2LikesGo-Tech Engines Thread
01-16-2010 | 08:56 PM
#9782
I'v now passed the 20 ltr mark with my MG66.
Still original main bearing and rod, spare's still in my box.
The boss (Mark) asked me to bring her in for a measure up etc...
MM asked, you sure you been running this thing, if it wasn't for the carbon around the porting he would have assumed it was new.
Main bearing still fine, no slop on conrod/crank pin....crank pin wear measured only 0.003mm after 20+ littres
or was it 0.0003mm ?
I'm not sure if I'v typed that rite, I'm sure Mark will correct me.
Still original main bearing and rod, spare's still in my box.
The boss (Mark) asked me to bring her in for a measure up etc...
MM asked, you sure you been running this thing, if it wasn't for the carbon around the porting he would have assumed it was new.
Main bearing still fine, no slop on conrod/crank pin....crank pin wear measured only 0.003mm after 20+ littres
or was it 0.0003mm ?
I'm not sure if I'v typed that rite, I'm sure Mark will correct me.
01-17-2010 | 08:24 AM
#9785
Tech Master
iTrader: (47)
Joined: Jan 2006
Posts: 1,807
From: Virginia
Looks like "will g" is giving up on the GO engines.
He's got some great prices on the GO engines
and parts he's dumping though.
http://www.rctech.net/forum/r-c-item...rger-more.html
He's got some great prices on the GO engines
and parts he's dumping though.
http://www.rctech.net/forum/r-c-item...rger-more.html
01-17-2010 | 12:43 PM
#9787
Thread Starter
Tech Master
Joined: Jan 2006
Posts: 1,977
From: Sydney
Well, you can't argue with that.
The guy who owns the show should know whats going on (hopefully
).
We were told different, but it seems there was some confusion on this subject. You have to believe what the guy at the top says is correct.
I will bake up a little serving of humble pie for dessert tonight
Thanks for sorting that out Trey.
Just as a footnote: With the Govarossi motor, we tried a 21-0600 rod on the Nova crank, but it was a little sloppy (worn crank pin maybe we thought). We tried a 28-0600 rod and it was a real nice fit ?? Just a difference in tolerances between batches maybe? I don't really wanna know. End of debate as far as I'm concerned, but I will still be keeping the older 28-0600 rods in stock just in case the big guy got misinformed too
The guy who owns the show should know whats going on (hopefully
).We were told different, but it seems there was some confusion on this subject. You have to believe what the guy at the top says is correct.
I will bake up a little serving of humble pie for dessert tonight
Thanks for sorting that out Trey.
Just as a footnote: With the Govarossi motor, we tried a 21-0600 rod on the Nova crank, but it was a little sloppy (worn crank pin maybe we thought). We tried a 28-0600 rod and it was a real nice fit ?? Just a difference in tolerances between batches maybe? I don't really wanna know. End of debate as far as I'm concerned, but I will still be keeping the older 28-0600 rods in stock just in case the big guy got misinformed too
As Previously Mentioned the Rod and Crank tolerance change was made during the Gen 5 phase of engine build. The Part number remained the same till the Gen 5.5 was released then the same rod was changed in part number. So there is no need for Humble Pie , the information that was given is correct.
The fact that you tried a 21-0600 and found it was sloppy means its a larger diameter than the original 28-0600 illustrating my point , id say the rod you had was before the tolerance change , the way to tell other than measiuring it is to look at the bottom yoke and lightening groove , the 28-0600 the groove dosent square off or it may have no groove at all , the newer ones with larger bottom yoke does.
NOW realise that the 28-0600 is still in production but its been relegated the number of the RTR Rod , its not meant to be in the GX or MG range of engines. . It shares the new dimensions changed in the range of rods and crank pins.
I hope this clears things up.
Cheers MM
01-17-2010 | 12:49 PM
#9788
Thread Starter
Tech Master
Joined: Jan 2006
Posts: 1,977
From: Sydney
Yes GX Carbs are retrofittable back to gen 5
Regarding Go Rods in other engines , you will probably find that as long as the engine you want to fit it to has a yoke centre measurement of 29.50 mm there is a good chance it will work. You can also use a Hyper .21 rod in a nova as long as the cranks worn a tad . You can also try using a Force .25 rod in a CMB .21 marine engine they are interchangeable.
