• The Roadster Factory Recovery Fund - Friends, as you may have heard, The Roadster Factory, a respected British Car Parts business in PA, suffered a total loss in a fire on Christmas Day. Read about it, discuss or ask questions >> HERE. The Triumph Register of America is sponsoring a fund raiser to help TRF get back on their feet. If you can help, vist >> their GoFundMe page.
  • Hey there Guest!
    If you enjoy BCF and find our forum a useful resource, if you appreciate not having ads pop up all over the place and you want to ensure we can stay online - Please consider supporting with an "optional" low-cost annual subscription.
    **Upgrade Now**
    (PS: Subscribers don't see this UGLY banner)
Tips
Tips

Rare but persistent engine missing phenomenon

Share this page

S

slacsteve

Guest
Guest
Offline
For four years my SU carbed 1098 66 Sprite has on rare occassions (every few months) while traveling at highway speed started missing badly and losing power. After 30 seconds of trying to keep it going I come to a stop - won't idle - and the restart it. Persistently it starts up, revs up, zooms off and doesn't show this behavior again for several months. Always at highway speed. This has been going on for 4 years. Any ideas?
 
Biff

Biff

Jedi Trainee
Offline
Gunk in the carb, vapor lock, or vaccum in the fuel tank caused by a clogged breather hole in the fuel cap, or if an electric fuel pump stuck points?
 
B

Bugeye58

Yoda
Offline
Maybe a coil that is heating up and breaking down. I had this happen to me on a '65. Try letting it idle while you use a heat gun on the coil to see if it happens then.
Jeff
 
Morris

Morris

Yoda
Offline
My sister had an old Datsun that had this problem. It was caused by trash in the gas tank. At highway speed, the fuel pump was moving enough product to suck a piece of garbage into the pick up. Turn the motor off, the piece of trash falls away from the pickup and everything works fine again.

Her solution: sell the car to some poor, unsuspecting, sucker.

morris
 
M

Matthew E. Herd

Jedi Warrior
Offline
Dropping the gas tank is quite easy if you can get it up on a lift (or at least well off the ground). It shouldn't be hard to dump out the gas from the tank.
 
jlaird

jlaird

Great Pumpkin
Country flag
Offline
My gas tank even has a drain in the bottom, then they real easy to remove.
 
S

spritenut

Luke Skywalker
Offline
Gunk in the gas tank, an air leak at the nipples of the fuel pump, rusted up gas cap vent (always at highway speeds, try running with the cap off or slit the gasket on the cap.
sludge in the float bowls, or incorrectly set float using all the gas at speed.
 
Similar threads
Thread starter Title Forum Replies Date
PAUL161 T-Series Rare 1954/55 MGTF Accessory MG 23
HealeyRick TR2/3/3A Rare TR Spotted Triumph 5
tr6nitjulius Wedge Rare TR8 Triumph 0
Basil Ultra rare 47 Chevy Spotted 7
K For Sale Rare TR3 Folding Lug Wrench Triumph Classifieds 1
S For Sale RARE FIND BN2-BT7 and? Trans Parts for Sale Austin Healey Classifieds 2
K For Sale Rare Book The Jaguar XK in Australia Jaguar Classifieds 0
HealeyRick Rare Barn Find Valve Cover Racer Austin Healey 9
Sherlock A rare Brit, or two... Spotted 0
steveg Rare colored tri-carb BT7 on eBay Austin Healey 13
V A Rare sight 3 Models on the Move TVR 0
aeronca65t rare Lister-Jag wrecked Jaguar 1
Mickey Richaud General TR Now HERE'S a Rare One! Triumph 5
aeronca65t Misc. Rare Brit Cars Other British Cars 3
M Looking for this rare front for a Bugeye Sprite Spridgets 9
BoyRacer BN2 bellhousing - how rare - price? Austin Healey 2
L A rare Healey Austin Healey 3
Sherlock A rare Brit saloon car Spotted 0
D British Union Car Festival *lots of pics of rare* Spotted 31
Sherlock Rare metal at our annual Euro Show... Spotted 4
C Rare Triumph-Powered Racer: Tornado ThunderBolt! Triumph 8
Merlin63Tr4 Are Alfin rear drums that rare!!! Triumph 14
Sherlock Rare Brit uncovered Other British Cars 4
M Spitfire RARE BL Spitfire parts catalog see inside Triumph 0
C Rare Bird - Hawke DL11 [circa 1973] Racing 3
UltimateQuestion "Extremely rare" on ebay Triumph 23
T Wedge Rare moment of discipline - TR7 Spider in NorCal Triumph 13
Steve Okay, not LBCs but rare these days.... Spotted 11
V Ultra-rare Porsche 914-6 GT factory racer! Other Cars 2
WedgeWorks TR6 Rare TR6 Triumph 12
nissanite Speedo & Tach for sale ... NIB NOS Rare .... Triumph 11
JPSmit who knew they were so rare? Other Cars 8
Sarastro Super-Rare Triumph Models! Triumph 19
beaulieu Wedge TR7 hardtop with sunroof , How rare ? Triumph 6
Moseso TR4/4A "Very Rare TR4" Mpls. Craigslist Triumph 8
Hap Waldrop Rare custom parts Spridgets 2
78Z Now here is a rare one! Commer Ute Other British Cars 12
Editor_Reid Rare 100 Aftermarket Accessory Austin Healey 7
healeynut Talk about your rare cars Other British Cars 0
Mickey Richaud Now This IS Rare! Other Cars 6
V Stag "Stag on steroids": rare Tickford Stag! Triumph 8
V Rare TR-5 on eBay$$$ Triumph 8
JPSmit Rare and Sad - Daimler SP250 Other British Cars 9
gsalt57tr3 TR2/3/3A The most rare of the TR3 variants Triumph 4
BugEyeBear RARE '52 Healey Abbott Drophd Coupe in Classifieds Austin Healey 5
S Talk about rare....... Other Cars 25
GreenHornet Rare Jag Jaguar 9
TR4nut Wedge Gameday - Rare Early TR Wedge Prototype? Triumph 10
MGBGT_noob MGB-GT Rare GT for sale, near Houston MG 11
healeyboz A rare find! Spridgets 11

Similar threads

Top