• 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

TR2/3/3A Another TR3 Piston Ring Gap Question

Share this page

M

mastaphixa

Jedi Trainee
Bronze
Country flag
Offline
I'm using 86mm pistons/sleeves on my rebuild and am measuring ring gaps. I am using the TR4 spec .010 - .015" for the compression rings. What is the appropriate gap for the oil scraper rings? Mine are measuring out to .025". The manual reads something like "Ring gap at all positions .010-.015".
Thanks,
Steve Baker
 
TomMull

TomMull

Darth Vader
Silver
Country flag
Offline
I've never worried about the oil ring gap but there is some consensus at .015 for cast iron rings. Lately, most kits Ive seen come with the 3 piece oil rings. Gap for those (in general not Triumph specific) runs from .015 to.050, quite a bit of leeway. The center piece has no gap and compresses slightly in the bore.
Tom
 
Similar threads
Thread starter Title Forum Replies Date
Sarastro Another SoCal TR3 Spotted 1
T TR2/3/3A having no shame I ask another question about a TR3 engine that is giving me fits Triumph 10
Got_All_4 TR2/3/3A Another TR3 barn find Triumph 4
T TR2/3/3A Another TR3 battery box replaced Triumph 5
M TR2/3/3A Another rough running TR3 Triumph 1
GBRandy TR2/3/3A Another TR3 prospect - TR3B Triumph 27
T TR2/3/3A yet another TR3 steering box question/hone? Triumph 9
Tinkerman TR2/3/3A Another Steering Box Question TR3 Triumph 4
tinman58 TR2/3/3A Another TR3 gas tank ? Triumph 3
TR4nut TR2/3/3A Another TR3 trans trivia question.. Triumph 2
K TR2/3/3A Another TR3 Front Suspension Rebuild Question Triumph 5
YankeeTR TR2/3/3A Another TR3 hunt is on....UPDATE!!! Triumph 41
RedTR3 TR2/3/3A Another TR3 Brake Question Triumph 1
S TR2/3/3A My wife is going to freak! Another TR3 coming home Triumph 22
M TR2/3/3A Yet another TR3 question... Triumph 3
gsalt57tr3 TR2/3/3A another obscure TR3 part needed Triumph 7
jsneddon TR2/3/3A Another TR3 comes back to life! Triumph 6
Y MGB Time for another puzzle piece.... MG 5
P Another beautiful Sunday Spotted 0
L T-Series Another brake prob. ? MG 12
T I added another TVR to the fleet. TVR 10
AngliaGT ANOTHER TR6,& an MGB Spotted 0
Rut MGB Another sad day! MG 10
T General TR Another trans popping out of 2nd Triumph 14
K TR2/3/3A Another electrical problem: Park light & 5ignal light on Drivers side are brighter than....... Triumph 3
JPSmit you won't likely see another Spridgets 4
D TR2/3/3A Another mystery part(s) Triumph 2
Hamish Racing Another 3 sisters spring with commentary Racing 0
K TR2/3/3A Another brake bleed question....... Triumph 17
7 Wedge Got another one! Triumph 3
Sarastro TR4/4A Another 50K TR4A Triumph 5
D TR2/3/3A Another mystery part Triumph 8
HealeyRick GT6 Another Satisfied Customer Triumph 3
nichola TR6 Another TR6 back on the road Triumph 1
Sherlock Another cruise night, more interesting British iron Spotted 2
D TR2/3/3A Another Carb question. Triumph 22
Healey Nut Another Use for J-B Weld Austin Healey 5
D TR2/3/3A Have exchanged one leak for another. Triumph 10
dbenichou289 TR2/3/3A Another exhausting thread Triumph 10
D TR2/3/3A Another mystery part..or two Triumph 14
John Turney Another Article to Criticize Austin Healey 5
tr6nitjulius TR6 TR6 made another list! Triumph 5
Lin Another Trafficator/Control Head Question Austin Healey 10
Rob Glasgow Can I find Another one as Good? Austin Healey 4
V LED light bulbs : One thing leads to another Spridgets 7
V LED light bulbs : One thing leads to another Austin Healey 2
Editor_Reid Bought Another One Austin Healey 14
tr6nitjulius General TR Triumphest 2019 another one bites the dust! Triumph 2
pkmh Yet Another Oil Question! Austin Healey 8
P TR2/3/3A Another Differential Question Triumph 22

Similar threads

Top