Re: Gone in 60 Seconds Reply #75 – July 24, 2014, 10:50:46 am Quite a few U300s have the wrap (probably some Cummins and CATs too). It will give slightly more HP as well as protecting the turbo and pipes from insulation sag. Components close to the turbo will run cooler. From the photo, you can see the ECU is only inches away from the turbo. The wrapped fuel line is visible that goes into the ECU to cool it. Race cars have wrapped turbos for years. Proper engine management technique is a must after a long climb on a hot day. With the insulation around the hot turbo, fast idling for a few minutes is even more important as the heat soak will really bring turbo oil temperature up as soon as the engine is shut down. Diesel pushers need a placard on the dash "fast idle a hot engine for several minutes." On a hot summer day, many diesel pushers have difficulty keeping the engine cool on long grades so operators need to keep it in mind.If I saw a wrap advertised for a decent price, I would probably fit it to ours.Pierce Quote Selected
Re: Gone in 60 Seconds Reply #76 – July 24, 2014, 11:19:22 am Pierce, I don't know what you consider a fair price but I've contacted ATP about the thermal wrap kits for my Cummins C8.3, which includes turbo blanket, exhaust manifold blanket, and a blanket for the down pipe. There are two prices for mine depending on the temperature rating of the blanket material. I think it was $570 for the 1100 degree material and just less than $800 for the 1500 degree material. They also will make blankets for your entire exhaust system piping if you provide the measurements. I'm probably going to buy the 1500 kit. Quote Selected
Re: Gone in 60 Seconds Reply #77 – July 24, 2014, 11:25:24 am Pierce, I used Hardie board after Katrina to replace the siding on my house. It is very durable, but somewhat brittle and is much stronger after painting. How about coating the Hardie board with Noxudol 999 coating for the engine, generator, and fridge compartments. It's sound deadening and fire resistant properties look amazing and it is not expensive. Can be rolled or sprayed on. Using this along with a turbo wrap as Lon suggested, and a fire suppression system I believe you would have all the bases covered. Sound Deadening Paint for Blocking and Dampening Sound in Industrialsupersoundproofingtube - Using a Fireproofing Paint Jerry Quote Selected
Re: Gone in 60 Seconds Reply #78 – July 24, 2014, 12:32:17 pm Jerry,Excellent site! I put a layer of glass between the Hardie and the plywood hoping to get a little sound deadening out of it. Have been trying to figure out what to spray on the surface of the Hardie as it will absorb grease and oil but your idea of Noxudol 999 looks like the perfect solution. Having trouble finding it in an aerosol spray. Amazon has a lot of their products but no 999. Have you seen a source?The backerboard may be brittle compared to plywood, etc. but I have a tough time breaking it even when I scribe a line with a box cutter. Think it will be fine in any fire resistive motorhome application.Pierce Quote Selected
Re: Gone in 60 Seconds Reply #79 – July 24, 2014, 12:54:29 pm Quote from: Pierce & Gaylie Stewart – July 24, 2014, 12:32:17 pmJerry,Excellent site! I put a layer of glass between the Hardie and the plywood hoping to get a little sound deadening out of it. Have been trying to figure out what to spray on the surface of the Hardie as it will absorb grease and oil but your idea of Noxudol 999 looks like the perfect solution. Having trouble finding it in an aerosol spray. Amazon has a lot of their products but no 999. Have you seen a source?The backerboard may be brittle compared to plywood, etc. but I have a tough time breaking it even when I scribe a line with a box cutter. Think it will be fine in any fire resistive motorhome application.PierceI believe Super Soundproofing Company has it. Soundproofing Liquid – Acoustical Sound Sealant and Water Based PrimersJerry Quote Selected
Re: Gone in 60 Seconds Reply #80 – July 24, 2014, 02:25:50 pm Jerry,Left a message and their sales guy just got back to me. Yes, they can get it but they only carry 1301 without special order. It is more for soundproofing. The 999 is $90/gallon and goes on with a roller in three coats. Covers only 22 square feet (1301). About $15 to ship and tax for CA residents. They have nothing but complaints about the spray cans. 1301 is available in quarts, 999 is not.Pierce Quote Selected
Re: Gone in 60 Seconds Reply #81 – July 25, 2014, 12:42:03 pm We covered our exhaust pipe after the turbo with Design Engineering Titanium Exhaust Wrap: http://www.designengineering.com/category/catalog/dei-cycle/motorcycle-exhau st-pipe-wrap-kits/titanium-exhaust-wrap-lr-technologyThis stuff is not made from fiberglass that gets into your skin and it does not need silicone spray after installation. No reason why it could not be wrapped around turbo if that is what you want to do. We used hose clamps to secure ends and other transitions. Quote Selected
