Jump to content

Welcome to TheMalibuCrew!

As a guest, you are welcome to poke around and view the majority of the content that we have to offer, but in order to post, search, contact members, and get full use out of the website you will need to Register for an Account. It's free and it's easy, so don't hesitate to join the TheMalibuCrew Family today!

Search the Community

Showing results for tags 'impeller'.

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • Website Announcements & Feedback
    • Website Announcements
    • Website Feedback & Support
  • Discussions
    • General Discussion Area
    • Watersports & Gear
    • Modifications & Accessories
    • Boat Storage
    • Trailers & Tow Rigs
    • Ballast Info & How-to
    • Stereo Info & How-To
    • Maintenance, Tech Info & Troubleshooting
    • DIY Articles
  • TheMalibuCrew On & Off the Water
    • Events
  • Classifieds, Deals & Discounts
    • Classifieds
    • Supporter Discounts and Group Buys
    • Group Buys For All Members
    • Group Buy Requests
    • Deal Street

Product Groups

  • Subscription Packages
  • MalibuCrew Gear
  • Other

Categories

  • Items For Sale
  • Items Wanted
  • Post a Freebie

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Found 6 results

  1. Just posting this here in case someone searches while trying to solve this issue. I had an overheating issue earlier this year and figured it was my impeller as it had been in for 3-4 years. Now... I know they are supposed to be changed every year, but in the 22VLX it is a very painful job due to the transom step being dead center over the pump. The job is basically totally blind and done by feel. Its such a terrible design that I almost feel like it was on purpose to be sure you bring it in to the dealer... I digress. I am fairly mechanically inclined and restore land cruisers for fun. Well, there is basically no way to get leverage to pull the impeller out if it is at all stuck, Ultimately after a bunch of different tools, I broke down and bought an impeller puller from Bakes to get it out (again not fun to do blind). The impeller was shredded and none of the fragments were in the impeller housing. So on to the disassembly of the cooling system to get the parts out. Here is the water flow for a 22VLX From the water intake on the hull water flows first to to strainer basket on the starboard side of the transmission. Hose then goes from strainer down starboard side of engine and then wraps around and up to the impeller pump which is mounted on the stern side of the engine (front of the block). The outlet side of the pump sends water all the way back forward to the port side of the transmission. The water then exits the starboard side of the transmission and travels down the starboard side of the engine (again) where it enters the starboard heat exchanger which is mounted obliquely on the block aimed towards the thermostat housing. THIS IS WHERE THE FRAGMENTS GET CAUGHT. To get the fragments out, take the hose off the inlet side of the heat exchanger. This is done by taking the hose off as it enters the inferior and lateral part of this heat exchanger and sweeping your finger up inside the exchanger. There is a strainer in there that traps the fragments. Dump the water line that you disconnected down to get any additional free floating parts out. Next, I took the thermostat housing off. This is done by removing 6 allen bolts on the intake manifold and lifting it out of the way. The Thermostat is a 160degree indmar monsoon 350 t-stat. I changed it and found only a few small bits of impeller in here. Need 2 separate gaskets to do this job. I replaced the t-stat while I was in there. The impeller was replaced next. When you pull the plate off the back with a slotted screwdriver, keep track of its orientation as it is not symmetric and the gasket is difficult to line up if you cant see it! I prepared the new impeller by putting 3 zip ties on it so the fins bent for clockwise rotation when you are facing the engine on the swim platform for installation. I let it sit like this for 24h so they had a bit of memory. When ready top replace it, I cut the zip ties off as I pushed it in. Dish soap is mandatory to get it in when doing it blind. Actually went in fairly easy with the soap and zip ties. I tapped it in one last time with a small rubber mallet. I then put quite a bit of dish soap in the housing as it was going to be dry until suction was generated. To replace the cover, I put one screw through the plate and then the gasket and finger threaded it back on. To get the second screw, I gently rotated the plate and gasket to ger them lined up while finger threading the second screw. Once I fired the boat up, I saw suds coming out in the exhaust confirming water flow through the system. After running the boat for a few days, I had another intermittent overheating issue. Wildly fluctuating temperature. I was worried I did something wrong, but based on the fluctuations, I felt that there may be a flap of debris still in the system. Base on my first experience, I took the heat exchanger hose off first and voila there were 3 additional impeller fragments, one quite large. After I cleared it out again I have had zero problems. So the lesson here is that the fragments float around until they find there way downstream - even 5-10 engine hours later. I'll be replacing the impeller for frequently now. Hope this helps.
