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  1. K

    Gimbal bearing of u joint noise?

    This job is not as hard as it appears. With the upper gear housing and bellows removed straighten the tabs over the 6 bolts. Disconnect the same things you would do to pull an engine from a car. Remove the 6 bolts and the whole PDS housing comes out with the engine. The bearings and seals...
  2. K

    1986 Mercruiser V-8 5.7L - overheating issue??

    As Lou stated about manifold blockage another thing that happens is the plastic water pocket cover in the upper housing will melt because there is not enough water to put out the exhaust flame. With the lower dropped look to see if the cover is melted. When they melt they leak. Put a length...
  3. K

    Thru hull exhaust

    Try googling, Ace Race parts. They have stainless close mandrel bends a lot cheaper than copper.
  4. K

    Thru hull exhaust

    Sorry no pictures, it was when I had my shop years ago. Basically what it turns out to be is a swing joint. I believe you have 4” exhaust hose, the fittings will be close either way to the hose size.
  5. K

    Repeated impeller failures, help

    The best thing that people n the Donzi site say to do with a Bravo is to plumb a sea suction through the bottom and with a “Y” connection from the drive joining with the through hull before the pump your problems should be over. Greco STH-1000. 1” NPT scoop strainer IBV- 1000. 1”...
  6. K

    1990 Donzi Sweet 16

    The “key hole” cut out is the same. You will just have to drill 2 more holes at the top of the cutout. You will see where to drill with the inner plate.
  7. K

    Thru hull exhaust

    I went to a plumbing supply warehouse and with a sample of the rubber exhaust hose was able to get 4 close 90* copper street els to make the connection. After I had them “clocked” I then silver soldered them together. I also had a boat that was made where the exhaust had to exit further out from...
  8. K

    VIDEO Help: Post Texas Freeze Leak

    Also check with Marine Power in Pontchoula, La. ask for Shawn.
  9. K

    Circulation pump

    They also came with cast iron impellers look in the large opening, if it is stamped steel then it is automotive.
  10. K

    Engine alignment issue

    Nice boat, what brand is it? You might get by if you remove the top nut on the mount, that worked for me a few times. If it is too low then you can shim under the mount on the cross brace. Or just go ahead and have the mount cut and re welded.
  11. K

    Engine alignment issue

    Mercruiser may still make a shorter mount that I have seen. When I had my shop I usually had a cut down mount that I would swap in. There used to be a Galaxy dealer here that would just pound the drive on no matter how bad the alignment was.
  12. K

    89 omc 460 dwell and point gap?

    The dwell is 28-30 like you posted. The best way I found to get the dwell right is to ground the coil wire and with the plugs out spin the engine with the starter while watching the dwell meter. One thing I have always found that if you set the points with a feeler gauge the dwell is always...
  13. K

    Engine alignment issue

    I have had to remove the front mount and have a welding shop cut 1” out of the aluminum lower mount and re weld it to finally get the alignment correct.
  14. K

    Carbed Mercruiser 260 5.7L Missing Above 4000 RPMs

    How about doing a wet compression test on all the cylinders before you start pulling the engine apart. Also the low reading may be caused by a cylinder not firing from a ignition or possibly the carburetor leaking through the float chamber plugs. There are places that specialize in Quadrajet...
  15. K

    Tilt and trim

    The trim limit switch on the models before 76 were designed to last until the boat was out of the warranty. To replace it was a major PITA.
  16. K

    Vp aq125a aq270

    The original Volvo propellers that work the best are the the “elephant ear” style. The flukes are very large and if you see one you will know what I am describing. The 125-151 engines have to turn up to at least 5k which is what they are designed for. If they are over pitched it hurts them.
  17. K

    Volvo penta aq130a stalls and wont restart after warming up

    You said you have the carburetors balanced, does that mean that the throttle blades are sychronized ? If not then you have to be sure that they are. What year is the engine?
  18. K

    Vp aq270

    Volvo started with your design back in 1959 With the 100 model. Simplicity and well engineered. If you manage to remove the shaft and bearing finding a replacement bearing is real easy. You probably could find one at a NAPA store.
  19. K

    Vp aq270

    Back in May 26 I explained what has to be done to get the bearing out. I hope that the shaft is not rusted up in the flex plate. You are going to have to finally give it a try. It appears you are good with the tools so this should not be too difficult.
  20. K

    lower shift cable problem ........

    Another place to look is inside the shift slider. You of course have to pull the shift wire out first then remove the set screw. I have had to use a drill bit to clean out the build up inside.
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