k4.6 factory needle settings

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Derek_2694

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well today i went to bash my truck out in the backyard and i noticed that the truck wasnt preforming right.so i went to adjust the high speed needle to lean it out because it was running too rich, when i noticed that my mid range needle backed out a lot. i don't know the factory setting of it to work from either. i also was wondering if my low speed needle has done the same thing so i also need the factory setting for that. thanks if anyone can help

derek

https://www.hpisavageforum.com/threads/nitro-engine-factory-settings.11154/
 

AllanQ

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k4.6 factory needles settings are:

HSN - flush with the line scribed on the brass barrel

MSN - flush with the carb body. I turn mine in about a half turn from flush.

LSN - flush with the housing.

the MSN on these motors like to walk. A little dab of rtv or something to hold it in place is what I recommend.
 
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Derek_2694

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thanks allan. yea the MSN looked like it was about to fall out. it was out about 1/8 inch. ive only taken out the LSN and the HSN to change the o rings in it.
 

Shaun

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i've always wondered why the mid range seems to like to back itself out when the hsn or lsn doesnt seem to do it?
 
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Derek_2694

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mabey the o rings aren't giving it a snug enough fit
 
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I sealed mine off at the same time I sealed my k4.6. It did the same thing a couple times and that was a couple times too much for me
 

AllanQ

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Clement could answer those questions better than I can. He still has the motor and would know the difference, if any, between the two.
 
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