Saving Old Seagulls

Jeremy did your database produce any any approximate dates for the water pump housing to drive shaft fitting , the drive shaft tube to crankcase fitting & the engine support lug style changes.

The majority of pre 1975 chrome plated Seagull driveshaft tubes are 1 1/8" diameter, anyone with a lathe & the correct screw cutting tips can cut the thread, are they knurled at the crankcase end, it's a long time since I worked on one? On an ornamental basis making one from a chrome driveshaft tube...

Adrian/Jeremy I had some new steel gaskets made for the FV's, do you want me to have a look to see if I have any left?

I also had some FV bobbin style thrust blocks made.

Charles

You should have mention of F1082 somewhere in your notes, we discussed it several years ago, when it was living at my house for a few weeks, during it's delivery to Dorset. I wanted to cross that one off my list of models I'd not checked out the inside of, but the owner forbade my assault with the B...

That's a very impressive piece of work, H-A !!!!!

These rods were conceived under the supervision of Max Nightingale at Alpha who sadly is no longer with us.

He did all the balance sums, I only tested to about 6500, as the revs increased it got smoother.

Both fit a 13mm wrist pin, though it does have much smaller chamfers to increase the load bearing area.

Can't get much past you Kiwis!

DSCF0140.JPG Your in luck Andrew I found a picture of one I remanufactured years ago. The one with the bronze big end is mine the ally big end was the last new Seagull one. Remember if you make any mistakes in the specs it's your fault & you still have to pay! I do have some unmachined 170 rod cast...

We've had several conversations amongst the more mechanical members of the register on this subject. There are 2 schools of thought, the first which is something similar to your suggestion but could well with all the machining fixtures, cad work, casting patterns & machining time, end up with a fini...

I built a Curlew with a 5R crankcase & a welded on tiller arm stud using a needle Kingfisher crank & 6202 5/8" bearings, I used Loctite bearing retainer to stop the crank rotating in the inner bearing sleeves & destroying itself, I had hell of a job pushing the sides apart, I even had to put spacers...

Just a quick question, how do you remove the crank from your hybrid?

The reason I built the puller device was to avoid people damaging the crank whilst removing the flywheel. Take a look at your needle cranks, they are basically a standard silver century crank with the big end portion removed, then 2 circa 14mm diameter holes are then machined into it 20mm away from ...

Salt water use & lack of TLC is the most common cause of death on later model Seagulls. Your water jacket looks pretty good & unless there are rust flakes about to fall off I wouldn't clean it too much, clean bare cast iron & salt water is only a superfood for oxidation, I'd give a poke everywhere w...

IMG_5803 (5).jpg Here's a picture of the drill guide /puller tool that I use for Wypac CDI flywheels on motors. In it you will see 6 holes 60 degrees apart & a crankshaft sized hole in the middle, 3 of the holes 120 degrees apart are 1 @ 4.8 mm diameter & 2 x 4 mm the other 3 holes 60 degrees away ...

Why not ask yourself the following questions. How much & where am I planning to use this Seagull, On a scale of 1 to 10 how bad is the cylinder corrosion, Are there any Bermudian cranks left & will one fit straight in your crankcase, Does the crankshaft freely rotate when back in the crankcase, Were...