  2. I am trying to trouble shoot a M5DI engine that is overheating. I have cleaned out the strainer and checked around the raw water intake. The dealer is slammed and said it will be 2 weeks or more before they can get us in. My next step is to check the impeller and replace if needed then check the thermostat. Can someone tell me where these are located on the engine? A couple of pictures would be great.
  3. Has anyone changed an impeller on a 2019 Malibu Wakesetter 24MXZ with the Monson 550 supercharged? I honestly cannot seem to locate the tensioner pulley. This engine has two serpentine belts. Any help would be greatly appreciated!
  4. Quick, very basic question... where do you purchase a replacement impeller? I looked up "INDM-A036" and google sent me to Amazon. I purchased an'07 Response this time last year and we're getting ready to do the winter maintenance. The boat is mine but my rockstar husband helps me with all of the mechanical stuff. (In this case it is the wife who is in love her boat and hubby wants nothing to do with it. But he loves me so he tolerates my ski habit.) I already purchased an impeller puller. Thanks, Elissa
  5. Hello, first post here. I so appreciate this group. I am looking to the hive mind for thoughts on my recent boat troubles. I have a 2020 25LSV with now 157 hours. It has the M6di engine. First off, I want to say that this boat is wonderful and I love it. My dealer, TX Malibu has been very attentive with scheduled service and the most recent overheating episode. I am not here to complain, but rather see if anyone has experienced the same situation or has ideas on something I can do myself. As an aside, I do not trailer, boat is at a marina on a lift. I had trailers with 2 previous boats and with the charge for the storage, lack of use, etc, I decided from a hassle/money standpoint if I needed to have the boat trailered somewhere it was worth renting trailer or paying someone to do it. On Tuesday last week, at 154 hours, the engine overheated to about 218 degrees. We checked the sea strainer and it was empty, I called service dept and they suggested it was probably impeller. I had smelled burning rubber as soon as I got pulled up for surfing. I had been reading the woes of others all summer, but I suspect because I had scheduled services on the earlier side of things I had prevented this issue. Service came out and replaced impeller and to my knowledge installed a check valve. Boat worked great Friday for about 20 minutes, and then I noted an occasional "slip" upon acceleration that once caused the boat to go into limp mode. Engine temp fine, oil pressure fine, etc. I used the boat on Saturday and basically could get one tow in after a complete start/reset but then second or third pull the boat would go into limp mode. No engine alarms at all. I did drain 25% of ballast all around (only 2 people aboard with one surfer) and it worked for several pulls but then the problem recurred. Engine diagnostics show inactive engine alarm: SPN 7717 FMI 7 Description: Camshaft control lost I am not an engine gal, but I can understand what major parts are meant to do. When I look up camshaft sensor error for cars, the description is almost identical to what was happening with my boat. So, is it possible that the camshaft sensor got moved/knocked loose with the impeller replacement and it would be a simple fix? Has anyone else had this happen? Any ideas/thoughts/speculation is welcome. Thanks for your time and consideration.
  6. Hey guys! I have a quick question regarding the cooling system on my '94 echelon. il give you the back story first... So last weekend I bought my first boat, took it for a test drive and everything ran beautifully. I took it home, buffed the hall and tidied up some electrical over that week. The following weekend I took it out for my first time as a new boat owner. She was running a little rough (I realize now I wasn't giving the boat enough throttle/ fuel) Anyways took it for a quick loop to warm it up (about 1-2 minutes) and a alarm started going off, turns out the impeller went and no water was circulating through the system. Temps got to about 230+ before I released. (again new boat owner so this was all new to me). I shut the motor off to let the motor cool down and slowly limped the boat back in in short intervals to let it cool down. When I got back to the house I took most of the cooling system apart (hoses) and found what I think is 98% of the grenaded impeller packed in on the cooled side of the heat exchanger. Well I'm at it i'm going to change out the thermostat as a maintenance routine so I know when it was last done (this is where one of my questions comes in below). So thats the back story of all this. here's the question! - First do you guys thing I should be worried about anything running the motor that hot? (please say no so I can sleep at night) - I changed to the thermostat well replacing the impeller and noticed under the T-stat was bone dry, Should I dump a bucket of water down there to "prime" the system before testing the system? Any other tips/ tricks you might has i'm all ears! Thanks so much for the help!
×
×
  • Create New...