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  1. S

    Cold Fouling of Spark Plugs Weber 4 Barrel Carb

    Here are some pictures of my carb, taken this morning. Three of them show the carb cold, with the choke closed. I took pictures from the top and down both sides but I can't find anything like the helix cover shown above. I also took one picture of the carb with the engine running at 160F, so you...
  2. S

    Cold Fouling of Spark Plugs Weber 4 Barrel Carb

    One of my engines has black deposits on the plugs. I suspect rich fuel mixture so I have been looking at the choke today. I followed the manual and checked the operation of the vacuum diaphragm and made some adjustments to the choke pull off, bending the linkage to set it at 15/64 in. I also...
  3. S

    Impeller Problem? Alpha 1 gen 2

    Back on the Settimo Velo getting ready for sea trials at last! However, My counter rotating drive isn't picking up cooling water from the flush muffs following the service I did. Nothing getting through to the engine. Standard rotation drive is fine, so I got that right! The manual calls for the...
  4. S

    Cut Out Switch

    I've just been through the installation manual and set up the shift cables, making sure the shift cut out switch remains centred - as per the instructions in the installation manual - when shifting into and out of forward and reverse. I was expecting the shift cut out to be activated by shifting...
  5. S

    Power Trim Fluid

    One of my new power trim units wants topping up. I guess it has Quicksilver power trim and steering fluid in - it is a yellow / orange colour - as supplied by Mercruiser. I don't have any of the Quicksilver product to hand but see that the owners manual says that SAE 10W-30 can be used as an...
  6. S

    Sterndrive electrolysis and antifouling

    I'd like to antifoul my Alpha sterndrives which are fitted with stainless props and protected by the Mercathode system. The boat will be used in a high fouling area and kept afloat for extended periods, so it is not going to be realistic to leave the drives untreated. Mercruiser recommend...
  7. S

    Problem Fitting Mercathode Electrodes

    I'm having a problem fitting Mercathode electrodes on the underside of my gimbal housings. I made up a trace wire, as described in the service manual, to guide the electrode leads through the rubber grommet in the centre of the hydraulic connector block. However. I cannot get the trace wire...
  8. S

    Used Alpha drives: What to look for?

    Well, I bought the drives yesterday at a massive discount as the cavitation plate on the standard rotation unit had suffered some boat yard damage: Apart from that they seem to be OK ... nice clean oil (whatever oil they have in them!) and gears. The 12:00 / 9:00 shift seems to work...
  9. S

    Used Alpha drives: What to look for?

    I'm going to look at a used pair of Alpha 1 Gen 2 drives, fitted with stainless props. They are no longer installed in the boat, so I cannot test them running. I am told that they are about 10 years old with around 300 hours on them. What are the main things that you would look for to assess...
  10. S

    Transom shift cable routing

    The shift cable comes out of the left hand side of the transom and I am wondering whether to route it up between the bellhousing and transom on the left hand side of the engine, or to loop it under the bellhousing and bring it up on the right hand side. Does it matter? Is there a best practice?
  11. S

    Engine Alignment

    I bought myself an alignment tool on eBay http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=370503133199&ssPageName=STRK:MEWNX:IT which I've been using to fit twin V6s in my Settimo Velo. This is not an OEM tool but I hope it is fit for purpose as they have good feedback ... I've fitted...
  12. S

    Core Plugs

    Job done! ... I found 5 steel core plugs that I have now replaced with brass. Fortunately the 2 behind the flywheel were found to be brass, so that saved some time. Interestingly the 5 steel ones all looked to be in servicable condition, free from any signs of corossion. Maybe the block has not...
  13. S

    Gantry hoist or crane for engine installation?

    In the end I built this: I took kghost's idea of A frames, which I doubled up and built out of 2" x 4". I then built twin I beams out of 1" and 3/4" ply. I mounted these on top of the A frames, in parallel. I then built a trolley car to run in a track, on top of the I beams, on 4"...
  14. S

    Securing front engine mounts to bearers.

    My Settimo Velo has 3 inch wide solid wood engine bearers. In the previous (remote v drive) installation the engines were secured to these using a kind of steel saddle. This was held in place with horizontal bolts through the engine bearers and had a couple of nut plates let into the top for the...
  15. S

    Core Plugs

    What material are Mercruiser core plugs made from? Of my twin 1993-95 manufactured V6 engines, one has all brass core plugs and the other has one brass (which looks new) and three of what appear to be galvanised steel (as they are magnetic). They all appear to be in good condtion. Did...
  16. S

    Transom Assembly Sterndrive Shaft Seal

    I am wondering if I have a part missing from one of my transom assemblies ... S/No 1A174836 has what appears to be a rubber seal - for the sterndrive shaft - fitted on the inside of the gimbal bearing, whereas S/No 1A196092 does not. I have looked at a workshop manual and a parts list and they...
  17. S

    Power steering hoses

    I solved the problem of the missing fitting on the high pressure hose as I was given a complete high pressure hose assembly for free (must've been my birthday)! I am now concerned about the fitting on my low pressure hose (shown in the left of the picture). I tried this in the power steering...
  18. S

    Gantry hoist or crane for engine installation?

    I am thinking about the best way to get my 2 V6s into the boat. The aft deck is about 6 foot off the ground and the boat is on stands, so I am either going to need a crane with operator or to build a gantry over the boat. I will probably need to take them in and out a few times, as I can see...
  19. S

    Alternative to Mercruiser remote oil filter kit

    I am thinking about fitting remote oil filters on my twin LXV6s (93 - 95) as the filters are going to be difficult, although not impossible, to get at when the engines are installed. The Mercruiser kit seems quite expensive to buy new, compared with possible alternatives such as...
  20. S

    Dua Power Trim

    I'm just starting to look at wiring up my power trim for two drives. I have a Quicksilver dual throttle control, which has the two trim switches built into one of the throttle levers. I have identified the 5 wires relating to port up / down, stbd. up / down and common. However, these wires are...
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