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Messages - meanmachine

Pages: [1] 2 3 ... 9
1
Briggs Flathead / Re: oppy rods
« on: July 08, 2013, 06:17:57 pm »
yep I read that on heymow, that the briggs manual is wrong, so I believe there in right

2
Briggs Flathead / Re: oppy rods
« on: July 02, 2013, 10:53:25 pm »
I think so

3
Briggs Flathead / oppy rods
« on: June 29, 2013, 04:53:54 pm »
I have a 42 oppy that I built as per g team video and rooster oil mods, billet flywheel with a stock cam exhaust springs on both intake and exhaust and 40 rods with shortened 28 pistons, now Ive  scored the  stock lower rod twice on this engine, what is the cheapist way to get this back on the track, my problem is that the arc rods are made for 42 right, and my pistion are shaved and will come up short, right? I really don't want to again buy new piston and rings and rods is there any way I could use my pistions that are all ready shaved, with arc rods, I may have access to all three crank shafts 40,42,46 just thinking out loud would a 46 crank and 42 rods get me close to the same as a 42 crank and 40 rods? where a could reuse my pistons with arc rods

4
Honda and Clone Engines / what make and size spark plug
« on: May 20, 2013, 07:44:05 pm »
what make and size spark plug should a guy run in a 6.5 hp harbor freight clone hoz. engine this is for a racing cart on racing gas

5
Briggs Flathead / Re: 16.5 opposed twin
« on: May 16, 2013, 06:19:06 pm »
you can download the oppy manual under the flathead section,one of the first few post, I think roosters oil mod post is there too if it isn't it should be, g- team also has a dvd that is helpful

6
Briggs Flathead / flat head briggs
« on: May 13, 2013, 11:14:39 pm »
I know this is not a kart forum, just pick up my first racing kart(because we only race or mowers a couple times a year) it has a flat head briggs that runs on methanol, I know there a lot of smart people on this forum that maybe could answer some of my questions, what kind of head temp should I be looking for, I hav no idea what has been done to he inside of the engine, but was built by racing engine builder, what kind of rpms should I be try to maintain? any thing you can tell me about a flat head brigg kart motor may help, again I understand this is not a kart forum but I see a lot of the same thing done to this motor as I did to my oppy

7
Briggs Flathead / Re: My Experiance with Briggs Opposed Twins!
« on: May 13, 2013, 10:56:15 pm »
I put a remote fuel pump on my oppy and remove the stock one you may be able to use your carb you have with a couple mods and a remote fuel pump, does it have a arc flywheel? the hub on mine slipped alittle (because the bolt where not tight enough)

8
Briggs Flathead / Re: Copper Exhaust..
« on: December 16, 2012, 07:46:29 pm »
Lookin' forward to the pics!  Could you tell me the proper flux to silver solder copper pipes?  I have an oxy/act torch and some flat sticks (don't remember the silver %) of silver solder already.
Garry
[/quote
 you should not need flux with silver solder just make sure your copper is clean i would braze the joints if there not socket welds if you use copper wire for rod you could polish the joints they would appear seamless i think its very hard to weld copper with copper though, seen it done on tv one time

9
Briggs Flathead / Re: Re-use rods
« on: December 05, 2012, 06:29:24 pm »
I was checking and the Geo Metro has a 1 L engine. I may pick some up after work and  tinker with it tonight.


yep the geo bearing are what i have looked into also, you can get undersized rod bearing, my local napa give me all the specs of the bearing for the geo let me know if they work for you i still need to put the rods back in my motor.

10
Briggs Flathead / Re: Re-use rods
« on: December 05, 2012, 07:36:44 am »
beware of the stock rods either machine them for automotive type bearing inserts or buy arc rods, i can tell you i have seized two lower rods on my oppy with the proper clearances,i built my 42 oppy with stock 40 rods and cut the pistons down, just as don explains in his 101 dvd (btw the dvd was made before the arc rod for oppys were out) i would be money ahead if i just would have invested in the arc rod up front  :bash: trust flathead puller he is full of good info 8) just my 2 cents

11
Coffee Shop / Re: BILLET RODS
« on: August 20, 2012, 07:15:15 pm »
sure would be nice to get a set of oppy rods the same length as a 40 rod that would sure help me out then i wouldn't have to throw out the new pistons and rings i have in my oppy now to switch to arc rods. so i like to know the answer as well

12
Briggs Flathead / Re: OPPY ROD #2
« on: August 08, 2012, 07:31:19 am »
how did you get the alm off the crank after the first rod failure?

I am guessing the crank still had smear

my local machine shop clean the crank.

13
Briggs Flathead / Re: OPPY ROD #2
« on: August 07, 2012, 11:12:58 pm »
I have been running stock 42 rods with heavy .030 pistons in mine all season, no wear other than cylinder walls. 

Did you measure the crank journal to ensure it is perfectly round?  What kind of scoring?  Deep and Even, or do you see a crater or "pit" with a "stream" behind it?  Any discoloration of the rod journal or the connecting rod?

Oil Level? Oil Type? End play measurement? Bent Crank? Just thinking.  Lower Journal IS unusual.
oil right on, end unsure, but do you think end play could seize the lower rod? very even not real deep. on discoloration yep

14
Briggs Flathead / OPPY ROD #2
« on: August 07, 2012, 10:12:29 pm »
ok i seize two stock rods on my 42 oppy both the lower rods thought the first rod was out of round after honing,installed a new one and score that rod but look very different than the first completely scored all the way around very even. what did i do wrong? oil hole facing the slinger side of engine? yup. rod clearance .004 yup.
all rooster oil mods? yup. i know, i know, i should of put arc rods in, hind sight is aways 20/20 but i have new shaved pistons and 40 rods so the way i see it i can only run arc rods if i install new pistons and rods and sell the one i have for scrap. i'm i wrong by saying that others have run stock rods and made an oppy live? why the lower rod not the top rod? help me please

15
Coffee Shop / Re: what is this piece called?
« on: July 23, 2012, 08:13:59 pm »
instead of cutting off the second tap, you can instead purchase a bottoming tap.
ditto

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