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Post by McF on Oct 13, 2009 18:55:47 GMT 1
I could clearly notice that as the engine was getting warmer a tiny "tic tic tic tic" sound started to appear. Took a 10 minute ride and the ticking noise got louder. It is more noticeable when the engine is hot. When cold, this noise is not present. I thought this must be the normal valve noise but it does not seem to come entirely from the upper part of the engine. Does the sound vary with engine speed? I'm guessing it does, that is when the revs go up, the ticking sound gets faster. There are a lot of moving parts in the engine, three of them are chains (2 cam chains with automatic tensioners), one is the oil pump chain which does not have a tensioner. Of these, you may be able to hear the oil pump chain (one of mine was quite loud, but more of a rattle than a tick) If you want to try and locate the sound a little more accurately, either get a stethoscope (really!) or a mechanics stethoscope (instead of a rubber end, it has a metal probe), or make your own: Get a long screwdriver, put your fist around it so that your thumb goes around the end, rather than around the handle. Put the knuckle of your thumb against your skull immediately behind your ear then place the end of the swcrewdriver against various parts of your engine and listen carefully - seriously, this is a good way to hear what is going on inside your engine. Be very careful when the engine is hot, it's quite easy to touch an exhaust or something as you will not be facing the bike. On the other hand, aNTy's engine isn't the quietest in the market, so if she is performing OK and the tick sound isn't too loud, it may be you just need to live with it. It may or not be helpful, but if you can video the bike running (from cold and when warmed up, then post to eg You Tube, we might be able to make a comparison. Here's one of mine ticking over - sound quality isn't too great, but it may give you an idea |
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Post by cyphron on Oct 14, 2009 0:26:16 GMT 1
Like you said McF, the 'tic tic tic' sound varies with engine speed.
Its more perceptible when the engine is hot, and it isn't
too loud. I just noticed that it was louder when hot, so decided to ask you about it.
But folowing your suggestion, here are two videos :
Cold Start :
After a 30 minute ride :
I guess the noise I talked about isn't very noticeable on the videos. But being so it must be a positive thing :-)
Maybe I should just worry if the noise I talked about was noticeable on these videos ...
Your comments have been very usefull. Thanks.
Great Forum to learn about these bikes.
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Post by McF on Oct 14, 2009 7:06:49 GMT 1
Hi Cyphron
quick work with the videos
I'm afraid I didn't hear anything unusual - but let's treat that as a good sign.
I'll try again this evening with the volume up
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Post by Buzzin (^_^) on Oct 14, 2009 16:51:07 GMT 1
I haven't even said hi properly, and already I bring good and bad news.... The bad news: you are not our first Portuguese member ... that would be Youija The good news: you are not our first Portuguese member, someone near(ish) to where you life owns an NTV as well  I like the 'sporty' look of the bike, but I won't be transforming mine any time soon (as well, I use it to commute) On the videos I couldn't hear anything wrong either....the plopping sounds are normal, and I couldn't hear any ticking...perhaps the camera is filtering out that sound? |
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Post by ilegalalien on Oct 14, 2009 16:56:29 GMT 1
sounded ok to me but you need better audio quality and put the mic near the rattle for us to make a educated guess
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Post by cyphron on Oct 14, 2009 20:24:23 GMT 1
I updated the hot engine video on the post above.
Maybe this one is better as far as the engine sound is concerned.
Take a look please.
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Post by cyphron on Oct 14, 2009 20:35:55 GMT 1
I haven't even said hi properly, and already I bring good and bad news.... The bad news: you are not our first Portuguese member ... that would be Youija The good news: you are not our first Portuguese member, someone near(ish) to where you life owns an NTV as well I like the 'sporty' look of the bike, but I won't be transforming mine any time soon (as well, I use it to commute) On the videos I couldn't hear anything wrong either....the plopping sounds are normal, and I couldn't hear any ticking...perhaps the camera is filtering out that sound? There is another Portuguese member with an NTV living near me ? I guess there aren't many NTV forums, so it's natural that some portuguese members come and register :-) Two more questions : 1 - When opening the radiator cap is it supposed to see any coolant on the filler neck ? I opened mine when engine was cold, but saw none, despite the level at the coolant reservoir is near the upper mark. Should I add some coolant until its visible on the filler neck ? 2 - Is there another brand/model of motorcycle having similar specs as the NTV (V Engine, Shaft Drive and Single Side Arm ) ? Thanks |
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Post by ilegalalien on Oct 14, 2009 20:52:32 GMT 1
1.. fill it untill you can't get anymore coolant in there
2.. yes the Revere600/650
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Post by McF on Oct 14, 2009 21:58:20 GMT 1
1 - When opening the radiator cap is it supposed to see any coolant on the filler neck ? I opened mine when engine was cold, but saw none, despite the level at the coolant reservoir is near the upper mark. Should I add some coolant until its visible on the filler neck ? As illegal says - fill it right up presume you have already topped it up - did you notice how much it took? The total capacity of the system is 2.2 litres, but normally only takes 1.6 litres if you just drain the system (because 0.6 litres doesn't drain unless you do a complete strip) Presume you used the recommended 50/50 mix of distilled water and ethylene glycol corrosion inhibited antifreeze? The expansion tank (you described it as the coolant reservoir) is only used to balance the system - you cannot top it up from there. When the main system heats up, it increases pressure. Because there is no air gap the increased pressure opens the pressure cap (on the thermostat housing) and some excess coolant escapes into the expansion tank. When the system cools down, it causes a small vaccuum and sucks coolant back from the expansion tank via a small "flap" in the cap. 2 - Is there another brand/model of motorcycle having similar specs as the NTV (V Engine, Shaft Drive and Single Side Arm ) ? Thanks As illegal says, the Revere 600 & 650 are almost identical Main differences are: engine size and relevant components (Pistons, Rings, Cylinders) Instrument Console (Revere = Odd sizes) Top Yoke and Handlebars (Revere = "clip ons") Most reveres have an external chromed oil line for the cylinder heads, which the 650 does not. Other similar bikes (but not identical) with components that may be suitable include Bros Hawk Deauville Transalp |
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Post by cyphron on Oct 14, 2009 23:08:51 GMT 1
No McF, I never topped the system since I bought the bike. I just topped the coolant reservoir to the upper mark.
