asquaddie Posted June 20, 2019 Share Posted June 20, 2019 Need another few opinions, please? Is this the start of the dreaded Moster 185+ cracking exhaust syndrome or just the outer shell (ha! ha!) What's the fix Tony Quote Link to comment Share on other sites More sharing options...
Lufthansi Posted June 20, 2019 Share Posted June 20, 2019 Hi, not only the moster has the proplem. I had the same problem because my engine was too lean and I didn't let the engine warm up. Watch the video 1 Quote Link to comment Share on other sites More sharing options...
asquaddie Posted June 20, 2019 Author Share Posted June 20, 2019 Lufthansi, Thanks for the video. Not sure how long I take to warm up the engine, to be honest, but I know that I do warm it up (maybe not for 3 mins on idle). Nice video to watch afterward's Tony Quote Link to comment Share on other sites More sharing options...
Richard Leishman Posted June 20, 2019 Share Posted June 20, 2019 Hi Tony, I have just had my exhaust repaired by one of our clients. After repairing, he also gave me a report into why he thinks so many of them are cracking. I was not aware of the 3-minute warm-up procedure, but I was naturally doing it as I would run my engine and then go set up my wing. My motor has roughly 30 - 35 hours. I am relaying his words as I remember them, I am no expert: The exhaust is made in two halves by pressing/forming "thin" sheets of carbon steel into a press. When steel is formed into a mould, you send up with parts of the steel that are stretched more than others. He said that the main cause of the crack is due to the type of metal used (there are better metals, but this increases cost) and that there are parts close to the exhaust of the engine that has been stretch so much that they are wafer thin. He said that what they could have done was to make the exhaust in more parts, reducing the amount of stretch up at the neck of the exhaust. Vortex Aero has made an aftermarket exhaust that implements this. https://www.vortexaero.com/product-page/vittorazi-moster-engine-exhaust In my case, I had a big crack like yours and one of the springs had ripped off. He has added a new plate over the top to strengthen the neck. Before and after shots attached. He charged me 3 hours of labour. Richard 1 Quote Link to comment Share on other sites More sharing options...
asquaddie Posted June 20, 2019 Author Share Posted June 20, 2019 Richard Sorry to say, your motor looks really poorly. Thank you for the photos, now mine doesn't look so bad. The positive side for me is I've caught it early on, so hoping for a quick fix (motor and I) Tony Quote Link to comment Share on other sites More sharing options...
Blackburn Mark Posted June 20, 2019 Share Posted June 20, 2019 3 hours ago, asquaddie said: or just the outer shell Are you saying there are two skins on that exhaust or are you assuming the crack does not penetrate? Shame you are so far away, I'm charitable enough to drill and run a bead through that but I couldn't be arsed messing around with postage... you must know someone with a tig welder? If you clean it up and drill it, I'm sure a local fab shop would run a bead through it for a few quid. Quote Link to comment Share on other sites More sharing options...
asquaddie Posted June 20, 2019 Author Share Posted June 20, 2019 2 minutes ago, Blackburn Mark said: or just the outer shell Not sure what I am saying to be honest. It just looks like two folded pieces on top, so I was guessing it must be a double layer!!! 3 minutes ago, Blackburn Mark said: but I couldn't be arsed messing around with postage Thanks for that. Quote Link to comment Share on other sites More sharing options...
Richard Leishman Posted June 20, 2019 Share Posted June 20, 2019 8 minutes ago, asquaddie said: Sorry to say, your motor looks really poorly. Was poorly The end two photos are repaired. This was me last night, engine has never felt so good Quote Link to comment Share on other sites More sharing options...
Richard Leishman Posted June 20, 2019 Share Posted June 20, 2019 9 minutes ago, Blackburn Mark said: Are you saying there are two skins on that exhaust or are you assuming the crack does not penetrate? There are two skins on the moster 185 exhaust, only on one side at the top of the neck. The crack does only penetrate the top layer. Quote Link to comment Share on other sites More sharing options...
Blackburn Mark Posted June 20, 2019 Share Posted June 20, 2019 7 minutes ago, Richard Leishman said: There are two skins Ah... I would never have thought that looking at that image. Surprised it has cracked where it has with two skins. Quote Link to comment Share on other sites More sharing options...
Blackburn Mark Posted June 20, 2019 Share Posted June 20, 2019 30 minutes ago, asquaddie said: Thanks for that. Don't make me feel bad! Besides, I'm not sure what I would do with two skins... it might get ugly If you are absolutely stuck, I "might" be persuaded but I'm not guaranteeing the outer skin wont get welded to the inner skin. Quote Link to comment Share on other sites More sharing options...
asquaddie Posted June 20, 2019 Author Share Posted June 20, 2019 A friend of a friend told me about a welder close by. The best in the South West..... He sounded very knowledgeable and welded the exhaust as below. All looks good, just wondering if there is a second skin and was it intact!!! Richard - Your first photo looks the same - I guess that was just tig welded too. Quote Link to comment Share on other sites More sharing options...
Blackburn Mark Posted June 20, 2019 Share Posted June 20, 2019 Great stuff Keep him fed with Jaffa cakes... I spend quite a bit of time chasing cracks on my exhaust Quote Link to comment Share on other sites More sharing options...
asquaddie Posted June 20, 2019 Author Share Posted June 20, 2019 fed him with £25. Quote Link to comment Share on other sites More sharing options...
Richard Leishman Posted June 21, 2019 Share Posted June 21, 2019 My only concern based on what I have been told from people is that you are meant to sand off the paint layer and drill a hole at the ends of the crack. If you do not, you will find the crack will just continue to grow. Let us know how you get on. Looks to me like he hasn't even sanded the paint off to see how far the crack goes under the paint. In my case I found that on the surface it looked like one line crack, but we found that under the paint it was more like a tree branch on one end of the crack. As stated above, I am no expert, but simply welding a single line sounds too easy. Quote Link to comment Share on other sites More sharing options...
asquaddie Posted June 21, 2019 Author Share Posted June 21, 2019 11 minutes ago, Richard Leishman said: Looks to me like he hasn't even sanded the paint off to see how far the crack goes under the paint. Richard. I did watch him and he did all around the crack and then tig weld. He did not drill holes I think. Quote Link to comment Share on other sites More sharing options...
Blackburn Mark Posted June 21, 2019 Share Posted June 21, 2019 If I was doing a job on someone else's gear, I would drill... I don't bother on my own gear, iv not had one continue along the same crack... I do eventually have to run a bead somewhere new though, its become a pretty ugly over the years I guess fragile is the price we pay for lightweight. 3 Quote Link to comment Share on other sites More sharing options...
Vitor Cruz Posted May 6, 2020 Share Posted May 6, 2020 (edited) https://m.facebook.com/story.php?story_fbid=3184842794881891&id=100000686063623 I have for sale escapes for moster vitorazzi. With warranty do not leave. Edited May 6, 2020 by Vitor Cruz Quote Link to comment Share on other sites More sharing options...
Joy Airton da Silva Posted November 12, 2020 Share Posted November 12, 2020 No dia 05/06/2020 às 06h31, Vitor Cruz disse: https://m.facebook.com/story.php?story_fbid=3184842794881891&id=100000686063623 Tenho à venda fugas para moster vitorazzi. Com garantia não saia. Boa Tarde! De onde você é Vitor Cruz? Você tem a venda este sistema de escape para o Moster classic 185? Qual o valor? Quote Link to comment Share on other sites More sharing options...
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