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Post by paulskirocks on Sept 17, 2009 18:43:14 GMT -5
So, are what you HF Clone owners running the valve lash at?
Thanks!
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Post by Brad Wunder on Sept 17, 2009 18:55:26 GMT -5
Me thinks Paulski is screwing off in his garage playing with his new motor instead of working....oh wait, that's what I'm supposed to be doing too....nevvvvvvvvvvvermind. ;D
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Post by paulskirocks on Sept 24, 2009 10:20:27 GMT -5
No answers??!! I'm guessing zero is where I will start...
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Post by brad42 on Sept 24, 2009 10:46:44 GMT -5
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Post by paulskirocks on Sept 24, 2009 10:53:02 GMT -5
Well, it was an educated guess after I found the same link!  |
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Post by jason45 on Sept 26, 2009 0:53:44 GMT -5
Technically you need to leave it alone, all motors are to remain as they are "out of the box"
The race at Kinsmen this weekend may be the first claimer race with tech to be involved.
As a favor to the rest of the box stock guys, who take it out of the box and bolt it on, please do not change the original settings that the engine is set at. Take out or disconnect the governor, and leave the rest of the internals alone. Change the jet if you must add the approved pipe and air cleaner but do not tamper with the "out of the box" settings
Thanks!
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Post by Simon on Sept 26, 2009 1:19:36 GMT -5
So I guess that means no valve lapping either. I was thinking of doing that, but if we realy have to leave the internals alone I'll keep it all buttoned up.
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Post by paulskirocks on Sept 26, 2009 9:19:37 GMT -5
Jason, setting the valve lash is necessary on any motor, whether out of the box, or after a couple races. I suppose I can never change the spark plug either once it is shot??!! Box Stock does not mean I am at the mercy of the guy who built it and forgot to tighten something! I am not going to run my motor all season without checking valve lash. THAT would be lame, and could cause premature failure. Setting, or at least checking the valve lash is STANDARD maintenance on any motor, regardless of horsepower.
Simon, lapping the valves is a different issue, as you are actually taking out material in the process. Checking/setting valve lash is no different than making sure your chain is the correct tension, as it will change as time goes on...
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Post by paulskirocks on Sept 26, 2009 9:28:35 GMT -5
Further, I say do yourself a favor while you are yanking out the governor and low oil sensor, and check the rod bolts, as well. This is in no way against the spirit of the rules, just as checking valve lash is not, either. It is simply realizing that the level of quality control is not up to snuff, and eliminating a potential problem.
If you feel that the valve lash should be never set, then you will have to have a sealed motor class, and we can all run our motors with no maintenance until they blow up...
As a favor to the rest of the clone guys, we should ALL learn to do the basic maintenance of these motors...
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Post by paulskirocks on Sept 26, 2009 9:45:33 GMT -5
You know, I'm bothered enough to cut and paste from the RULES:
Valve Train: Stock valve cover only with any stock configuration gasket, no sealer.
Factory stock rocker arms and push rods only. Stock valves only 45 degree angle only both valves, no modifications allowed. Only Box Stock valve springs only. Max wire diameter on spring wire is .0698” with a maximum tension of 10.8 lbs. at a height of
.850”.
Camshaft Requirements: Stock as cast camshaft only.
Max Intake lift on cam .225” taken at the pushrod.
Max Intake lift at the valve .238” Taken on valve spring retainer with zero lash.
******************************************
Max Exhaust lift on cam .232” taken at the pushrod.
Max Exhaust Lift at the valve .242” Taken on valve spring retainer with zero lash.
(Additional cam checks will likely be added later)
Special note. Valve guide wear can give false valve lift readings when checking off the front of the valve spring retainer. It is advised to take readings at several other points around the retainer (back, and both sides) if wear is suspected of giving a false, unfavorable reading.
No where does it say that we can't or shouldn't set lash. To say that it shouldn't be set is NOT in the rules, and would be foolish.
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Post by karlznet on Sept 26, 2009 11:03:32 GMT -5
Relax Paul I'm pretty sure maintaining valve lash is allowed. Having a rule against adjusting valve lash would be like a rule against adjusting your drive chain. Hurry up and get your clone finished so you can come out and mow with the rest of us! ~Karl
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Post by paulskirocks on Sept 26, 2009 11:19:05 GMT -5
Karl, if I relax, I might not get back up!! Anyways, I can't help myself... It's a sickness, and I'm the carrier...  SO, I am excited about my order of stuff from ARC, which will be here next week... Mike already helped me to remove the governor and low oil sensor, tapping the valve cover, and tapping where the governor piece is removed... OK, hid did all the work, and I watched... Next, I'll have to get to Davis on the Friday before the Sunday, October 18th and break this mega-motor in... Oh yea... I need tires... Yee haaaahhh... I will be doing my part to hold down last place... Let the sand bagging begin! By the way, I applaud the claimer rule in a class like this! Thanks for hashing out all the details. |
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Post by jason45 on Sept 26, 2009 11:24:32 GMT -5
Just to be clear..... This "will" be a claimer class. We are checking into a set of tech tools, however, they are expensive. I would like this to go into effect this weekend, but it may not due to lack of the proper tools. Next season there will be a claim on the class and full tech. We are playing it by ear for the rest of the year until we can gather all tools needed.
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Post by jason45 on Sept 26, 2009 11:29:56 GMT -5
Paul- I see your need to adjust for maintenance, however myself and the majority of the other "cloners" do not check things like that due to "keeping it stock". Maybe that's why the Duffy's and myself have gone through a few of these clones already? Valve lash or dirt getting sucked in?
Thanks for the interest in "Maintenance" maybe this will keep some of us with one motor for longer!
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Post by paulskirocks on Sept 26, 2009 11:44:28 GMT -5
Cool, Jason. I think there are a bunch of us that would be happy to help in this area. I figure that I want my motor to last as long as possible, even if it is an inexpensive motor.
And, yes, I forgot to adjust my lash in my F200 before last race and it loosened enough to pierce a rocker. Even in a low horsepower engine, the valve lash will change. Too tight, and you not only lose power, you can burn a valve. Too loose, and it puts the rockers and push rods in jeopardy... Remember that these motors were designed to run with a governor, not pushed to the limit or floating valves, so maintenance is necessary and rewarding!
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