XRAY - Model racing cars

a paid turnmarshall wow i love america

stripped the car down today and the large inner wheel bearins where all gritty,just put them in the sonic cleaner now so should come out ok.

forgot to mention yesterday,the innner wishbone hingepins got so full of dirt/mud that after about 2-3 mins into each race the car would get lower and lower because it was making the hingepins very tight,going to ream them out a tad or try to mill a small 1mm groove down each pin to stop that happening again.

even when i cleaned them out they would repeat the problem after a few mins...had same problem on tq model so no biggie

one thing i thought i would mention regards shimming the diffs.

i know some of you have used 2 shims to take the slack up but be careful that your not actually 'crushing' the diff bearings,what i mean is that by adding 1 shim for us it took the side float up in the diff casing but left some play in the meshing,adding 2 shim took the meshing play out,but this then put a lot of load on the 2 diff bearings as your effectively pushing them closer to each other putting them under a constant high load.

take the pinion gear out and try the diff on its own with 2 shims with both halves of the gearbox casing screwed together,the diff should spin freely,if it doesnt then you need to take a shim out of there and add a different shim behind the pinion gear and move that forward instead to adjust the meshing.

just something we used to have to do with the electric pred buggies,maybe this is why a couple of people have had diff bearings fail?

dave

amazing turn out of 808's in the A final yesterday at DRT Proline Bow-Tie Summer Series Round 4

Blimey, thats were all the bobs were on Sunday! I think I was the only one at the SRS yesterday

JonW

well done on the results guys

i wont be racing for a few weeks now as pitting duties are called on..clanfield next week and then the euros in france..good thing is its an 808 im pitting for

dave

Has Bruce come over to the dark side then Dave

used my xb808 for the first time a couple of weekends ago at j12 raceway, out the of the box with the standard shock setup and 5-5-2 in the diffs the car felt amazing, easily one of the most stable and quickest cars there, unfortunately a servo horn stripping in the final caused me to pull out halfway through the final but all in all the car is fantastic, never been able to drive so quick ever before

stuck with the current diff oil setup as i like how it drives.

cracking car, top stuff xray, shame some of the new aluminium bits weren't included in the kit, but at this moment in time i can't grumble as i haven't broken a single bit.

minty