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2H question

Tech Talk for Cruiser owners.

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2H question

Post by Reddo »

G’day guys, just a quick question. I just rebuilt my 2H, and I was wondering how long it takes to put up the oil pressure? Will it only do it when the motor is going, or should it pump it up when you turn the motor over on the starter?
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Post by Sixty »

Hold the fuel rack in the 'no fuel' position and crank it over a few times to get the oil around the engine.
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Re: 2H question

Post by dumbdunce »

Reddo wrote:G’day guys, just a quick question. I just rebuilt my 2H, and I was wondering how long it takes to put up the oil pressure? Will it only do it when the motor is going, or should it pump it up when you turn the motor over on the starter?


it can take a long time of cold cranking. if you assembled the engine with assembly lube and/or plenty of oil, don't be afraid to fire it up, watch the pressure and if it doesn't come up within say 10 seconds of running, you have a problem.
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Post by Reddo »

How long are we talking cold, i have had the Glow plugs out and cranked it over 50 times, and still getting nothing. dad ripped out the oil pressure bung, (on the bottom of the motor, which connects the mail oil feed pipe to the block) and we cranked it over and still getting nothing. We have placed oil down this hole to try and prime the pump, but it still wont push oil out of this hole as you would expect.
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Post by Sixty »

the oil pickup isnt still on the bench somewhere is it......? :D
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Post by Reddo »

Sixty wrote:the oil pickup isnt still on the bench somewhere is it......? :D


Nope, i can not work it out. I mean everything was put back right, and double checked........ thats why its got me farked......
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Post by dumbdunce »

Reddo wrote:How long are we talking cold, i have had the Glow plugs out and cranked it over 50 times, and still getting nothing. dad ripped out the oil pressure bung, (on the bottom of the motor, which connects the mail oil feed pipe to the block) and we cranked it over and still getting nothing. We have placed oil down this hole to try and prime the pump, but it still wont push oil out of this hole as you would expect.


50 revolutions might not be enough. start it, see how it goes. I have built motors that I have cranked for hundreds of revolutions without any oil pressure showing up and then just starting them and up it goes. if the seal clearances in the oil pump are even slightly worn then it takes some velocity to get up any pressure.
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Post by Reddo »

dumbdunce wrote:
50 revolutions might not be enough. start it, see how it goes. I have built motors that I have cranked for hundreds of revolutions without any oil pressure showing up and then just starting them and up it goes. if the seal clearances in the oil pump are even slightly worn then it takes some velocity to get up any pressure.


This is what im thinking..... im about to try it now, so i will see how it goes.
Thanks very much for your advise :)

James :cool:
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Post by Reddo »

Its all good now, so dont worry about it. It pumped up after the motor had been running.

Ill be back later, cos im still working on it.

Thanks Guys :D
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Post by dumbdunce »

Reddo wrote:Its all good now, so dont worry about it. It pumped up after the motor had been running.


I am a prophet ;)

good work. is this in your 40?
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Post by Reddo »

dumbdunce wrote:
I am a prophet ;)



:rofl: yes you are



dumbdunce wrote:
good work. is this in your 40?



Yeah its for the BJ40, finally got it going after three months of sitting around the shed...... its got 10mm between the motor and the fire wall, and its about the same for the fan and radiator. Most people said to put the 40 radiator back in, but because the radiator Inlet and Outlets were on the other side to the motor inlets and outlets, I fitted the 60 series radiator in. So now it’s got 2H power, disk brakes and power steering :D

It sound TOUGH and goes really well, which is a worry because its suddenly has power tooo burn :twisted:

Thanks for the help, i was shit scared of farking it up after all that hard work :cool:
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Post by quick60 »

Reddo wrote:So now it’s got 2H power


Whats that ?? :rofl:
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Post by Shadow »

quick60 wrote:
Reddo wrote:So now it’s got 2H power


Whats that ?? :rofl:


yeh LOL

with 33's fitted i've started going backwards with the mighty power of the 2H LOL

althgough the 8% overdrive with 33's is welcome at 100, its just getting to 100 thats the problem :)
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Post by Reddo »

Shadow wrote:
quick60 wrote:
Reddo wrote:So now it’s got 2H power


Whats that ?? :rofl:


yeh LOL

with 33's fitted i've started going backwards with the mighty power of the 2H LOL

althgough the 8% overdrive with 33's is welcome at 100, its just getting to 100 thats the problem :)


Yeah, well compared to the shagged 1b it used to have, this motor is way better :D
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