1975 Evinrude 25 HP - rope start
Having trouble finding cause of bottom cylinder dropping out under idle or low load - when I throttle up both fire fine and engine runs smoothly at nearly full throttle this is what have I done so far:
1. Found emulsified oil in top cylinder (spark plug...
Decided to start a new thread with this one. I just got my 1975 Evinrude 25 (25503C) running. It came with 1977 starcraft 14 and trailer that I restored (paid $550). I replaced the points and condenser, Cam and key (badly worn key and key slot on cam), complete gearcase reseal (just checked...
Re: 1975 Evinrude 25 compression test results - help needed
I took some photos after coming back from run. Couple items.
1. Looks like two bolts on the exhaust cover are leaking small amounts of water while running - any ideas?
2. The gear case has oily water seeping from two weep holes -...
Just finished getting my 1977 Starcraft 14 all fixed up and had a chance to start the engine. Craig's list buy for $550 so lots of work was needed. The engine is 1975 Evinrude 25 that came with the boat. I got the gear case all resealed (it was full of emulsified oil), new water pump...
Progressing on my 14' Starcraft restoration. After much research I settled on replacing the transom and seats with 3/4 exterior plywood with transom glued together with Loctite PL polyurethane adhesive. All the wood has been coated with two coats of US composites 835 two part epoxy. I had...
Hope to get some advice. I am in the process of restoring a 1975 Starcraft 14 (all the wood was rotten). There are some very minor leaks in the seams and I plan on sealing with Gluvit. The problem is there is a factory (I assume as it was under the paint) sealant that is very difficult to...
I have a 1975 Evinrude 25 I am replacing the impeller and pin. I have a factory service manual and the instructions state to oil the impeller and slide down driveshaft. Can someone familiar with this engine let me know what oil to use and where to apply the oil to the impeller. I assume it...
Re: Gearcase Head Assembly question - 1975 Evinrude 25HP
Here are some photos of the washer. Does look like it was capping off the seal based on the outside diameter. The drive pin was bent so I am replacing the drive pin. I found some minor damage on the end of the gear case as well so it...
Any advice on if it is ok to reuse this gearcase head assembly on my 1975 Evinrude 25? I am doing a complete reseal of gearcase now. I see new ones are very expensive and there a couple of used ones on eBay. This one I have has little radial clearance to the prop shaft so the bushing is in...
Does anyone know if the this kit (Mallory Seal Kit, Gear Housing 9-74105) includes the prop shaft seal. It appears from the photo of the kit to include two larger seals. I do not see the seals as replacement part in service manual for my engine (1975 Evinrude 25 HP extended shaft). Is it...
While resealing my 1975 Evinrude 25 I had to press out the shift link bushing. Looking for a tool to do this and it turns out I had one in the shop an Irwin 88601 Speedbor 12" Bit Extension - worked like a champ. Mine has 3 fluted end - I think the new ones have 1/4 in hex. I got mine long...
