Search found 563 matches

by ndevans
Mon Jun 17, 2019 9:26 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

Ah well, it may be original then, the engine serial number dates it to around 1978. I've squirted some oil in there.
The gearbox 1st motion shaft is polished nicely, after 3000 miles in the engine before I lifted it, but not what I'd call worn.
by ndevans
Mon Jun 17, 2019 8:06 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

It's an ex-Marina engine, but it didn't come straight out of a Marina. I bought it second hand-maybe it's been used in a Minor or Midget before?
by ndevans
Sun Jun 16, 2019 10:30 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

I think what you're seeing at the back is inside the crankshaft flange. Using a bent paperclip, I've measured the distance from the face of the flywheel to the inside edge of the bush in the flange as ~50mm. That's pretty much twice the thickness of the flywheel. I think the adapter in the flywheel ...
by ndevans
Sun Jun 16, 2019 7:42 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

Measured as best as I could, the i/d of the crankshaft flange would seem to be a shade over 1/2". You can just see the inner behind the flywheel in the lower photo. The inside bore of the actual adapter is a shade under 3/4". Haven't measured the 1st motion shaft on the gearbox yet, but it looks lik...
by ndevans
Sun Jun 16, 2019 4:48 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

Ah, is it part no. 38 in the diagram below, listed as Bush-drive gear?

If so, it has not been present on this engine, or the 1098 that preceded it, since at least 1998, if not longer.

Is it the oolite or needle roller bush I need?

Cheers N
IMG_20190616_164541~2.jpg
IMG_20190616_164541~2.jpg (1.61 MiB) Viewed 56 times
by ndevans
Sun Jun 16, 2019 4:24 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

Oolite bush? Not sure what that is! The crankshaft flange is the original Marina item, unmodified. There's nothing else on or in it. Can't take it apart now, but I'll see if I have any other photos. The flywheel is an exchange modified one from ESM, drilled for 6 bolts. The original Marina flywheel ...
by ndevans
Sun Jun 16, 2019 3:48 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

Is this the adapter? The centre boss?
IMG_20190616_153613~2.jpg
IMG_20190616_153613~2.jpg (762.76 KiB) Viewed 75 times
by ndevans
Sun Jun 16, 2019 11:47 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

There isn't an adapter, it's a Minor flywheel drilled for the 6 bolt Marina crank, exchange from ESM. Should there be an adapter? On the subject of flywheels, the Minor manual says the 1/4 mark on the flywheel should be aligned with the crankshaft throws of no 1 & 4 cyl. I can't do this, because the...
by ndevans
Sun Jun 16, 2019 10:49 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

I improvised.....
IMG_20190616_104820~2.jpg
IMG_20190616_104820~2.jpg (1.01 MiB) Viewed 97 times
by ndevans
Sun Jun 16, 2019 8:26 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

Should have thought about order of operations! A block of wood between the crank and crankcase would have easily prevented the crank turning, while tightening the bolts! Flywheel fitted before sump is the sensible way to reduce effort. I’ve also seen so many who don’t think of the moments incurred ...
by ndevans
Sat Jun 15, 2019 10:56 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

Got the sump, timing cover, backplate and head on now. Got the flywheel on as well, but having a job tightening up the bolts to 40lbft without the crankshaft turning.
by ndevans
Fri Jun 14, 2019 12:15 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

Thanks Phil, I'll see if I can source a socket locally.

I got the nut off with a spanner, which is how I did it up after the last rebuild. It's lasted 2 yrs like that, and with the washer tab bent up, it's not going anywhere.

If you're at the National, I owe you a beer!

Cheers N
by ndevans
Thu Jun 13, 2019 10:45 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

Ok, good progress. Timing chain back on, alignment checked as suggested, 1 extra shim added. Couple of questions. The camshaft nut is listed as 65lb-ft, but I don't have a suitable size socket. Will I get away with good and tight with a spanner, and do I bend the washer to lock the nut? Cheers N IMG...
by ndevans
Wed Jun 12, 2019 10:56 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

Managed to drill it myself, the machine shop can't do it until next week. Couldn't quite get to 16mm, my 15mm drill is bent, but I did manage 12mm. That gives enough adjustment for now. I've also found the tensioner bracket that came with the new pad that I bought, which doesn't have an oversize hol...
by ndevans
Tue Jun 11, 2019 11:31 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

I thought I had it somewhere, I managed to find the Marina engine front plate, so I have bolted it to the Minor front plate, and will get it drilled in a local machine shop tomorrow. The reason why I've not had it done up to now is because I drilled out the mounting bracket of the tensioner so that ...
by ndevans
Tue Jun 11, 2019 11:11 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

I've just had the Minor front plate drilled for the extra cover bolt hole. I'll have to get a machine shop to drill the tensioner hole, I don't have a bench drill, and I'd rather not do something that size with a hand held power drill. Do you know what size it needs to be? I don't have the Marina fr...
by ndevans
Tue Jun 11, 2019 9:26 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

Thanks Phil. Do I need to re-torque the big ends and main bearings, or will they be ok at 40 & 70lbft?

The timing chain is a simplex with tensioner.

Cheers Neil
by ndevans
Mon Jun 10, 2019 11:16 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

Coming along nicely now, I managed to get the big ends and main bearings torqued up in minutes this evening. With the engine on the floor that would have been a battle to stop the engine turning. The stand has been worth it already. On the subject of torques-what figure should I use for the big ends...
by ndevans
Mon Jun 10, 2019 12:27 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

Thanks for the tips. Rebuilding can now be done off the floor! Not promising I won't have a few more questions though! Out of interest, I put the block with camshaft, pistons, con rods and crankshaft on the scales-it is 55kg in that form. The head is another 14kg without rocker cover, and the flywhe...
by ndevans
Sun Jun 09, 2019 5:55 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 142
Views: 2991

Re: Engine in bits for a rebore-anything else worth doing?

Job done! What do you use to attach the hoist to the engine? I used rope wrapped around the block. For putting the engine in the car, I will have the head on and use the lifting eyes on the rocker bolts. I've used rope in the past, but should I use some chain? Should I get a load leveller? IMG_20190...