chrisjw

I've used those filters on my Force .21 engines for as long as I've had the car (20 years), with no problems at all................

Have you checked that all of your batteries are fully charged for the receiver & controller?

Loosen off the nut on the HSN needle (red arrow in pic in link below) & remove it......Make a mark with either a felt tip pen or scratch it on with a screwdriver, above the hole in the needle....Tighten it back up, ensuring that the fuel line nozzle lines up with the mark you made. I had this problem once before & found that the needle hole wasn't properly lined up, so the fuel was reaching the carb from the tank, but wasn't actually getting into the carb............. http://http://i933.photobucket.com/albums/ad177/chris_512/HSN Carb Needle_zps3joajrjc.jpg

If anything, I'd say it's running too lean.............It's everyone to their own with regards nitro v brushless, but I personally, could never be tempted away from nitro.......I love the noise, the smell & above all, the challenge of getting it running right....I'm lucky though, as I've had the same car for 20 years now with the original engine still on it (although I have a spare one too), so I know every nut & bolt on the car & also enjoy stripping it down & rebuilding it...........keep at it.........it's worth it.

To me, it does sound like the bearing. It may have disintegrated when you tightened up the new flywheel, but that's only my take on it. Hopefully, someone else can be more helpful.

They have a Twister manual on here, but don't know whether it's the right one............... http://www.rc-bargains.co.uk/page.html?zenid=4c97ca8c0af7877d744b3381fed0fc94&id=13

I've just invested in a tube of this jollop.....Haven't used it yet though. http://www.ebay.co.uk/itm/171795057432?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

If it's spitting fuel from under the head, you could try fitting an extra shim......Also, make sure the head is screwed tight down.

I think I'll try some vinyl wrap in that case.

It is an on road, but, to be honest, the underside isn't so important I suppose, as I can rub down & spray that from time to time when needed.........It's more the topside, so I think I'll try some of the vinyl wrap.................I just like to keep the car looking as clean & tidy as possible.

The chassis on my car is 18 years old now & showing signs of wear.........I wanted to tidy it up a bit, particularly the topside of it............Has anyone used either of these products & are they any good?....or is there a better solution.......... http://www.ebay.co.uk/itm/231369014370?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT http://www.ebay.co.uk/itm/200974170606?_trksid=p2060353.m1438.l2649&var=500192637325&ssPageName=STRK%3AMEBIDX%3AIT

Glad it's sorted..............There had to be a simple solution to the problem, given the fact that the engine is not uncommon...........

Thanks for those couple of little tips......Will try them................

My little set up......................It's getting a bit dated now though...............

Reading through the OP's post, he doesn't say whether he still has the pullstart that came with the engine when he got it........Unless it never came with one, it which case it stands to reason it must be secondhand...........A picture as requested would certainly be a help, but he hasn't been back since starting this thread over 2 weeks ago, so he either made a mistake with his measurements, or solved the problem.............Either way, it would have been nice to at least let us know.

Would I run the instant gasket jollop around the inside of the manifold itself & then fit the exhaust/manifold over the silicone gasket?..........& likewise, run a bead of instant gasket on the inside of the backplate?

Yeah, tried that..............I have a new plug in there now, but thanks for the input............

I've had that apart just now & already learnt from the pin/spring saga from a previous strip down..............lol...........The seal seems fine, as do the 2 o-rings in the carb......One thing I have noticed when starting this engine, is that it revs really high on start up........more so than the other engine, which I presume could point to an air leak......I think I'll order a new silicone manifold gasket & spring too...........That will cancel out any problems with air leaks from there.

Quick update.............I've just discovered a small split in the concertina rubber cover at the throttle end of the carb....This could well be the cause........Will need to try & source one from somewhere. *Edit...............I've googled the rubber boot & it doesn't act as a seal, just as a dust preventor, so it won't be that, although a new one is in order, as I've just split it further.

Yeah, I used the same car on both engines, so have ruled out fuel lines etc.......When you say backplate, do you mean behind the pull start?.....I think I'll strip the engine down & have a good look..........I've started off with the HSN at 3 1/2 turns out from closed & the LSN flush............

I have 2 Force engines, one .21 & the other .25. I have the .21 tuned to perfection, but the other one is proving an absolute nightmare. It's either too rich or too lean. I just cannot get it running correctly. I've fitted new clutch shoes & springs, a new flywheel, new carb needles & a new exhaust.....& it has good compression.........There's no leaks anywhere & the heatsink is tight on..............It just seems to be one of those engines that refuses to tune properly...........I shall keep persevering, because I refuse to be beaten, but it is starting to do my head in.....................

That 2 speed bell housing has my name written all over it....................

Yeah, I recall you pointing out these shoes before..... If the Answer ones are of any use to you, you are more than welcome. They're from BMM.....................I think I'm more suited to the lighter 0.9 ones too.................The 1mm & above are difficult to slot into the shoes. The problem I have with the Answer ones, is that the short end of the spring is at the wrong angle & too short to fit around the crankshaft.

I need help sourcing the correct clutch springs for my 3 shoe clutch, as I've discovered they differ...............In the picture below, the spring on the left, is the shape I use (note the angle of the shorter length that pushes against the centre post)....I bought 4 sets of the ones pictured on the right (Answer RC-3's), but they don't fit, as the shorter length is too short & angled wrong. I've now ordered these, as they look about right...........http://www.modelsport.co.uk/hpi-clutch-spring-set-0.9mm-1.0mm-3-each-/rc-car-products/364655 Can anyone point me in the right direction, as to a supplier apart from the above for decent, lasting springs? ......The ones I have are ok, but cheap, so break quite easily...The engines I use are Ofna Force, with a 2 speed clutch & gears......Thanks.