When I removed the tank to change the air filter and check the valves e removed the radiator cap also, and noticed no coolant at the filler neck. Thought it was normal and never topped it up.
Yesterday I was reading the haynes manual and read that the coolant should be visible on the filler neck, so I decided to ask you about it.
Since it seems the system needs to be topped up, I think I will just drain the system (removing the water pump drain bolt) and flush it with clean water inserting a garden hose in the radiator filler neck allowing the water to run through the system for a while.
Then I'll install the drain bolt again and refill the system with brand new coolant (using the recommended 50/50 mix of distilled water and ethylene glycol corrosion inhibited antifreeze, or simillar) until it reaches the radiator filler neck.
I will then also check the coolant reservoir level and top it up again if needed.
I asked about other bike models because I have a friend who is looking for a naked bike from 1995 ahead with shaft drive (non chopper style) and appart from the NTV, the only models that fall into this category are the Yamaha XJ900 and the BMWs ...
The Bros and Hawk models were not sold in our country.
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Post by Buzzin (^_^) on Oct 15, 2009 10:46:58 GMT 1
2 - Is there another brand/model of motorcycle having similar specs as the NTV (V Engine, Shaft Drive and Single Side Arm ) ? Thanks As illegal says, the Revere 600 & 650 are almost identical Main differences are: engine size and relevant components (Pistons, Rings, Cylinders) Instrument Console (Revere = Odd sizes) Top Yoke and Handlebars (Revere = "clip ons") Most reveres have an external chromed oil line for the cylinder heads, which the 650 does not. Other similar bikes (but not identical) with components that may be suitable include Bros Hawk Deauville Transalp The Revere 650 is essentially the same bike as the NTV 650 (full name: NTV 650 Revere), with some slight modifications (as mentioned). I'm not sure, but I think the Revere 650 only had the oilline on the outside in '88, after that it was put inside the engine (like on mine) Not sure what was on offer in Portugal, but I suspect they had the Revere 650 there too, so the enige size would always be the same. Other bikes are rare, but I have heard good reviews of diversions. I believe they are yamaha's? Other then that....the BMWs are the only ones I can think of. They do single sided swingarms and I know the do shaftdrives.....but not sure it they combine them. |
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Post by oddjob1 on Oct 15, 2009 10:57:31 GMT 1
few other v twin shaft drives..honda (pacific coast) pc800 for american market,suzuki vx800  |
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Post by rj2para (Bisto) on Oct 15, 2009 19:41:49 GMT 1
When I got my last mot there was a chap in with the PC800 fitted with a side-car.
In his words when he got to old to pick it up he fitted a side car. ;D Kind of liked the idea to extend biking.
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Post by ilegalalien on Oct 15, 2009 22:23:42 GMT 1
OMG.. flash gordon does red... looks like a dullville dipped in red wax, am glad the front wheel managed to escape the red invasion....
plugs change 6hrs...
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Post by cyphron on Oct 16, 2009 1:32:47 GMT 1
Well ... Since you 've been folowing me on the previous posts, I decided to share with you some pictures of the work I did on the bike today ... Sorry, no pictures of the assistant :-) Took off the tank ...  The new air filter I installed some days ago ...  Underneath the air filter ...  Now the BIG surprise ... When I took off the water pump drain bolt, it only spilled about 200 / 300 cc of coolant !!! I dont know if I can call that 'coolant' because it was a very dark moisture ... The system was almost completely empty... Look at the moisture after two flushing attempts :  At the third flushing attempt the water started to become clean so it was sufficient to clean the system. Refilled it 3 times, started the engine for a couple of minutes reving it a little. After this I filled the system with brand new green coolant I bought yesterday (suitable until -11ºC).  The Carburetor :  Rear engine head after removing the rocker cover and cleaning the borders:  The rocker cover rubber, after cleaning :  The silicone sealant I've put along the rubber :  ... and that's it. An hour after these procedures I took a 15 minute ride and noticed 3 things : 1 - The temperature gauge began to vary less (before this, everytime I pulled harder the temperature gauge reacted). 2 - The engine sounds more silent. Having little coolant was aparently making all the metalic sounds becoming more noticeable. 3 - In the end, there was no oil spilt along the rocker cover gasket. So ... Mission acomplished ... I'm feeling better now :-) And I bet she is too !! You had your share of responsability on this !! eh eh eh ! Thank you all for your help. |
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