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Model Forum / Radio Controlled / Land Models / September 2006Weeeeeeeee *crunch*
Rear diff let go today fully. It's been clicking for a while (it's about 3 years and 3 engines old, including an SH .28 and a K4.6 and it's seen the STS.30 break in and loosen up...), but it's lasted amazingly well. Conveniently, last night I ordered http://www.rchopups.co.uk/item--6061-Savage-Hybrid-Bulk-Heads-Fast-Lane-Machine- FLM40000--FLM40000.html Which will be here tmrw, and I have a spanking new diff and pinion to slap in - which is nice :) It's the way it died that made me so proud. My insistence for no real reason on sticking to slippy teflon clutch shoes, and super soft and low suspension, with 18/48 gearing means the Sav has never really been an off the line wheelier - also because I've only just got first gear working this week... (SH was still able to wheelie, with huge wheels on too). Today, went out to tune it up after fitting a new manifold and alu clutch - got the tune right, nailed it (quite long grass) - MASSIVE 30 foot wheelie (no wheelie bar, dunno how it didn't flip - suspect just too low, balanced on the Ti skid). Landed in front of me (noticeable LOTS of clicking from the rear...). Nailed it again to do another huge wheelie - floored it, front lifted, crunch - diff ate itself. Convenient that I was changing it tmrw anyway hehe!  SignatureDan - on his PC > Rear diff let go today fully. It's been clicking for a while (it's about > 3 years and 3 engines old, including an SH .28 and a K4.6 and it's seen [quoted text clipped - 16 lines] > another huge wheelie - floored it, front lifted, crunch - diff ate itself. > Convenient that I was changing it tmrw anyway hehe! Holy crap, I got so....much....to....learn..... I havent a clue what you just said, all I know you bust something important and you have a new bit coming to replace. it. Where you lost me: Rear Diff SH.28 K4.6 STS.30 spanking new diff (suspect a shinier better Rear Diff - whats a rear diff? ) pinion slippy teflon clutch shoes 18/48 gearing SH was still able to wheelie (Whats an SH?) manifold alu clutch wheelie bar Ti skid G. > Holy crap, I got so....much....to....learn..... > [quoted text clipped - 3 lines] > Where you lost me: > Rear Diff Rear differential, divides the power between the 2 rear wheels. > SH.28 A 4.6cc .28 engine made by SH > K4.6 A 4.6cc .28 engine made by HPi > STS.30 A .30 4.9cc engine made by STS > spanking new diff (suspect a shinier better Rear Diff - whats a rear > diff? ) A replacement for the one I blew up :) > pinion The centre gearbox sends drive down the 2 centre drive shafts, these in turn go into cups in the front of the front and rear differential housings, which connect to a pinion (small cog) which in turn connects to the ring gear (big gear) on the differential to turn it. > slippy teflon clutch shoes The type of clutch shoes I used to use, were black teflon, they slip a lot and you get more revs than motion. > 18/48 gearing 18tooth clutchbell (the cog on the front of the engine housing the clutch) and 48 tooth spur gear (the main gear the engine drives) > SH was still able to wheelie (Whats an SH?) The SH was an engine I used to have, and it caused the truck to wheelie. > manifold Connects the engine to the exhaust pipe. > alu clutch Replacement for a teflon clutch, basically harder wearing and bites harder. > wheelie bar A kinda ugly little thing sticking out the back of a truck, with a wheel on, that stops the truck from flipping if you wheelie. > Ti skid Titanium skid plate, the bits that hits the ground on the bottom of the bumpers. > G. SignatureDan - on his PC > Rear diff let go today fully. It's been clicking for a while (it's about > 3 years and 3 engines old, including an SH .28 and a K4.6 and it's seen [quoted text clipped - 16 lines] > another huge wheelie - floored it, front lifted, crunch - diff ate itself. > Convenient that I was changing it tmrw anyway hehe! Well guess what??? I took my e-maxx out last night, didn't get the thing 5 meters away from me before the rear diff started clicking again. WTF? Those diff gears aren't even 10 battery pairs worth!! Lucky (like you) have a new set of Robinson racing hardened gears that I've been meaning to install. The sh.t thing is I wanted to put the new gearset into the back, then I had planned to keep that old set as a spare for the front (which is still original, 6 years old!), DOH! Oh well, sh.t happens :) Cheers Dre >> Rear diff let go today fully. It's been clicking for a while (it's about >> 3 years and 3 engines old, including an SH .28 and a K4.6 and it's seen [quoted text clipped - 30 lines] > > Cheers Dre Aye, it's not the end of the world :-) FLM stuff was sent first class today, so I hope to see it tmrw :-) Naturally, pics will be up... SignatureDan - on his PC >>> Rear diff let go today fully. It's been clicking for a while (it's >>> about 3 years and 3 engines old, including an SH .28 and a K4.6 and it's [quoted text clipped - 33 lines] > Aye, it's not the end of the world :-) FLM stuff was sent first class > today, so I hope to see it tmrw :-) Naturally, pics will be up... Hell no! Means I get to put tougher bits in there, LOL :) So you going for a full metal Savage?? You'd be getting close to a full metal chassis no? Cheers Dre > "DanTXD" <me@privacy.net> wrote in message >>> Cheers Dre [quoted text clipped - 8 lines] > > Cheers Dre No no no, the only none-stock metal I have is a centre skid, Ti front and rear skids (which go over the stock skids) and shock towers. I want to keep the level of metal to a minimum really as it adds so much weight, and all metal trucks (such as the MTA4 my mate used to have) seem to have durability issues which shocks and things, also stuff bends and makes things that shouldn't break break. Only gone for the FLM Hybrid bulk at the back to elimate the flex and try and help preserve my rear diff with the force of the STS and Alu clutch :-) SignatureDan - on his PC >> "DanTXD" <me@privacy.net> wrote in message >>>> Cheers Dre [quoted text clipped - 17 lines] > the back to elimate the flex and try and help preserve my rear diff with > the force of the STS and Alu clutch :-) Yeah good point, you dont want any flex in the rear diff housing! For some reason I thought you had metal a-arms as well... Do those FLM bulkheads still use that oddball HPI bearing?? the one with the tiny balls??? Cheers Dre >>> "DanTXD" <me@privacy.net> wrote in message >>>>> Cheers Dre [quoted text clipped - 25 lines] > > Cheers Dre I have no idea - it says it comes with all the stuff required though. Did you look at the link I posted somewhere? They're gearboxes and bulk head combined and at £40ukp they were not much more expensive than a GPM Bulkhead and GPM gearbox, and we all know GPM stuff is made of cheese :) SignatureDan - on his PC >>>> "DanTXD" <me@privacy.net> wrote in message >>>>>> Cheers Dre [quoted text clipped - 30 lines] > combined and at £40ukp they were not much more expensive than a GPM > Bulkhead and GPM gearbox, and we all know GPM stuff is made of cheese :) yeah I checked em out, one word springs to mind: SHINEY! But you cant see a lot from the pics. I'd be inclined to think they use the standard HPI bearings... No matter, stick a couple of torsens in there and you only have 2 of those odd ball bearings in the entire truck! Cheers Dre |
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