Select to expand quoteforceten said..
Streamlined are a California company, where they are made do know it.
i have a SL, several Chinook, alloy and carbon, Unifiber, Hot Sails Maui, Severne, maybe I sail Limoges olde man iam, but not a issue with any.
so you one in question, is it de graded when it's compromised ?
Huh? Say what???? 
Speak English man! 
Select to expand quotesailquik said..forceten said..
Streamlined are a California company, where they are made do know it.
i have a SL, several Chinook, alloy and carbon, Unifiber, Hot Sails Maui, Severne, maybe I sail Limoges olde man iam, but not a issue with any.
so you one in question, is it de graded when it's compromised ?
Huh? Say what???? Speak English man!
Could be speaking American jive mun.
Select to expand quoteImax1 said..sailquik said..forceten said..
Streamlined are a California company, where they are made do know it.
i have a SL, several Chinook, alloy and carbon, Unifiber, Hot Sails Maui, Severne, maybe I sail Limoges olde man iam, but not a issue with any.
so you one in question, is it de graded when it's compromised ?
Huh? Say what???? Speak English man!
Could be speaking American jive mun. Why didn't I realise that1
Select to expand quotesailquik said..forceten said..
Streamlined are a California company, where they are made do know it.
i have a SL, several Chinook, alloy and carbon, Unifiber, Hot Sails Maui, Severne, maybe I sail Limoges olde man iam, but not a issue with any.
so you one in question, is it de graded when it's compromised ?
Huh? Say what???? Speak English man!
Streamlined are a US based company located in California. I don't know where the extensions are made, I think other than the US.
I have the carbon EXT, it's perfect except the cleat off, and a little lever that locks it onto the Euro pin,which mine is.
Additionally I have Chinook, both carbon and alloy, carbon from Unifiber, Severne and Hot Sails Maui, which is a hybrid and adapts from SDM to RDM, no longer sold, it's really kool.
I apologize profusely for any misunderstanding.
Decided to add nylon washers to the single bolt base screws as well, minor corrosion so far.
I hope you get 10 years of safe use out of these marine products.
Personally, I would skip a few meals at McDonald's or skip a couple of cartons of beer, and just buy a new one each season or two.
This is what Streamlined extensions look like when they're never washed after use due to sheer laziness/ignorance and left to deteriorate the natural way:
Mind you the corrosion didn't appear to affect their functioning before I retired them, with the bottom one being a back up spare (when desperate!) until I removed the rope and noticed that one of the plastic pulleys had disintegrated (was a pretty old one with later models having metal pulleys). I've now got a reasonably new Streamlined 45cm extension I recently bought secondhand and today noticed that the ss screws at the base that secure the internal plastic sleeve as well as the locking latch only screw into the plastic sleeve material due to the holes in the alloy tubing being drilled bigger than the screw thread diameter, with none of the SS screw thread appearing to be in contact with the bare alloy of the tubing, so maybe this has been done to alleviate the obvious corrosion issues?
Select to expand quoteforceten said..
Streamlined are a California company, where they are made do know it.
Not anymore, Dave sold the company several years ago - think they are based in France, made in China. They try to act like they are the same but they aren't. They have license for Dave's designs but that's all. Similar to Powerex when they sold out to a Chinese company...
Select to expand quoteShifu said..Paducah said..
As for the pulley orientation, the man himself explains. 
Easy peasy but don't ask me to do it from the port side of the sail. I'm totally unable on that side.
If I can do it port and stbd with my profound mental problems and intelligence deficit then anyone can.
Apparently my deficits exceed yours. I think. I'm not sure. What does deficit mean?
Select to expand quotegorgesailor said..forceten said..
Streamlined are a California company, where they are made do know it.
Not anymore, Dave sold the company several years ago - think they are based in France, made in China. They try to act like they are the same but they aren't. They have license for Dave's designs but that's all. Similar to Powerex when they sold out to a Chinese company...
Thx learn something new all the time.Still says American on the site, first page
www.streamlined.us/
100% its now in French hands unfortunately. Communication is terrible. Despite being a great product I've given up on them. Look after what you have already, the future doesn't look good for Streamlined products
Select to expand quoteGazMan said..
This is what Streamlined extensions look like when they're never washed after use due to sheer laziness/ignorance and left to deteriorate the natural way:
Mind you the corrosion didn't appear to affect their functioning before I retired them, with the bottom one being a back up spare (when desperate!) until I removed the rope and noticed that one of the plastic pulleys had disintegrated (was a pretty old one with later models having metal pulleys). I've now got a reasonably new Streamlined 45cm extension I recently bought secondhand and today noticed that the ss screws at the base that secure the internal plastic sleeve as well as the locking latch only screw into the plastic sleeve material due to the holes in the alloy tubing being drilled bigger than the screw thread diameter, with none of the SS screw thread appearing to be in contact with the bare alloy of the tubing, so maybe this has been done to alleviate the obvious corrosion issues?
Thanks for those pics, makes me feel better about how long mine will last. I was wondering if the two screws needed to contact the tube, so drilling the holes out in the tube is an option if the teflon tape I put on the screw threads does not stop the corrosion.
My newer ext. is about 2 yrs old and has the plastic pulleys.
Select to expand quoteGazMan said..
This is what Streamlined extensions look like when they're never washed after use due to sheer laziness/ignorance and left to deteriorate the natural way:
Mind you the corrosion didn't appear to affect their functioning before I retired them, with the bottom one being a back up spare (when desperate!) until I removed the rope and noticed that one of the plastic pulleys had disintegrated (was a pretty old one with later models having metal pulleys). I've now got a reasonably new Streamlined 45cm extension I recently bought secondhand and today noticed that the ss screws at the base that secure the internal plastic sleeve as well as the locking latch only screw into the plastic sleeve material due to the holes in the alloy tubing being drilled bigger than the screw thread diameter, with none of the SS screw thread appearing to be in contact with the bare alloy of the tubing, so maybe this has been done to alleviate the obvious corrosion issues?
