I want to but a OS 8no. hot glow plug. where can i find it in india

Since you are in Ghaziabad, try rcskyhobbies - Mr. Manish

http://www.rcskyhobby.com/

RC SKY HOBBY
221, PATPARGANJ INDUSTRIAL ESTATES
NEW DELHI-110092
INDIA

CONTACT- 011-43068988
                   09958260702

Rcdhamaka try it love it

i asked vijay (rcskyhobby), he isnt sure if he has it or not.
i'll try rcdhamaka

BTW manish is my very good friend, so he is the first guy whom i ask.

its out of stock at rcdhamaka.

confused b/w 8 and A3...!

Car folks tend to use more nitro, so the medium plug #8 would be a better choice.  A3 *may* work better if you use no nitro, the extra heat is better suited for that scenario.

You may also try with Mr. Jamal Ahmad in Gurgaon - Mobile: 09811792323

conditions are cold here so i ws trying to get a hotter one

If you are using more than 10%nitro then go for OS no8 else use A3

I want a hotter glow plug. Which is hotter among them. Btw i use sixteen percent nitro

For 16% Nitro go with OS No.8

What ill effect will installing a hot glow plug have with 16% nitro fuel except for lower plug life,hotter engine,higher low point acceleration, etc

The idea is to run engines at "optimal" temperature, not "hot".

I will recomend you to buy one of both type and then use them the one you feel is better is your choice

Using A3, your engine will heat up alot and this is not good if you want your engine to last.. A3 makes it easy for you to start the car but it is not recommended...

Hey! The glow plug, by itself, does not make the engine run hotter or cooler. "Hot" plugs are used with low/zero nitro mixtures and 4 stroke engines, "cold" for high nitro mixes. The reference is to the PLUG temperature and NOT the engine!

Then Is it that my car will start fine even with a no8 plug...?
its really cold in north and the stock plug (R2+) from TTr has failed

OS #8 is one of the most versatile plugs in this business.  And "versatile" is meant to convey that it is used in a variety of situations.

The OS #8 is a fine general purpose plug. Seems to work pretty well on most engines.

What do mean by "failed"? Is the filament blown?

I am thinking to try A3 atleast once...

BTW rotor has a very good chart for plug selection.
i'll try posting it

Heres it.

here

here

Have you ever tried running your car for 15 mins flat out ?.. Do you have temp gun to see what is your constant temp?. With 15% nitro on a hot plug (OS A3) the temp was 280 to 320.. With the same setting i ran a Medium plug (OS A8), the temp was 240 to 260.. With same setting on a cold plug (Enya 6) the temp was between 180 to 220.. Please let me know if you had you own experience.. If you are answering these questions based on research, pls note that most the guys who share the exp come from a not so hot country like ours.. Engine temp is directly connected to the Glow plug... You can run with A3 on a 20% nitro and still run in less that 220 deg f by making it extremely rich.. You rather not drive this rich, since the max performance you can get out by this is only 50% or below..
My suggestions are based on gettin the best performance out of your car with less damage..

BTW glow is not used just to start the car but also to make sure the car performs consistently. Please read an article about what the glow plug on your rc car tells you about your engine after a couple of tanks on it.. I can paste the article. if you can't find it..

I have a small question. What voltage does a glow plug requires? Also can i use a AA size Nimh battery instead of a duracell in a non rechargable igniter?

Please see the topic 'Glow plug igniter from scratch' in related topics below.

1.2v.. An AA battery will help but it wont last more than couple of minutes.. I have seen people use it..

It will depend on the capacity of the NiMh cell. A glow plug typically draws around 4A. A 2700 mAH cell would last a flying session, unless your engine is a sluggish starter, or, of course, if your sessions are very long drawn out! Anyway certailnly more than "a couple of minutes".

so how many starts can i make out with a 2000mah nimh?

BTW a duracell dosent even lasts 4 starts...!