Re: Gone in 60 Seconds Reply #82 – July 25, 2014, 02:02:54 pm Quote from: Barry & Cindy – July 25, 2014, 12:42:03 pm................We covered our exhaust pipe after the turbo with Design Engineering Titanium Exhaust Wrap: http://www.designengineering.com/category/catalog/dei-cycle/motorcycle-exhau st-pipe-wrap-kits/titanium-exhaust-wrap-lr-technology Barry,Link is broken.......has a space in it.This works:Titanium Exhaust Wrap with LR Technology 010128 | Purchase DEI, CryO2, Ny-Trex,Good stuff!Neal Quote Selected
Re: Gone in 60 Seconds Reply #83 – July 25, 2014, 08:08:24 pm Quote from: Barry & Cindy – July 25, 2014, 12:42:03 pmWe covered our exhaust pipe after the turbo with Design Engineering Titanium Exhaust Wrap: http://www.designengineering.com/category/catalog/dei-cycle/motorcycle-exhau st-pipe-wrap-kits/titanium-exhaust-wrap-lr-technologyThis stuff is not made from fiberglass that gets into your skin and it does not need silicone spray after installation. No reason why it could not be wrapped around turbo if that is what you want to do. We used hose clamps to secure ends and other transitions.I've considered that Barry. What is your opinion on wrapping the turbo, manifold, and down pipe? Was it worth it and did it make a difference in your under hood temps? Quote Selected
Re: Gone in 60 Seconds Reply #84 – July 26, 2014, 12:46:04 am We did not wrap the exhaust manifold or turbo. Just the pipe out of the turbo down and around almost to our resonator. We also lined our engine with Thermo Tec double sided foil at the same time. So we have no idea if temps are lower.I would be concerned about wrapping manifold or turbo, as we would be holding heat in more, and maybe getting the manifold or turbo too hot.Titanium Exhaust Wrap was easier than we thought. Quote Selected
Re: Gone in 60 Seconds Reply #85 – July 26, 2014, 08:12:18 am In my world of small displacement turbo race engines, it's common to wrap the turo hotside and downpipe to keep the heat in and underhood temps down. But diesels, running for long periods under boost, I would want to do some research first. I didn 't wrap the turbo or downpipe to the resonator. There is so much clearance in that engine room that I'm not concerned about temp, and decided I was more concerned about the wrap making more rust problems on my homebrew plumbing. Quote Selected
Re: Gone in 60 Seconds Reply #86 – July 27, 2014, 12:04:45 am RE: > On: Fri Jul 25, 2014 Barry & Cindy Wrote: Quote................We covered our exhaust pipe after the turbo with Design Engineering Titanium Exhaust Wrap:Here you go, link fixed: http://www.designengineering.com/category/catalog/dei-cycle/motorcycle-exhau st-pipe-wrap-kits/titanium-exhaust-wrap-lr-technologyAuto stores also carry it. Quote Selected
Re: Gone in 60 Seconds Reply #87 – July 27, 2014, 10:06:48 am With our turbo being so close to the top of the compartment, I have been looking at a lot of forums to see what others are doing. There seems to be a lot of discussion as to the advantages as far as power goes with not many lab tests but everyone seems to be in agreement that the blanket and wrap does lower engine room temperature a lot. One boat forum noted there seemed to be less Detroit engine fires with the blanket over the turbo (lots of 6V-92s in boats). There is also a question whether the "Made in the USA" cover from Cincinnati is better than the Chinese cover. Also, whether the fiberglass Chinese tape is as good as the "Volcanic Lava" tape. In looking at many engine supplier's websites, the cost may exceed $300 just for the cover. The Cincinnati cover is only $89 so less than $200 for everything out the door. One thing everyone seemed to agree on was failure to cool the turbo, either by a electric oil pump or fast idling for at least a couple of minutes before shutting down after any kind of load will result in much higher temperatures from heat sink in the turbo resulting in a shorter life because of coking. Full synthetic oil won't coke. For one of our coaches, installing an instrument panel placard "fast idle for 2 minutes before shutting down" would be prudent after a blanket/wrap modification. Ebay link to the covers, tapes and all the different color possibilities: turbo wrap | eBay .Pierce Quote Selected
Re: Gone in 60 Seconds Reply #88 – July 27, 2014, 10:48:56 am All of the products above advertise that they are good from 1800 degrees continuous up to 2200-3000 degrees intermittent. Pierce Quote Selected
Re: Gone in 60 Seconds Reply #89 – July 27, 2014, 12:15:56 pm What size turbo would be on the M 11 eng? Quote Selected
Re: Gone in 60 Seconds Reply #90 – July 27, 2014, 12:23:22 pm Installed manual timers in dashboards of Foretravels after seeing a trucker customers installation. Egg timer type units. After the set time the motor turned off. Quote Selected
Re: Gone in 60 Seconds Reply #91 – July 27, 2014, 10:26:53 pm Quote from: Caflashbob – July 27, 2014, 12:23:22 pmInstalled manual timers in dashboards of Foretravels after seeing a trucker customers installation. Egg timer type units. After the set time the motor turned off. Now that I've got my EGT gauge installed, it is pretty easy to see when everything cools down to a normal idle temperature but a turbo timer would work well for people without gauges. I remember those being a big thing back in the early 90s on import cars.Here is a link to the blankets I was talking about earlier- Transport Quote Selected
