I attached harness lines today. As I removed the end of the boom, I noticed that there were plastic bits that remained inside the boom. They were shaped to fit inside the hollow of boom extension (is that what it's called?), but did not come out. They slid around inside the boom.
My questions: What do these bits do? Are they supposed to be attached to and come out with the boom extension. I tried to fit them back onto the boom extension when reassembling, but I don't know if they'll stay there, does it matter?
I don't think they effect the functioning of the boom, just interested to know. Appreciate any feedback.
could be a water seal, that's supposed to stop the whole boom filling with water.
Give us the make and model boom, that may ring bells with somebody.
yep, chickster they are commonly called a pointy plastic thingy that helps with the insertion of the boom rear end when it is disassembled.
they tend to drop off in time and should be thrown at the dog or used as replacement barrel bungs at the jack daniels brewery.
nuffin better than tossin dem barrel bungs. 
with the technolimits booms, they have foam wich runs up tube, so when the boom extends, and there are holes showing at the end of the boom, water doesnt feed inside the boom, and wieght it, as well as sink it when its in the water.
i would guess this is the same think in your boom, just plastic not foam, and instead of being in the extendable bit, its inside the bigger tube.
(exuse spelling, woke up 7- went to school till 3.30 then sailed from 3.45 to 7 so i can barely see)
My "pointy plastic thingys" tended to disappear inside the boom, so it didn't really help with the reassembly.
My boom has the white plastic foamy stuff inside the extendble (smaller tube) bit.
I thought your school/exams were over Jord??
If you're talking about short (30-40mmish) plastic 'bung' things that fit inside the end of the inner(extendable) ali after the foam stuff is in there, then they're there to help the two tubes slide past each other, and to stop the ends of the extendable part scraping up the inside of the outer ali tube and promoting corrosion.
Fish them out, put them back on the ends of the extension part, and then find yourself a nice fat nail to 'punch' the ali with so that it gets a couple of dings, and pinches down on the plastic.. Glue works too, but I've found that the 'couple of good smacks with the nail' technique has been very effective on my HPL.
Usually they come unstuck when you collapse the boom to it's shortest possible length, and the ends of the extension section try to go around the curve of the boom. The plastic bit gets a bit stuck in the curve, and comes off when you re-extend the boom.
"nah im year 11, not 12 so i got next week and thats its. also we are like 8 days behind the southern states"
I'm from WA too, and I didn't realise there were states to the south of us 
eastern, you know what i mean,
I think you're right !!