GazMan, can you post a picture of the newer ext. with the screws in and out? thanks
Select to expand quoteSandman1221 said..GazMan said..
This is what Streamlined extensions look like when they're never washed after use due to sheer laziness/ignorance and left to deteriorate the natural way:
Mind you the corrosion didn't appear to affect their functioning before I retired them, with the bottom one being a back up spare (when desperate!) until I removed the rope and noticed that one of the plastic pulleys had disintegrated (was a pretty old one with later models having metal pulleys). I've now got a reasonably new Streamlined 45cm extension I recently bought secondhand and today noticed that the ss screws at the base that secure the internal plastic sleeve as well as the locking latch only screw into the plastic sleeve material due to the holes in the alloy tubing being drilled bigger than the screw thread diameter, with none of the SS screw thread appearing to be in contact with the bare alloy of the tubing, so maybe this has been done to alleviate the obvious corrosion issues?
GazMan, can you post a picture of the newer ext. with the screws in and out? thanks
Hey Sandman, I just replied to your email via Seabreeze.
Its pretty obvious in the above pic of the heavily corroded area on the bottom extension where the screw secures the locking latch that the screw threads into the alloy tube, which is where the worst of the corrosion takes place. Whilst it might seem like a good idea to drill the hole in the alloy tube oversize so that the stainless steel screw doesn't make contact with the alloy tube in order to minimise or eliminate the galvanic corrosion taking place between dissimilar metals, I have my reservations about this connection as I can't imagine that the screw will grip and hold particularly well into plastic compared to being threaded into metal. In a harsh marine environment I don't think this method of fixture is satisfactory!
Select to expand quoteGazMan said..Sandman1221 said..GazMan said..
This is what Streamlined extensions look like when they're never washed after use due to sheer laziness/ignorance and left to deteriorate the natural way:
Mind you the corrosion didn't appear to affect their functioning before I retired them, with the bottom one being a back up spare (when desperate!) until I removed the rope and noticed that one of the plastic pulleys had disintegrated (was a pretty old one with later models having metal pulleys). I've now got a reasonably new Streamlined 45cm extension I recently bought secondhand and today noticed that the ss screws at the base that secure the internal plastic sleeve as well as the locking latch only screw into the plastic sleeve material due to the holes in the alloy tubing being drilled bigger than the screw thread diameter, with none of the SS screw thread appearing to be in contact with the bare alloy of the tubing, so maybe this has been done to alleviate the obvious corrosion issues?
GazMan, can you post a picture of the newer ext. with the screws in and out? thanks
Hey Sandman, I just replied to your email via Seabreeze.
Its pretty obvious in the above pic of the heavily corroded area on the bottom extension where the screw secures the locking latch that the screw threads into the alloy tube, which is where the worst of the corrosion takes place. Whilst it might seem like a good idea to drill the hole in the alloy tube oversize so that the stainless steel screw doesn't make contact with the alloy tube in order to minimise or eliminate the galvanic corrosion taking place between dissimilar metals, I have my reservations about this connection as I can't imagine that the screw will grip and hold particularly well into plastic compared to being threaded into metal. In a harsh marine environment I don't think this method of fixture is satisfactory!
Hey GazMan, okay, I checked the screw and the teflon tape is still covering the threads, so contact with aluminum is not too tight, will see if the corrosion stops or continues over time.
Select to expand quoteSandman1221 said..
Decided to add nylon washers to the single bolt base screws as well, minor corrosion so far.
Now the nut is not screwed on and fully threaded ... you can see it is only half-threaded ... and maybe you have missed the threadlock too ... this is a much bigger safety risk than minor corrosion after 5 years.
In the time you have spent on this project, you could have done a few deliveries for Ubereats that would have paid for a new one ... or skip a few McDonalds meals.
Select to expand quoteJakeNN said..Sandman1221 said..
Decided to add nylon washers to the single bolt base screws as well, minor corrosion so far.
Now the nut is not screwed on and fully threaded ... you can see it is only half-threaded ... and maybe you have missed the threadlock too ... this is a much bigger safety risk than minor corrosion after 5 years.
In the time you have spent on this project, you could have done a few deliveries for Ubereats that would have paid for a new one ... or skip a few McDonalds meals.
The upper screw originally had a brass spacer for the lock, the two washers are about the same thickness, upper and lower screws are same length so what works for upper should work for lower. It is secure, and good for many more years, I like to use things as long as reasonably possible, good old wast not want not!
Select to expand quoteJakeNN said..
In the photos, it doesn't look correctly threaded .. so please be careful.
it is threaded correctly, but it is hard to get the nylon washer perfectly aligned with the ss washer, so makes it look a little off.
One of the reasons I wanted to stop the corrosion was so I could keep using the extensions AND the single bolt base, the Streamlined base has only two ears to rotate it, I added a piece of white plastic (see pic above) so that the ears are aligned parallel to the board lengthwise when tight. I put my foot right next to the mast base sometimes and do not want to step on a hard plastic mast base ear found on most/all other mast bases with more than two ears.
Back in Nov. 2020 Sprayed all the areas on the Streamlined extensions that showed signs of corrosion with Boeshield T-9 rust and corrosion protection, it leaves a waterproof wax layer after drying, have not seen any progression of the corrosion since using it. Now I did wrap the screw threads with teflon tape, and added nylon washers, as described above, so that certainly helped too. Looks like I will get many more years of use out of my Streamlined extensions!
