RE: This cannot be good
I feel good!!! After a steep learning curve / nitro engine crash course I got my 4.6/.28 Pro installed in my MGT and it started first pull. I only ran it for about 15 seconds as it was late at night so I ran it in my garage to keep the sound down (fumes were strong). I am so thrilled with myself that I took apart my engine, cleaned it, sealed it, reinstalled it and ran it again after all this. I was worried that it would not work at all after all the fiddling I did. I am going to tune it tomorrow and see if I can get it to idle for half a tank. If it does, then I am going to see if i can run it around for a full tank. I have yet to get through a full tank. It usually runs great for 5 mins or so and then stalls. When this happens it is very hard to start again unless it sits for a while. This apparently means it is running too hot. I found my point and click temp gun so now I can actually measure the temperatures when I tune it tomorrow. The manual says it should run between 220 and 260. I will post another update letting you know.
In some ways I am hoping I can continue to use my 4.6 engine for a while longer and take back the .32 to save some money as the cost to repair my used MGT if including the new engine is as much as buying one brand new. No regrets as I have enjoyed learning how to repair and am more comfortable than ever with RC Nitro. On the other hand everything I hear about the .32 Axial suggests it is WAY more powerful than stock which is tempting to install even if I get the 4.6 totally up and running reliably. Would be a shame though to do this and come away being disappointed with the performance gain as I am already impressed with the 4.6 (I really hauls and I am having a hard time imagining even more power).
I will be in touch with an update.
BTW...I had a HELL of a time getting one of the engine mount screws out tonight. 3 trips to the hobby shop and 2 to the hardware store to drill the bugger out took well over 2 hours. Good news is I have all the tools to get stripped nut, bolts and screws in the future. I picked up a cheap gear puller to as I know I will need it to pull off the flywheel one day.