Lots ao parts are interchangable as standards are very similar across the board
Last edited by MassiveMods; 01-17-2010 at 12:59 PM.
01-17-2010 | 01:15 PM
#9789
Tech Elite
Joined: Nov 2007
Posts: 2,983
From: Auckland, New Zealand
As Previously Mentioned the Rod and Crank tolerance change was made during the Gen 5 phase of engine build. The Part number remained the same till the Gen 5.5 was released then the same rod was changed in part number. So there is no need for Humble Pie , the information that was given is correct.
The fact that you tried a 21-0600 and found it was sloppy means its a larger diameter than the original 28-0600 illustrating my point , id say the rod you had was before the tolerance change , the way to tell other than measiuring it is to look at the bottom yoke and lightening groove , the 28-0600 the groove dosent square off or it may have no groove at all , the newer ones with larger bottom yoke does.
NOW realise that the 28-0600 is still in production but its been relegated the number of the RTR Rod , its not meant to be in the GX or MG range of engines. . It shares the new dimensions changed in the range of rods and crank pins.
I hope this clears things up.
Cheers MM
The fact that you tried a 21-0600 and found it was sloppy means its a larger diameter than the original 28-0600 illustrating my point , id say the rod you had was before the tolerance change , the way to tell other than measiuring it is to look at the bottom yoke and lightening groove , the 28-0600 the groove dosent square off or it may have no groove at all , the newer ones with larger bottom yoke does.
NOW realise that the 28-0600 is still in production but its been relegated the number of the RTR Rod , its not meant to be in the GX or MG range of engines. . It shares the new dimensions changed in the range of rods and crank pins.
I hope this clears things up.
Cheers MM
It's all good here. GX motors are TQ'ing and winning club events, and everyone is more than impressed with the motors they have purchased, plus the MG66's are starting to turn some heads too
It all looks good for 2010
01-17-2010 | 02:12 PM
#9790
Thread Starter
Tech Master
Joined: Jan 2006
Posts: 1,977
From: Sydney
Cheers Massive, I thought that piece of pie was hard to swallow. It just didn't want to go down Ha ha
It's all good here. GX motors are TQ'ing and winning club events, and everyone is more than impressed with the motors they have purchased, plus the MG66's are starting to turn some heads too
It all looks good for 2010
It's all good here. GX motors are TQ'ing and winning club events, and everyone is more than impressed with the motors they have purchased, plus the MG66's are starting to turn some heads too
It all looks good for 2010
And Cheers Re the MG .. we Just had a TQ and Podium in Penang recently with it , the Malaysians are very happy with the engine so far !
Cheers MM
01-17-2010 | 02:19 PM
#9791
Yes GX Carbs are retrofittable back to gen 5
Regarding Go Rods in other engines , you will probably find that as long as the engine you want to fit it to has a yoke centre measurement of 29.50 mm there is a good chance it will work. You can also use a Hyper .21 rod in a nova as long as the cranks worn a tad . You can also try using a Force .25 rod in a CMB .21 marine engine they are interchangeable.
Lots ao parts are interchangable as standards are very similar across the board
Regarding Go Rods in other engines , you will probably find that as long as the engine you want to fit it to has a yoke centre measurement of 29.50 mm there is a good chance it will work. You can also use a Hyper .21 rod in a nova as long as the cranks worn a tad . You can also try using a Force .25 rod in a CMB .21 marine engine they are interchangeable.
Lots ao parts are interchangable as standards are very similar across the board
01-17-2010 | 02:20 PM
#9792
Thread Starter
Tech Master
Joined: Jan 2006
Posts: 1,977
From: Sydney
Hey All
We have some excellent news , we have the MG66 being tested by an indipendant company in the USA . They have 2 MG66 engines that will be thrashed to the bejesus , dyno tested , endurance tested and any other kind of mad cruelty that can be dished out, This is basically what they do for a living so we are really excited about the results we will get !
Stay Tuned !
M
We have some excellent news , we have the MG66 being tested by an indipendant company in the USA . They have 2 MG66 engines that will be thrashed to the bejesus , dyno tested , endurance tested and any other kind of mad cruelty that can be dished out, This is basically what they do for a living so we are really excited about the results we will get !
Stay Tuned !
M
