Question about Cars & Trucks
Tappets making noise. loss of power when starting or from going from a start position e.g. traffic lights, strains up hills, no power, very old engine, lots of kms, just wasted money at mechanics because when we went there to fix tapping noise they replaced automatic balance and then told us tappets were the problem i.e. issue of noise. We are insured but van under finance. We also cannot afford expensive repairs being on centrelink.
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Posted on Jan 02, 2017
SOURCE: sudden loss of power
I have the same problem, I talked to the Triumph dealer and he said it was the gas tank purge valve. It's between the carbs connected to the frame, it's hooked up to the gas tank vent pipe on the bottom of the tank. He said there was two issues and that this one was 9.5 out of 10 the solution. He said to just remove the purge vale and put a straight piece of plastic in place of it. The other solution which is more exspensive he said was the crank trigger sensor.
Posted on Jan 29, 2009
to tell you the truth your oil smells like gas because it has been sitting too long with out moving within 3 day of unstarted motors all do that but your tapping noise did you check if your have enough oil maybe one of your lifters are going bad you should check that out this is just some info hopfuly this helps a little
Posted on May 05, 2009
So why not just get a set of feeler gages and reset the valve clearances? Getting a new cam is not going to change the need to set the valve clearances. Unless a lack of oil has caused the cam and rockers to self distruct, these parts normally last the life of the bike.
Can I get a “very helpful” rating on this answer?
Posted on Aug 09, 2009
The oil is "gooey". Hmm. Cold 20W50 oil is gooey. There is nothing else in the engine to change the consistancy of the oil. Now, your oil tank is accessible without any tools. Possiblility someone could have put something in your oil. A good sniff of the oil should tell the story on that. If it smells like sugar or syrup, that's a good clue.
Now, If the bike wre a big twin, I'd guess you lost a roller on a tappet. Big Twins are notorious for this but the header says your bike is Sporty. I've never seen a Sporty lose a roller tappet. The Sportster has a much better valve train geometry than a Big Twin.
Have you checked for a blown head gasket? Evo Sportsters are known to be more vulnerable to that than the big twins. The easy way to find that is wait until it gets dark, start the engine, and rev it up a few times. Watch for a sharp flame to pop out betweent he head and the cylinder. It's easily seen in the dark.
Other than that, anything I could tell you would be a guess at best. Take a long screwdriver and put on bone in your head just in front of your ear. With the engine running, touch the engine in various places and try to determine where the noise is coming from. Sometimes this isn't easy as the noise will have a tendency to "travel through the engine". Otherwise the only thing you can do is a compression test or a leakdown test.
Posted on Jul 01, 2010
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