Jammin JPX 21 Plus ( new)
#302
Hi guys, my JPX flamed out three times last weekend in the exact same place on the track - on the landing of a big jump. This just started recently. What could cause flameouts on hard landings?
#304
#306
I am not on power and I don't think it is rocks. I don't see any scraping of any kind where the flywheel meets the chassis. Can less then ideal compression cause this? The engine has been a champ, but it has some time on it. The compression feels border line when it is cold. Some folks say the compression is still okay, but others say the compression is low. I think the engine may just be tired.
What do you guys think, can it be a compression thing?
Thanks!!!!!
What do you guys think, can it be a compression thing?
Thanks!!!!!
#307
Tech Elite
iTrader: (7)
i bet the flywheel is hitting the dirt, my dad and i had the same problem with our JPX over one big jump on the track so we switched engines and still had the problem and realized it was just hitting the flywheel, if we landed with some throttle it would stay running. so its probably that.
#308
I am not on power and I don't think it is rocks. I don't see any scraping of any kind where the flywheel meets the chassis. Can less then ideal compression cause this? The engine has been a champ, but it has some time on it. The compression feels border line when it is cold. Some folks say the compression is still okay, but others say the compression is low. I think the engine may just be tired.
What do you guys think, can it be a compression thing?
Thanks!!!!!
What do you guys think, can it be a compression thing?
Thanks!!!!!
#309
Tech Apprentice
iTrader: (3)
i bet the flywheel is hitting the dirt, my dad and i had the same problem with our JPX over one big jump on the track so we switched engines and still had the problem and realized it was just hitting the flywheel, if we landed with some throttle it would stay running. so its probably that.
Brian
#310
Good input guys. The first two times it happened were during the 5 min qualifiers. I raised the idle a click before the 20 min main an attempt to eliminate a low idle setting. Well 10 minutes into the main and all was good. I thought I was golden. Then with 4 minutes to go it flamed out again.
I am going to try to keep the back of the car from contacting the ground first by bringing down my front end right before landing. If the flameout is caused by clay/rocks hitting the flywheel bringing down the front end should help minimize the risk of it happening again. I am starting to think that the hard landings may have been with the chassis flat or even landing the back of the car first. Lets see what happens this weekend. Thanks guys!
I am going to try to keep the back of the car from contacting the ground first by bringing down my front end right before landing. If the flameout is caused by clay/rocks hitting the flywheel bringing down the front end should help minimize the risk of it happening again. I am starting to think that the hard landings may have been with the chassis flat or even landing the back of the car first. Lets see what happens this weekend. Thanks guys!
#311
I am not on power and I don't think it is rocks. I don't see any scraping of any kind where the flywheel meets the chassis. Can less then ideal compression cause this? The engine has been a champ, but it has some time on it. The compression feels border line when it is cold. Some folks say the compression is still okay, but others say the compression is low. I think the engine may just be tired.
What do you guys think, can it be a compression thing?
Thanks!!!!!
What do you guys think, can it be a compression thing?
Thanks!!!!!