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Hi there, I have a pretty standard 253 HQ. standard fuel pump and fuel line. Today the local mechanic changed over the rubber hoses near the carb, inline fuel filter and down by the fuel pump. Since then she has been running like a sick dog. I am going to call the guy in the monring. My question is that by changing the internal diamter of the rubber fuel hose would this be enough to 'starve' the carby and create these missing problems. or it could be a timing issue but the coincidence of this new fuel line is alittler hard to go past. What should the internal diameter of the fuel line be? cheers brian Rock n Roll Edited by user Thursday, 13 April 2006 6:45:02 AM(UTC)
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Rock n Roll |
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How could the change the inside diameter of the fuel hose as the new hose would still need to go over the existing connections on the fuel pump, filter and carby.
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Some times when I type what I think and what I type arn't the same so here goes again.
How could you change the inside diameter of the fuel hose, as the new fuel hose would still need to go over the existing fuel pump, filter and carby connections.
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What it could be is when the old fuel lines were taken off a bit of muck may have gone into one of the fittings and found it's way into carby,as for fuel line size it won't make any difference to running.
if it ain't broke we can improve it.
Cheer
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This is kind of dumb question. Is this inline filter ON the wrong way ? They have arrows indicating fuel flow.
I cant see new hoses causing grief unless the hoses leak, but u would notice that right?
John
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I thought of the filter question to but I thought who would be dumb enough to suff that up so I never asked it.
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Good question. intially it was on the wrong way round. would this casue all the sh*t in it to go into the carb?
I replaced the filter and the rubber grommet things while i was there as well and made sure it was facing the right way. Last nite i spra |
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KiwiHQ,
Its is possible that some plastic bits made there way up to the float, jamming the float needle slightly open. The original 253 came with a metal filter at the carb to stop this happening. Most guys toss them when they replace carbs or do upgra
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Just a quick update. After driving on the highway off and on for about an hour all the fuel (dirty) issues seem to have worked themselves out.
The top end came back first. Then the primarys were flooding. Then after the next burst the idle came back |
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Good to see it worked itself out but look at it this way your comming up to a set of traffic lights, the engine is missing and the lights are on yellow you think I can make it. You put down the foot and the engine misses and farts then nothing, mean while
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I had this happen (almost) I had filled up with petrol and the next day was approaching a set of lights to turn right, they had gone amber, I put my foot down to accelerate through, the engine farted and died, while still coasting i restarted it and went
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The other trick is that some breeds of fuel here in NZ are blended differently, and can really do the dirty to you engine settings. My old ute used to really cough and carry on when filled with BP 96 octane. The new optimax went ok, and the other manuf |
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