Hi guys, not sure if im in the right department but here goes, I have the misfortune to have the dreaded remis rooflight and having trouble winding up in fact I have to push as I wind otherwise im sure something is gonna go,Is fctory fitted to my 2007 bailey which I belive they stopped fitting soon after as there were problems, with so many moving parts its inevitable theres going to be problems, why not a simple heki, anyway ive heard you can clean out the gearbox as gunk collects there and the winding mechanism just wondered before I start and loosing springs n circlips has anyone done this and could advise how to I know replaceing with a heki would be the solution, but my financial adviser wont allow access to my wallet.
You are right. Some of them seem to stick when one tries to open them unless they are given a sharp bash to get them started. It is as if they were sticking on the surround attached to the roof but, upon examination, I came to the conclusion that it was a winding mechanism geometry problem for which there is no easy solution. I replaced one with a new one when the winding mechanism fell to pieces and the new one was not much different in that it still stuck but it wasn't quite as bad. My current caravan, a 6 year old Eldis, has the same unit but it doesn't stick which suggests that, either I am lucky or the manufacturers have come to their senses and done some redesign work.
If you want to go down the replacement route, it is not difficult for the competent DIY enthusiast. It is probably a 400mm x 400mm unit but that would need to be checked. A replacement costs around the £50 mark which causes one to wince. If it is a 400mm x 400mm unit, any other unit of that size can be accommodated.
Replacement is time consuming and messy as, once the unit has been removed from the roof, all the sealant has to be removed down to the bare metal roof skin. Do not under any circumstances be tempted to use a screw driver or a metal scraper as they will damage the roof. A flat piece of wood about 9 mm x 25mm tapered to give a 25mm wide scraping edge will suffice. After a bit of practice, you will get the angle at which to hold it right and the sealant will come off quite easily. once all the sealant has been scraped off, lots of rags or kitchen roll and a bottle of white spirit will clean the residue off down to the metal. This has to be done to give the new sealant a chance to grip the metal.
Once all the sealant has been removed and the white spirit has been wiped off and left to dry, a small, continuous bead of NON-SETTING sealant is needed round the edge of the opening. Offer up the new unit to the hole from the top of the roof and press it down. Ensure that the sealant has been flattened all the way round (we don't want water getting in through gaps in the seal) and the excess has been squeezed out all the way round. Offer up the inside half of the unit and screw them together. Once they are firmly screwed together, test the mechanism, run a wet finger round the excess sealant on the roof to make sure that all the gaps, if any, are closed and the sealant is continuous.
Thanks, but I dont think im up to replacing a new remis, I'd rather put the money towards a fully fitted heki, but im sure I've seen someone clean out a load of gunk from the gearbox and caterpiller drive, just cant remember where,