A 500 Mah single cell Pananica (the white ones which at one time were the only cells available in India)  used to last pretty long for me.
 

Capt. Manish (flyingboxcar) found a 500 mAh cell to last "pretty long". 2000mAh should last "pretty much longer"!!

My answer is not based on research but on long time practical experience, albeit with aeroplane engines. With due consideration with your readings, have you checked performance with the different plugs? The plug type will afffect timing which may or not be critical depending on the application. I am in full agreement that you would need the "right" plug for optimising this. At the same time the fuel mixture, ambient temperature, etc. would also be of significance if you wanted to tweak to "maximum". This, in no way negates what I have said, so far.

For whatever it's worth, my little "research" has not shown up ANY reference to a direct co-relation with type of plug and engine temperature. Please do send  me any pertinent info on this. It's never too late to learn something new and of interest!

anyone has any idea how much is the mah rating of a standard 1.5V AA duracell,,,?

Check this out:

http://www.powerstream.com/AA-tests.htm

Note how the effective AH rate changes dramatically at high current draw.

What I had found was that, the normal dry cells were of no use for starting the glow engines, where as  the humble 500 MAh Pananica Nicad always did the job. Never used a Duracell as these were not even availble then
Those were the days when a imported booster was a luxury and standard way to start was with a single cell. You had a short piece of single strand cooper wire attached to the plug. Hold the cell with one end of wire to any pole and touch the other pole to anywhere handy on the engine and go flipping the prop 

So i guess my kodak 2100mah AA Nimh wil do the job. Plus point--i have 7 of them...heheheh

I have, at least once, seen our member Prakkat starting engines with normal dry cells.  

i tried but i never worked for me at least

Eveready used to make big 2V dry cells which was very much suited to our use. A normal 1.5 dry cell will not last even few starts.
Another way is to use a 3V or even 6 V with a resistance in line to give the required volatge at the plug. This was one of the recommended practice by engine makers. If you have an old OS manual lying you can this recommendation.

What ohm resistance do we need for this purpose with a 3V supply...?

A 3V supply would work with a 1 ohm resistor in series. It should be rated at a minimum of 5 watts. Do note that this will get quite warm, if not hot, in operation. I would opt for a single NiCd/NiMh option.

i tried a Nimh 2100mah AA size, the glow plug lighted but the first two rings were not glowing, rest was gowing in bright orange(not dim orange). BTW glow plug is brand new.
What reason can explain this query?

Is it battery insufficiency?
pls help

Hard to imagine only a part of the plug glowing brightly. Try another plug of a different make/type and observe the result.

Ok its like whole plug is glowing except the last turn...its a usual sign for a low battery of igniter

Hey,
It is a very rare occasion that this might happen. It could be a faulty glow plug, if it has come with car from factory. Never the less your car might still start if your tuning is right.

Hi Sushil,

Please follow the link below. I have no exp on 4 stroke engines and so i wont know about the working of a glow plug on them. I have only tried OS & enya plugs.. I love the enya plug since it has got platinum coil. It is double the cost of O.S but lasts 3 times longer than O.S and tuning the engine has been very forgiving.

http://www.rc-truckncar-tuning.com/Glow-plug-reading.html

Do you buy enya from arvind or from somewhere else...?

I buy it from Aravind only. I dont know who else sells it..

how to check a blown out engine...? anyone..?

You wont be able to turn the flywheel. The connecting rod or Piston head will be stuck or broken..

Actually, the link shows you the effect of air/fuel mixture on the plug and head. A lean mixture will cause the plug and engine to run hotter than a rich mixture. It's the mixture that will influence the plug temperature and not vice versa.

I have been running an Enya #3 on my heli for a while now.

Where do u get them from sir?

Thanks god,
My engine is fine then.