Re: Gone in 60 Seconds Reply #92 – August 11, 2014, 02:14:00 am littledubz,I know you are still reeling from the fire disaster and the exact cause has yet to be determined. We're all sorry for your loss and want to know what happened. I want to raise the possibility of a coolant related fire known to happen on side mounted radiators on diesel rvs such as your U300 and mine that are also equipped with hydraulic fans. I found a discussion on another forum that explains how this could happen when a leak in a radiator hose occurs with a 50/50 mixture of water and ethylene glycol. Even with a pinhole leak the fan can spray the coolant onto the hot manifold or turbo and the water is vaporized leaving the concentrated alcohol based glycol to burn in a very hot fire at only 782 degrees. In one case a faulty bracket on the fan motor caused a leak in the radiator with the same disastrous result. Other causes mentioned were bad fan bearings, leaking injectors and electrical fires. Coolant-related Diesel Motorhome FiresSadly we may never know what happened but here's an excellent article from RV Alliance America that can help us to be vigilant and aware of the many potential fire hazards. Having fun and traveling safely is what it's all about.RV fire safety facts that could save your lifeJerry aka Murph Quote Selected
Re: Gone in 60 Seconds Reply #93 – August 11, 2014, 11:22:49 am Jerry,With a pinhole leak, the 50-50 mix could be sprayed on the hot exhaust manifold or turbo. Unless the mixture was allowed to pool and the water evaporated off, it would be unlikely to catch fire. When the mixture contacted the hot surface, the water would turn to steam and expand up to 1700 times. Since it takes a lot of energy to vaporize the mixture, the cloud of steam would lower temperatures and keep combustion from occurring. It's doubtful that any kind of fire extinguisher by itself, would do much to keep a fuel or exhaust system failure fire knocked down. An injector leak (not a factor with a Detroit and inline 4 cycle engines have the exhaust on the opposite side from the injectors) or turbo pipe failure downstream would continue long after an extinguisher had used up it's contents. Look at the stainless flex tubing right after it comes out the turbo on the 6V-92TA. If it failed at the connection (just a clamp holding it on), there would be essentially a blow torch against the side of the enclosure. The likely scenario is the extinguisher goes off but the engine pays absolutely no attention to the failure or the fire extinguisher. Since the air intake is far away, and the failure is on the downstream side, there is no reduction of boost or power, in other words, no way of telling that anything is wrong unless you look in the mirror. By that time, it's too late.A heat detector is needed to first alert the operator that something is amiss. If the extinguisher was triggered at the same time, the operator would have to pull over and shut down immediately or the fire would continue once the extinguisher had emptied. You would need a second manually operated extinguisher to make sure it was out and stayed out. Our compartment roof has been lined with backerboard and looks good. It is a much bigger job finishing the rest of the compartment. Will post photos soon. Ordering a turbo blanket/pipe wrap to keep temps down.Pierce Quote Selected
Re: Gone in 60 Seconds Reply #94 – August 11, 2014, 03:45:14 pm Most fire suppression systems I have seen for diesels have a cutoff for the air. Without that a diesel with a major fuel leak would keep running, likely out of control. Quote Selected
Re: Gone in 60 Seconds Reply #95 – August 11, 2014, 04:04:16 pm For an electronic diesel, ECU fuel cutoff would work OK if you didn't have any false alarms. Shutting off air on a Detroit would be difficult as they will collapse most anything in the way of an air source. Also expensive to set up.We must have had ten or more false alarms from sensors for every fire we responded to. Image a false shutdown on a busy freeway. Plus, how do you reset a mechanical air cutoff out in traffic without getting run over?No real way for a diesel to get extra fuel into the intake. Most air sources are feet away and diesel will remain a liquid in most circumstances. We always parked upwind at natural gas or propane leaks as that was a good way for the engine to run away. Pierce Quote Selected
Re: Gone in 60 Seconds Reply #96 – August 11, 2014, 07:25:50 pm Most of my experience with fire suppression systems is with aircraft and boats. Both are extremely fire intolerant. Diesels in boats have engine shut offs because fire suppression chemicals will be sucked into the engine and attenuate any ability to extinguish the fire. Quote Selected
Topic: Gone in 60 Seconds