Question about Triumph T 100 R Motorcycles

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I have recently bought a 1968 daytona but fitted with a single carb head.after running till its warm (about ten miles) it develops some noises , on the over run it sounds big end knock,and main sounding rumbles.when i lifted the head and barrels there was no apparent movement on the rods,the small ends where tight on the gudgeon pins,which i reamed out ,but the problem persist' i have checked the oil pump and reseated the balls .i use good quality oil.if you think this engine needs a major overhaul ,can you suggest some one in the london area or there abouts.regards.john hardwicke.

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  • Triumph Master
  • 43,120 Answers

Hi, Bilcomusic I would love to help you with your engine or chassis noise but I just loaned my brand new pair of listening ears to your local dealer's chief technician so he could take your bike for a test ride and give you his professional opinion and estimate about your noise and repair cost. If you are a little short on "DRACHMA" and a Dealership is not on your list of fun places to visit then perhaps the list below will help soothe your worried mind so you can make an informed decision.
1. Bearings---SCREECH
2. Belts---CHIRP
3. Brake Rotors---BUZZ
4. Chains---RATTLE
5. Clutches---CHATTER
6. Cylinders---PING
7. Fronk Forks---Plunk
8. Gears---WHINE
9. Head Gasket---HISS
10. Hydraulic Lifters---TAP
11. Pistons---SLAP
12. Rear Shocks---SQUEAK
13. Shifting Trans---CLUNK
14. Solid Lifters---TICK
15. Starters---CLICK
16. Connecting Rods Go---KNOCK-KNOCK---who's there, it's me "*****"
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Engine noise
How to diagnose problem by the noises your bike makes
http://www.classicbike.biz/Triumph/Repair/350-500/63-74-350-500cc-Repair.pdf
http://partsbooks.britishonly.com/partsbooks/20-10189C.pdf
http://mybikemanuals.com/triumph

Posted on Apr 20, 2017

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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robotek
  • 1512 Answers

SOURCE: engine knocks on idle

Hi northjames8
I would be checking that the rotor has been torqued up properly too. You  can get a manual from here. Is for later model bike, but the essence of these things should be the same. Thanks for using Fixya.Good luck with getting it sorted. A FixYa vote is a great reward for helping you out here. Cheers
regards robotek

Posted on Jan 25, 2009

  • 36 Answers

SOURCE: i'm getting a "creamy" oil coming out of the overflow

when oil becomes creamy or foamy it is a sighn that you are getting moisture in it. you must have water leaking into your oil. you should fix the problem soon because your oil will not work properly with an excess if moisture in it.

Posted on Mar 16, 2009

  • 3567 Answers

SOURCE: Engine knock at high revs

Sounds like Pre-ignition, aka Detonation, aka Engine knock. Carbon deposits build up on the head, valves and piston. They can get hot enough to ignite the fuel before the spark plug has a chance to. This is the Pre-ignition noted above. This is VERY hard on the engine. Take the head off the cylinder then beat the valve area with with a hammer followed by aggressively beating the top of the piston. Pre-ignition does the same thing. Not good for the top end, and not good for the crankshaft. Use only good quality premium gas. Change to a spark plug one heat range colder than the stock plug. Seal up any air leaks on the intake system. Running a lean fuel mix means running hot.

A “very helpful” rating for this answer? Thanks!

Posted on Jun 11, 2009

indy650
  • 30 Answers

SOURCE: knocking noise on kx 85

The rod should move side to side this is called little end side shake. the correct amount is .8mm to 1.3mm make sure the rod does not have any movement up and down on the bearing.If this is all good your knock may be from a worn piston. If its more of a grinding sound it could be the crank bearings.
-john

Posted on Jun 18, 2009

bobthebulldo
  • 67 Answers

SOURCE: How do i know if its a big end knock or normal ?

there nornally nis a bit of rattle,can you hear it with out the screwdriver, if not i wouldnt worry to much, i would if i was you drop the oil and put fresh oil in that will make some differrnce cos if the oil has lost its density it becomes thin am=nd wont protect the engine properly

Posted on Oct 17, 2009

Testimonial: "Thanks for advice it is not noticeable other than with listening device have already changed oil the first thing i did cheers "

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