195LikesNovarossi engines thread
02-12-2015, 12:14 PM
#4921
I have a question about the .12 Virtus
I bought one when it 1st came out. I probably have have about 3 gallons but I'm going on my 2nd main bearing already. I haven't over heated the engine but for what ever reason the bearing is going bad.
I ran at the Airtronics race last weekend and blew 2 glow plugs in the main. After checking the conrod, we discovered it has a little play and needs to be replaced. We measured the pin on the crank and it was within specs just in case it was worn.
What would cause my bearing to go out so fast? 2 $100+ bearing in less than 1 year is a pretty steep price to pay. I decided to just order the complete rebuild kit. Anyone have any ideas what would cause this?
I bought one when it 1st came out. I probably have have about 3 gallons but I'm going on my 2nd main bearing already. I haven't over heated the engine but for what ever reason the bearing is going bad.
I ran at the Airtronics race last weekend and blew 2 glow plugs in the main. After checking the conrod, we discovered it has a little play and needs to be replaced. We measured the pin on the crank and it was within specs just in case it was worn.
What would cause my bearing to go out so fast? 2 $100+ bearing in less than 1 year is a pretty steep price to pay. I decided to just order the complete rebuild kit. Anyone have any ideas what would cause this?
lean setting?
02-12-2015, 01:56 PM
#4922
02-12-2015, 02:14 PM
#4923
02-17-2015, 01:09 PM
#4924
Anyone know where I can find the Novarossi steel bearing 16608 for the Virtus?
02-18-2015, 04:38 AM
#4925
Tech Initiate
Hi all I have a strange problem with my plus 35. It's had around 20-25 litres run through it have changed rods an bearings regularly. But last club day went to start if and it kept locking up like a new motor. So I pulled it down everything looks fine no marks the rods perfect but the piston will only slide half way up the sleeve. An jams like it needs to be run in again. What could cause this can the piston expand and not shrink back?
02-18-2015, 05:21 AM
#4926
Hi all I have a strange problem with my plus 35. It's had around 20-25 litres run through it have changed rods an bearings regularly. But last club day went to start if and it kept locking up like a new motor. So I pulled it down everything looks fine no marks the rods perfect but the piston will only slide half way up the sleeve. An jams like it needs to be run in again. What could cause this can the piston expand and not shrink back?
02-20-2015, 08:13 AM
#4927
What's the best way to break in the Virtus after getting the rebuild kit? I just received a new P/S conrod and wanted to make sure I do it proper.
02-20-2015, 08:37 AM
#4928
02-20-2015, 08:40 AM
#4929
I have a question about the .12 Virtus
I bought one when it 1st came out. I probably have have about 3 gallons but I'm going on my 2nd main bearing already. I haven't over heated the engine but for what ever reason the bearing is going bad.
I ran at the Airtronics race last weekend and blew 2 glow plugs in the main. After checking the conrod, we discovered it has a little play and needs to be replaced. We measured the pin on the crank and it was within specs just in case it was worn.
What would cause my bearing to go out so fast? 2 $100+ bearing in less than 1 year is a pretty steep price to pay. I decided to just order the complete rebuild kit. Anyone have any ideas what would cause this?
I bought one when it 1st came out. I probably have have about 3 gallons but I'm going on my 2nd main bearing already. I haven't over heated the engine but for what ever reason the bearing is going bad.
I ran at the Airtronics race last weekend and blew 2 glow plugs in the main. After checking the conrod, we discovered it has a little play and needs to be replaced. We measured the pin on the crank and it was within specs just in case it was worn.
What would cause my bearing to go out so fast? 2 $100+ bearing in less than 1 year is a pretty steep price to pay. I decided to just order the complete rebuild kit. Anyone have any ideas what would cause this?
02-20-2015, 08:41 AM
#4930
Hi all I have a strange problem with my plus 35. It's had around 20-25 litres run through it have changed rods an bearings regularly. But last club day went to start if and it kept locking up like a new motor. So I pulled it down everything looks fine no marks the rods perfect but the piston will only slide half way up the sleeve. An jams like it needs to be run in again. What could cause this can the piston expand and not shrink back?
02-20-2015, 09:48 AM
#4931
Might be but my local Hobby shop only sells that fuel. Eric V has something to do with the company that makes it and it's been in use for years by a lot of the racers that ran at Norcal. Still I might have to switch because 2 bearings in 1 year is a lot.
02-20-2015, 09:50 AM
#4932
Is there a way of removing the bearing without using a bearing puller? Like using an oven for the Virtus? I don't have access to a puller at the moment so I'm looking for ways that won't hurt the engine.
02-20-2015, 10:47 AM
#4933
02-20-2015, 11:05 AM
#4934
Puller is by far the best method. Heating isn't really a good idea in my experience as it can damage the new bearing if you get the case too hot and if your only changing the rear bearing you can damage the cage on the front bearing.
Also without an insertion tool it is possible to slightly misalign the front and rear bearings even if using the crankshaft to install.
Try to find a buddy with a puller/insert tool (or invest in one as they pay for themselves very quickly!). You won't find the pros using the heat method!
Also without an insertion tool it is possible to slightly misalign the front and rear bearings even if using the crankshaft to install.
Try to find a buddy with a puller/insert tool (or invest in one as they pay for themselves very quickly!). You won't find the pros using the heat method!
02-20-2015, 11:17 AM
#4935
Thanks. I have a friend that let me use it last time. I haven't seen him in a while. i was thinking of purchasing one but 100 is a bit much.