• 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

timing chain sprocket

Share this page

6

69tr

Jedi Trainee
Offline
I have the cover off and ready to remove the chain and tensioner.

The chain has about 1/4 inch of deflection. Is that about normal?

The sprockets look to be worn a little. The teeth are not sharp but there is little space on the ends. What should they look like.

I apologize for all the basic questions but it will be easier to make the necessary repairs now.

Thanks, Pete
 
MGTF1250Dave

MGTF1250Dave

Jedi Knight
Silver
Country flag
Offline
Aloha Pete,

I don't know specifically about the TR6 engine, but on the 4 cylinder TR engine, maximum allowable chain deflection between the sprockets is 10mm or about 25/64 inches. Here is an illustration of good sprocket teeth and worn ones.
 

Attachments

  • 23877.jpg
    23877.jpg
    9.3 KB · Views: 180
TomMull

TomMull

Darth Vader
Silver
Country flag
Offline
Here is a test from the hot rod guys: Timing chain test I don't think it is engine specific although this was worked out for V8s.
Even though your deflection (1/4) seems to be withing specs, my inclination would be to replace at least the chain and tensioner. Tom
 
OP
6

69tr

Jedi Trainee
Offline
On further inspection the cam sprocket shows signs of wear. The teeth are sharp.

I had planned on changing the chain and tensioner. I will also change the cam sprocket.
 
Hap Waldrop

Hap Waldrop

Yoda
Offline
I have no idea of your engine build, but I building a TR6 engine right now and got a adjustable vernier style cam gear from BPNW, it retails for about 200 bucks, but you can dial the camshaft in exactly where you need as for timing for a performace camshaft, which we have for this engine. Nice piece I plan on documenting it's use on the forum here as we get into the assembly stage.
 
OP
6

69tr

Jedi Trainee
Offline
This did not start as a 'build'. I pulled the head to change the gasket and started checking some other stuff while I had it off.(see 'might as well' post) I will probably go back with a stock cam sprocket. The rest of the engine is stock and the car is a daily driver.(In the summer).

Thanks for the info though. Might be something for later when I win the lottery.
 
Similar threads
Thread starter Title Forum Replies Date
doughairfield Timing chain sprocket to camshaft Triumph 9
bash TR6 TR6 timing chain sprocket alignment Triumph 3
K TR2/3/3A How to tell if the timing chain has slipped...... Triumph 12
Got_All_4 TR5/TR250 Timing chain tensioner completely shot Triumph 11
mt10flyer TR2/3/3A Timing Chain Tensioner - again Triumph 13
K TR2/3/3A Timing chain rattle on start up? Triumph 2
LAW75 Timing Chain Cover Gasket Austin Healey 12
J Crankshaft dog nut and timing chain cover removal advice Austin Healey 30
D TR2/3/3A Timing chain tensioner. Triumph 3
doc50 Metro 1500 Has Slack Timing Chain? Other British Cars 20
Got_All_4 TR6 Timing chain Triumph 10
Got_All_4 TR6 Double row timing chain in a 69? Triumph 2
Michael Oritt Replacing timing chain tensioner and more Austin Healey 24
DornTRoriginal TR2/3/3A Checking if Timing Chain is Installed Correctly Triumph 6
D BT7 Timing chain install Austin Healey 2
M Timing Chain on 948 Rebuild Spridgets 1
R General Tech Timing chain replacement Triumph 5
RJS TR4/4A Timing Chain Oil Seal Triumph 6
B TR2/3/3A Timing chain cover goop location Triumph 4
B Timing chain tensioner help Austin Healey 15
G Timing Chain - Slackend Austin Healey 5
T TR2/3/3A Is there any reason there is a stud bolt at top of timing chain cover? Triumph 7
GTP1960 TR2/3/3A Cleaning/degreasing timing chain Triumph 11
S TR2/3/3A timing chain cover and woodruff key Triumph 4
G TR4/4A timing chain and sprockets Triumph 9
DanLewis Looking for a good timing chain cover Spridgets 1
B Timing Chain Tension Ring for BN2 Austin Healey 5
J TR2/3/3A Timing chain pin Triumph 1
L 100 timing chain worn? Austin Healey 7
mt10flyer TR2/3/3A Timing Chain Tensioner - 1959 TR3 Triumph 32
DornTRoriginal TR2/3/3A Timing Chain Installation Procedures [TR3 engine TS 36161E] Triumph 5
T Timing Chain Wear? Austin Healey 5
J TR2/3/3A TR3A Timing Chain Seal and Gasket Replacement Triumph 7
RJS Timing chain oil seal Triumph 12
K TR2/3/3A Timing Chain Cover Crack TR3...#%€£¥^% Triumph 10
K TR2/3/3A TR3 Timing chain cover scroll seal...... Triumph 5
Geo Hahn Timing Chain Noise Triumph 25
kyreb1862 Is It Best to Go With A double Row Timing Chain? MG 1
K TR2/3/3A Tr3:installing a speedi sleeve timing chain cover? Triumph 4
K TR2/3/3A TR3 Oil Pressure Timing Chain Tensioner? Triumph 0
TulsaFred Timing chain Spridgets 22
Darrell_Walker Timing chain tensioner wear Triumph 8
6 timing chain cover Triumph 4
bugedd Anyone have a timing chain cover? Spridgets 10
rikiwho123 timing chain to gear drive? Triumph 4
eschneider TR2/3/3A TR2/3/4 timing chain tensioner Triumph 4
M TR4/4A tr4A timing chain procedure? Triumph 9
c5racer 1500 Timing Chain Upgrade to TR6 Spridgets 1
W TR6 TR6 Timing chain oil seal question Triumph 3
doughairfield Install oil seal timing chain cover Triumph 9

Similar threads

Top