1LikesGo Engine USA 2011 Thread
07-08-2011 | 02:34 PM
#1771
Tech Initiate
Joined: May 2010
Posts: 23
From: New Zealand
Ha ha - good news travels fast 
. Yes it was pretty impressive on the track. It just hauled from start to finish in a big smooth rush of power.
I have several MG66 PRS sets in stock.
With that front bearing, it may be oozing a little due to the motor being rich still. If you put plenty of oil in the motor (pre lube as you did), it is also quite common for the oil to seep out of the front bearing.
If itīs just seeping out and not leaving the motor really wet underneath after you have run it, it is probably OK - still at only $15 for a new one itīs not a biggie to replace it just in case.
Do you know someone with a bearing tool to make the job easy ?
Hopefully we can catch up at the track and put a tune on that motor for you - when this bloody rain stops. At 18 tanks it is more than ready to be tweaked
. Yes it was pretty impressive on the track. It just hauled from start to finish in a big smooth rush of power.I have several MG66 PRS sets in stock.
With that front bearing, it may be oozing a little due to the motor being rich still. If you put plenty of oil in the motor (pre lube as you did), it is also quite common for the oil to seep out of the front bearing.
If itīs just seeping out and not leaving the motor really wet underneath after you have run it, it is probably OK - still at only $15 for a new one itīs not a biggie to replace it just in case.
Do you know someone with a bearing tool to make the job easy ?
Hopefully we can catch up at the track and put a tune on that motor for you - when this bloody rain stops. At 18 tanks it is more than ready to be tweaked
I have a bearing puller kit so I should be able to change it. ( Im a fitter welter and have worked for 12 years recoing gearboxes so I should be able to do it)
Cheers
Stu
07-08-2011 | 02:50 PM
#1772
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07-08-2011 | 04:37 PM
#1773
Tech Elite
Joined: Nov 2007
Posts: 2,983
From: Auckland, New Zealand
Yea the front bearing only has a slight weep so I will save it for when I change the rod and fit the ceramic rear bearing as well.
I have a bearing puller kit so I should be able to change it. ( Im a fitter welter and have worked for 12 years recoing gearboxes so I should be able to do it)
Cheers
Stu
I have a bearing puller kit so I should be able to change it. ( Im a fitter welter and have worked for 12 years recoing gearboxes so I should be able to do it)
Cheers
Stu
07-10-2011 | 11:52 AM
#1774
Sorry for long post.
First 1:8 scale with my own equipment is under my belt. As I had no experience with nitro engines it affected my results for sure. In practice I was able to stay out for about 9 minutes with RB 30% fuel and with GRP pipe (got GO pipe on way, unfortunately it didn't arrive in time). I ended up 8th after qualifiers (and also after final) when engine went flawlessly and I've been getting used to the track (everyone raced there before so it was certainly disadvantage for me). Anyway problem arise in semi when I had quite many cuts (as we found out halfway through semi - glow plug came loose). Even after tightening it, I had 2 cuts later. Final went even worse with 6 cuts.
The case was - it was damn extremely hot and apart from winner everyone suffered at least one cut off. After the race when I talked with my dad about causes we came to conclusion that I might had too open low needle (they opened it a bit twice during semi before finding out that plug is loose and we didn't reset it back). During final at first stop my engine temped at 97C which I belive isn't very hot (and I guess it was the same for rest of the final). Uhm and after refuelling that's when I suffered cuts. As I tried to rejoin track I opened throttle and it died. Can it be possible that opening throttle caused fuel to cool engine too much? Or what else do you suggest? As I said almost all cuts appeared after pits (not revving much thus possible cooling down) and basically all of them appeared after opening throttle fully very quickly.
First 1:8 scale with my own equipment is under my belt. As I had no experience with nitro engines it affected my results for sure. In practice I was able to stay out for about 9 minutes with RB 30% fuel and with GRP pipe (got GO pipe on way, unfortunately it didn't arrive in time). I ended up 8th after qualifiers (and also after final) when engine went flawlessly and I've been getting used to the track (everyone raced there before so it was certainly disadvantage for me). Anyway problem arise in semi when I had quite many cuts (as we found out halfway through semi - glow plug came loose). Even after tightening it, I had 2 cuts later. Final went even worse with 6 cuts.
The case was - it was damn extremely hot and apart from winner everyone suffered at least one cut off. After the race when I talked with my dad about causes we came to conclusion that I might had too open low needle (they opened it a bit twice during semi before finding out that plug is loose and we didn't reset it back). During final at first stop my engine temped at 97C which I belive isn't very hot (and I guess it was the same for rest of the final). Uhm and after refuelling that's when I suffered cuts. As I tried to rejoin track I opened throttle and it died. Can it be possible that opening throttle caused fuel to cool engine too much? Or what else do you suggest? As I said almost all cuts appeared after pits (not revving much thus possible cooling down) and basically all of them appeared after opening throttle fully very quickly.
