lift up the heater plate. remove and throw away the funny looking alloy platey thing as far as you can. if posible take for a long drive so theres no way it can find its way back to you.
i asked nissan ages ago about getting a new plate and they said jeez we been selling a few of them lately lol. no wonder.
all the plate does it to help atomise the fuel before going into the manifold not real important.
AnswerID: 107095

Follow Up By: Bonz (Vic) - Sunday, Apr 17, 2005 at 12:05

Sunday, Apr 17, 2005 at 12:05
Jim whats the Delkor battery part no for the 100a one?
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Follow Up By: Member - Jimbo (VIC) - Sunday, Apr 17, 2005 at 12:24

Sunday, Apr 17, 2005 at 12:24
Thanks Jim.
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Follow Up By: Diamond (Vic) - Sunday, Apr 17, 2005 at 15:18

Sunday, Apr 17, 2005 at 15:18
sorry bonz i cant remember the number its m something lol.
mr al will know.
cheers
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Follow Up By: Member - Bradley- Monday, Apr 18, 2005 at 18:40

Monday, Apr 18, 2005 at 18:40
hey bonz, give r&j batteries in ballarat a ring, they are the importers / distributers for delkor, and a good bunch to boot ! I'm thinking the m32 is about that size.
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Reply By: Member - Woodsy - Monday, Apr 18, 2005 at 07:21

Monday, Apr 18, 2005 at 07:21
Hi Jimbo,

I had a RB30 a few years ago. On one trip up near Mt Isa the engine started to lose power and appeared to be missing on one cylinder. After removing spark plugs found one had the electrode bent right back to the centre pin. Strange, me thought, as I had set the plugs before we left.
All went OK for about 50km and same scenario. Found another spark plug with bent pin and it looked shiny as though something had hit it. Reset gap and away we went.
Goddam! Happened again. Didn't have a clue to the problem. Reset plug gap and it never played up again.
Back in Melbourne, Russel Guest of Russel Guest 4 X 4 told me that it was this aluminium plate thingy disintergrating, going through the cylinders, and eventually out of the exhaust. It appears that a bit of the aluminium must have got on top of the piston and hit the spark plug electrode.
I had no damage to the engine, thank goodness, and the RB30 went like a dream 'til I
bought a GU 80,000km later.

Just my experience for your info.
Happy 4 wheeling

Woodsy

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Follow Up By: Member - Jimbo (VIC) - Monday, Apr 18, 2005 at 22:33

Monday, Apr 18, 2005 at 22:33
Woodsy,

You were lucky.

Mine caused major damage.

Cheers,

Jim.
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