Search results

  1. O

    1981 Mariner 25 HP - Repair cylinder Block Cooling passage (with Techno Weld?)

    Re: 1981 Mariner 25 HP - Repair cylinder Block Cooling passage (with Techno Weld?) Well, your right, if it doesnt work it doesnt work. However, here is some pictures... Im pretty sure this is a lost cause, but always great with a second opinion. <-- Cracks in cast <- Small chip in the cast...
  2. O

    1981 Mariner 25 HP - Repair cylinder Block Cooling passage (with Techno Weld?)

    Hi! I just pulled out the block on my 25 HP Mariner (695 model, made by Yamaha) and I've found out that there have been some corrosion on the engineblock at the cooling channel next to one of the cylinders. A little bit of the head block is missing right next to the top cylinder. Im wondering...
  3. O

    Mariner 25 HP - Bad compression (under 50psi), bad piston rings?

    Hi I bought a 25 HP Mariner from 1982 (25E, model: 695) a year ago as a spare engine. The seller said that it run bad and that is has low comp one cylinder. I did a dry compression test on the sparkplugs and both cylinder gave me about 50psi. With a bit of oil in the cylinders this bumped up...
  4. O

    Mariner 28 HP vs 30 HP ? - Whats the difference ?

    Hi! I have a late 70's Mariner 28 HP (same as the Yamaha 28 HP). Since there are both 25 HP and 30 HP around Im wondering what the difference between a 28 HP and a 30 HP would be? Mine is a 2-cylider version. Anyone has any idea why they made a 28 and a 30? Difference in torq?
  5. O

    Mariner 28 HP (28 ML) 1976 - What is the minimum cylinder compression?

    Hi I have a Mariner 28 HP (28 ML) from 1976. I've been trying to locate a service manual (no luck yet) to download. Meanwhile Im going to do a compression test on the engine. Does anyone know what minimum compression rate these engine should have? These engine are the same as the Yamaha 25B...
  6. O

    Mariner 28 HP (1976) - What should I change and where to get it?

    Hi I have recently bought a Mariner 28 HP from 1976 (664-35xxx) outboard engine (also called 28 ML?) This engine is in need of a new impeller, oil filter and oil seal. Maby also a new fuel pump gasket? Do anyone know the part number for these? Also if anyone know something else I should change...
  7. O

    Chrysler 5 hp (52ha) impeller - six or ten blades??

    Hi Im changing impeller on my 5 hp (52ha) chrysler from 1970. The impeller my dealer have sent me has 6 blades (6 vane impeller) and the one that is in the engine right now is a 10 vane impeller. Ive checked maxrules and for the 5 hp model from 1976 it says 6. But this is a 1970, and ive also...
  8. O

    Chrysler 5 HP (52HA) - How to remove Lower Unit?

    Hey Having problem removing lower unit on my Chrysler 5 HP outboard engine. I've followed the service manual (see link), and I have removed both the hex-head screws (four) and the gear shift rod screw, but the Lower unit won't slide out. I've tried to hammer on the edges aswell, but it seems...
  9. O

    Chrysler 5 hp 1970 (52ha) - how many hp?

    Hello! I know that the topic sound stupid. You will all say,"-its a 5 hp.." But i've done some research and found out that this egine has the same disp (8,99) as the 6 hp model. At the same time i found a guy looking for a carb (model md145a) for his Chrysler 7 hp and it has a bigger disp (cc)...
Top