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Model Forum / Radio Controlled / Land Models / April 2006How often do you change Conrod?
I was told that the Conrod needs to be changed fairly often in nitro engines, as often as every 1-1/4 gallon. I am just wondering how often the people here do so. . . Thanks. .. . >I was told that the Conrod needs to be changed fairly often in nitro > engines, as often as every 1-1/4 gallon. I am just wondering how often > the people here do so. . . Thanks. .. . You never need to change the conrod, unless it breaks, in which case you need a new engine anyway :-)  SignatureDan >>I was told that the Conrod needs to be changed fairly often in nitro >> engines, as often as every 1-1/4 gallon. I am just wondering how often >> the people here do so. . . Thanks. .. . > >You never need to change the conrod, unless it breaks, in which case you >need a new engine anyway :-) With that thinking, wouldn't one want to change it on some regular basis, to avoid having to replace the entire engine? >>>I was told that the Conrod needs to be changed fairly often in nitro >>> engines, as often as every 1-1/4 gallon. I am just wondering how often [quoted text clipped - 5 lines] > With that thinking, wouldn't one want to change it on some regular > basis, to avoid having to replace the entire engine? They don't usually snap, so, no :-) If they do, it's either a very old engine, or a duff engine. I've never had one go, and neither have any of the lads I run with so, I wouldn't bother. Spend the money on replacing diffs and the like. SignatureDan >They don't usually snap, so, no :-) > >If they do, it's either a very old engine, or a duff engine. I've never had >one go, and neither have any of the lads I run with so, I wouldn't bother. >Spend the money on replacing diffs and the like. Sounds good, how many gallons have you run throught your most-used engine, without a con rod change? Thanks... >>They don't usually snap, so, no :-) >> [quoted text clipped - 5 lines] > Sounds good, how many gallons have you run throught your most-used > engine, without a con rod change? Thanks... I'm not sure, I usually get bored of engines before they're used up and sell them on for summet else :) Piston and liner is what wears out. That varies depending on the engine, the use, the fuel, luck of the draw! I beleive Doc has a 9 gallon old S-25 engine that has run well through out.... SignatureDan I have a POS traxxis with 6 gallons through it >>>They don't usually snap, so, no :-) >>> [quoted text clipped - 12 lines] > beleive Doc has a 9 gallon old S-25 engine that has run well through > out.... >>They don't usually snap, so, no :-) >> [quoted text clipped - 5 lines] > Sounds good, how many gallons have you run throught your most-used > engine, without a con rod change? Thanks... HPI S-25 in a Savage, 9+ gallons and still running strong Sportwerks .26 with around 2.5 gallons and still running strong The conrod will NOT break unless it's defective, you over-rev the engine or you hydrolock it. I have never heard of pre-emtively replacing the conrod and would highly suggest against it. Spend the money on stocking replacement parts that will puke like diffs and dogbones. Doc |
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