Hi all! Does someone of you know exactly which size of 5 star torx fits the Optimus srv on the filler cap? That would be a great help to me because I really don't want to buy a full set of bits that I will probably never use anyway. Thanks Simon
It's not a Torx bit that I've ever come across. I ground a pentagon on a hex key to fit Alternatively, a 'pentagonal wrench' was avaiable from Blue Water Stoves (Bernie Dawg) as I recall. John
If I remember....none fit it, but you have to file one down to make it fit. Someone with more "know" than me will step in shortly.
There are indeed 5 sided torx bits. It's some kind of special security thing used in cars and such... The quietstove guy sells the fitting bit on ebay. But with shipping to germany it's pretty expensive for a single bit. here is the ebay link: http://www.ebay.de/itm/QUIETSTOVE-SRV-driver-For-SVEA-123-123R-Optimus-8R-111-/321687830925
Hi Webster, I put together a post but meanwhile noticed you answered your own question. So, Quietguy found the size star bit and happy to sell them as SRV driver, overall that has been a good thing but not without potential problems. If you look further ebayUS search Pentalobe torx tamperproof bit and you can find a set for less than the 1 above. Make sure it is the 5 point variety. Either one will work quickly and completely if set screw is not seized in-place / stuck. Neither one are, by-design, tools for the type of penta screws on vintage stoves. They are for security screws, screws that have a head that the bit (with rounded points) is a perfect snug fit. I credit BD for pointing out that in some cases using these bits with rounded points are damaging the brass set screws. I have seen/purchased lids with this damage to the set screws. Using a bit or penta tool with snug fit into the screw (without rounded points) will have better results. There are tools/options available that happen to be more expensive. Lastly, I offer as consideration, A. buy a set (or 2). Carefully USE the one that best fits and be happy. I don't recall the size but one of the set IS a snug fit. Improper "size" is NOT what causes potential problem. It is the "shape" with it's rounded points. It does not have as much grab as it could have (it has maximum grab for the security screws it is designed for btw). HOWEVER IF, a screw is seized and the bit wants to slip or deform the screw... THEN B. take the bit that is one or 2 sizes too large and file IT down as Presscall has shown above. Filing down a larger penta shape to a smaller penta shape, i think, will make our filing much easier. Carefully flattening the 5 sides, if successful, you will create a more snug fitting bit (with more surface grabbing and less chance of slipping). While STILL on the cheap, maybe something to consider, thx omc
So if no one here has the information about the exact pentalobe bit, that fits best, I'll buy a set and test it myself. Will post results here. But with that I'll still wait a few days, maybe some more answers will turn up... Simon
As has been said. A 5 sided 'allen' wrench it the tool to use. The torx may fit but it has probable consequences. Contact blue water stove restoration. Ken in NC