07-10-2011 | 12:05 PM
#1775
Sorry for long post.
First 1:8 scale with my own equipment is under my belt. As I had no experience with nitro engines it affected my results for sure. In practice I was able to stay out for about 9 minutes with RB 30% fuel and with GRP pipe (got GO pipe on way, unfortunately it didn't arrive in time). I ended up 8th after qualifiers (and also after final) when engine went flawlessly and I've been getting used to the track (everyone raced there before so it was certainly disadvantage for me). Anyway problem arise in semi when I had quite many cuts (as we found out halfway through semi - glow plug came loose). Even after tightening it, I had 2 cuts later. Final went even worse with 6 cuts.
The case was - it was damn extremely hot and apart from winner everyone suffered at least one cut off. After the race when I talked with my dad about causes we came to conclusion that I might had too open low needle (they opened it a bit twice during semi before finding out that plug is loose and we didn't reset it back). During final at first stop my engine temped at 97C which I belive isn't very hot (and I guess it was the same for rest of the final). Uhm and after refuelling that's when I suffered cuts. As I tried to rejoin track I opened throttle and it died. Can it be possible that opening throttle caused fuel to cool engine too much? Or what else do you suggest? As I said almost all cuts appeared after pits (not revving much thus possible cooling down) and basically all of them appeared after opening throttle fully very quickly.
First 1:8 scale with my own equipment is under my belt. As I had no experience with nitro engines it affected my results for sure. In practice I was able to stay out for about 9 minutes with RB 30% fuel and with GRP pipe (got GO pipe on way, unfortunately it didn't arrive in time). I ended up 8th after qualifiers (and also after final) when engine went flawlessly and I've been getting used to the track (everyone raced there before so it was certainly disadvantage for me). Anyway problem arise in semi when I had quite many cuts (as we found out halfway through semi - glow plug came loose). Even after tightening it, I had 2 cuts later. Final went even worse with 6 cuts.
The case was - it was damn extremely hot and apart from winner everyone suffered at least one cut off. After the race when I talked with my dad about causes we came to conclusion that I might had too open low needle (they opened it a bit twice during semi before finding out that plug is loose and we didn't reset it back). During final at first stop my engine temped at 97C which I belive isn't very hot (and I guess it was the same for rest of the final). Uhm and after refuelling that's when I suffered cuts. As I tried to rejoin track I opened throttle and it died. Can it be possible that opening throttle caused fuel to cool engine too much? Or what else do you suggest? As I said almost all cuts appeared after pits (not revving much thus possible cooling down) and basically all of them appeared after opening throttle fully very quickly.
07-10-2011 | 12:52 PM
#1776
Sorry for stupid questions, but as I said I'm complete newbie when it comes to nitro stuff. I raced only electric cars for years.
Uhm and if someone is thinking about this engine. Don't let yourself discourage by my posts. Engine ran amazingly well and was with nice powerband. It's really just down to my inexperience and extreme conditions yesterday
07-10-2011 | 01:01 PM
#1777
Joined: Dec 2009
Posts: 7,916
From: northern michigan
What do you mean by sealing engine? Glow plug looked just fine before semi and we've changed it for final.
Sorry for stupid questions, but as I said I'm complete newbie when it comes to nitro stuff. I raced only electric cars for years.
Uhm and if someone is thinking about this engine. Don't let yourself discourage by my posts. Engine ran amazingly well and was with nice powerband. It's really just down to my inexperience and extreme conditions yesterday
Sorry for stupid questions, but as I said I'm complete newbie when it comes to nitro stuff. I raced only electric cars for years.
Uhm and if someone is thinking about this engine. Don't let yourself discourage by my posts. Engine ran amazingly well and was with nice powerband. It's really just down to my inexperience and extreme conditions yesterday
LSN......3/4 TURN IN FROM FLUSH
HSN......1/2 TURN IN FROM FLUSH
IDLE GAP.... .07 GAP (EYE BALL MEASUREMENT)
07-10-2011 | 01:02 PM
#1778
To engine settings - is it with 7.0 venturi?
07-10-2011 | 01:07 PM
#1779
Joined: Dec 2009
Posts: 7,916
From: northern michigan
7.0 is Same restricter i have in. also make sure front bearing is not wet.
07-10-2011 | 01:35 PM
#1782
07-10-2011 | 02:35 PM
#1784
I'm running engine as I've received it. I don't have any extra shims in box.
07-10-2011 | 02:39 PM
#1785
Joined: Dec 2009
Posts: 7,916
From: northern michigan