What made you suspect a blown engine, in the first place?

i ran it toooooo much lean , and a full throttle punch after a while stopped the engine and it didnt started there after

This is not true in all cases. While this is common, you can have an engine that turns with hole(s) in the piston.  In many cases you will not feel the compression.

any sureshot sign to detect it...

anyone?? sure sign of engine fail

It stopped because, it ran too lean. This process is call flame out.. When is engine goes to max temp, the carb also heats up.. This ends in flame out..
Once your engine cools down you will be able to start it.. DONT run it lean.. Your engine wont last..

that was a mistake, i too 1 1/2 turns thinking it to be 3 turns....

BTW what do u use as after run oil.?

If the "normal" setting is 3 turns or thereabouts. The engine will simply not run at 1 1/2 turns.

but it did.....plane engines might not, but car engines do this, maybe the difference of nitro is responsible, but i have a self experience and am sure`

Did/would you try at 3 turns and find any significant difference? Am curious.

i corrected the needles but havnt started the car yet, have my exam tomorrow, and day after tomorrow in Aakash insti.

Whenever. Next year now!

And all the best for your exams!!

I'll keep you updated,and thanks for your wishes

There is Tonado after run oil available..

Anyone tried wd40?

What about wd 4
for this purpose

You can safely use SAE 30 Grade oil or your normal 2T lube oil (any brand available). All work, the idea is to displace moisture and any other byproducts of combustion from the metal inside the engine without damaging the rubber or silicon parts.
Even your singer (or other brand) machine oil will work but it does not stick on to metal parts for long and runs hence l have stopped using this one.
There are people who swear by WD 40 and then there are some who swear at it. Take your pick      

What is 2t oil? Could you please suggest any brand name for ease of identification?

castrol has 2t oil
its Used in scooter
you can buy it from near by mechanic

Just go to any fuel filling station and ask them for "two stroke engine oil". You can find a verity of brands as Kartik mentioned Castrol, Shell, Mobil, Servo, Motul etc..

thanks ANTA. BTW "speedracer" can u assure me that 2t oil is perfect for after run oil substitute..?
i am really scared and dont wanna mess around with my engine.

yup it will be really good plus ensure that there is no fuel left in the engine for that kill your engine by pinching the fuel pipe then remove it and without connecting the fuel pipe put in the igniter and start your engine this will eliminate even the last traces of the fuel then put in the 2t oil from carb opening and turn your engine one or two times that will be enough if you dont find time to run your car weekly during your board exams you can hand it over to me i'll run it (jokes apart)
just turn your engine one or two times even if you dont run it......do it weekly and add oil to it before turning and doit weekly.....

Guys anyone know whats the power consumption  of a typical glow plug like O.S 8. (in Ampere,also please mention whether its per second or hr)

You don't need to give constant power to a glow plug .
the power is given via glow igniter just to heat it up after that the small spring in it will conserve the heat from ignition itself.

4A i guess at instant...


BTW kartik, if u want to have some fun with my car, you are most welcome to my home anytime.....

Ok then we will meet sometime after the boards.

Great, get some car by then and some other friends of mine have same plans, we can arrange kinda teen racing club then...

This one Radio remote control glowplug heater.You can control glow plug by Ch  3 5 7 8 9 form radio. For Ch 3 if your throttle on your radio less than 25 % a glow plug it work and when you move up throttle more than 25% glow plug it off .And for Ch 5 aux gro when sw down glow plug it on move up glow plug off and Ch789 it same but Ch789 you select sw ch on radio it same receiver.And Radio remote control it had Lost plan alarm and check glow plug good false if glow plug heater open loop it false LED not bright if glowplug heater it close loop circuit it LED it bright.  Show you http://www.rcthai.net/webboard/viewtopic.php?f=34&t=373537

i just wanted to know... if you use hotter plugs, the motor as a tendency to run richer (considering the same tuning is used in both cases)...
also, you say that hotter plugs mean hotter engines... but richer motors run more fuel through so the the fuel itself has a cooler effect. then isnt the temp increase countered?

and what is the concept of after use oil?

cheers