Search found 451 matches

by ndevans
Thu Mar 21, 2019 8:01 am
Forum: Mechanical
Topic: Gearbox woes
Replies: 54
Views: 1489

Re: Gearbox woes

Thanks, I might try alumiweld. Here is the plastic insert:- IMG_20190319_230607~2.jpg The hole it fits in is slightly over 9mm, and the insert is not a tight fit, it was held in place by sealer. I have managed to get a 7mm screw cut to length inside the insert, and a nut behind on the inside. I will...
by ndevans
Wed Mar 20, 2019 10:52 pm
Forum: Off-Topic
Topic: Currently drinking.....
Replies: 0
Views: 25

Currently drinking.....

Thought I'd start a Currently Drinking topic. I've seen one on other forums, I think this one needs one. Mods-if there's already one, then please feel free to delete & point me in the right direction. I'll start. Beer. Black Sheep Golden Sheep Ale. 4.5%. Nice, though I prefer dark sweet beers. Cheers!
by ndevans
Tue Mar 19, 2019 4:20 pm
Forum: Mechanical
Topic: Gearbox woes
Replies: 54
Views: 1489

Re: Gearbox woes

I'm guessing it's not threaded. It seems to be a piece of plastic held in place by what looks like some sort of sealer.
Would a bolt and nut be ok, with suitable washers, or does the hole need to be threaded?

Cheers N
by ndevans
Tue Mar 19, 2019 2:52 pm
Forum: Mechanical
Topic: Gearbox woes
Replies: 54
Views: 1489

Re: Gearbox woes

Hmmm thanks all

How best to plug it up? A short bolt with a copper or fibre washer?
I have no idea whether it leaks, and I don't want to find out by peeing oil all over the motorway!

Cheers N
by ndevans
Mon Mar 18, 2019 11:12 pm
Forum: Mechanical
Topic: Gearbox woes
Replies: 54
Views: 1489

Re: Gearbox woes

A bit of tapping with a slim punch, from both sides of the lock plunger, and on the end, finally worked it free. Took about 1 ½hrs, but I got there. I'd have tried plusgas of that hadn't worked. Does anyone know what this plastic plug in the upper surface of the bellhousing is for? There's nothing s...
by ndevans
Mon Mar 18, 2019 3:46 pm
Forum: Mechanical
Topic: Gearbox woes
Replies: 54
Views: 1489

Re: Gearbox woes

Quick question.

One of the locking plungers in my spare bellhousing has rusted in place. I've soaked it in WD40, and will have a go at removing tonight. If that doesn't work, how do I get it out? Can I risk using heat on an aluminium bellhousing?

Cheers N
by ndevans
Wed Mar 13, 2019 11:36 pm
Forum: Mechanical
Topic: Gearbox woes
Replies: 54
Views: 1489

Re: Gearbox woes

I've started to get the gearbox apart to transfer the innards to the spare bellhousing. So far, I've got the clutch release fork off, and the side cover off, but not started dismantling the gears yet. There's quite a bit of play on the input shaft from the engine-is this normal? If not, what needs r...
by ndevans
Mon Mar 11, 2019 11:27 am
Forum: Mechanical
Topic: Gearbox woes
Replies: 54
Views: 1489

Re: Gearbox woes

My clutch return spring definitely attaches to the backplate. Can't take a photo, it's in bit at the moment.
by ndevans
Mon Mar 11, 2019 10:15 am
Forum: Mechanical
Topic: Gearbox woes
Replies: 54
Views: 1489

Re: Gearbox woes

You might be right about the tab inside the chassis leg. I have a 1098, so mine is the latter version, attaching to the engine backplate.
I wonder if Moss have got their diagram wrong, as the diagram I posted above is out of the BMC Workshop Manual, and is in the section for a Series MM.
by ndevans
Mon Mar 11, 2019 7:48 am
Forum: Mechanical
Topic: Gearbox woes
Replies: 54
Views: 1489

Re: Gearbox woes

This diagram from the BMC Workshop Manual shows the part you are referring to as item 45. It fits, far as I can see, between item 46 and item 37.
IMG_20190311_072747~2.jpg
IMG_20190311_072747~2.jpg (1.27 MiB) Viewed 128 times
by ndevans
Mon Mar 11, 2019 7:05 am
Forum: Mechanical
Topic: Gearbox woes
Replies: 54
Views: 1489

Re: Gearbox woes

Ah, I see.
I *think* it's the clutch pedal return for 803 & 948 cc cars, which explains why I haven't got one. Not sure where it fits.
by ndevans
Sun Mar 10, 2019 1:13 pm
Forum: Mechanical
Topic: Gearbox woes
Replies: 54
Views: 1489

Re: Gearbox woes

With reference to the very helpful moss diagram posted by Phil the Hill where does the pedal return spring, item 40 attach ? It seems to be missing from my 1960 car. The clutch arm spring, item 77 is in place, but isn't strong enough to pull the pedal up against the floor. Cheers John G The clutch ...
by ndevans
Sat Mar 09, 2019 6:54 pm
Forum: Mechanical
Topic: Gearbox woes
Replies: 54
Views: 1489

Re: Gearbox woes

Ok thanks. Haven't changed it since 1990! *Touches wood*
by ndevans
Sat Mar 09, 2019 4:45 pm
Forum: Mechanical
Topic: Gearbox woes
Replies: 54
Views: 1489

Re: Gearbox woes

Nearly there, just got to remove the gearbox cross member, but I need to move the car to get at it properly. Got to remove the speedo cable-how do I do that? Is it just the aluminium knurled end cap that I remove, or the plastic insert that screws into the gearbox? When I remove the aluminium cap, t...
by ndevans
Fri Mar 08, 2019 2:19 pm
Forum: Mechanical
Topic: Gearbox woes
Replies: 54
Views: 1489

Re: Gearbox woes

Whilst it saves the job of clutch shaft alignment, installation of the combined assembly will involve the extra work of dismantling the front radiator panel, with the inherent danger of the threaded trim fixings breaking off, if the front is not already off, think twice about disturbing it. Thanks,...
by ndevans
Fri Mar 08, 2019 10:40 am
Forum: Mechanical
Topic: Gearbox woes
Replies: 54
Views: 1489

Re: Gearbox woes

Ok thanks. I thought so, looks a pain to go through the passenger compartment! I will take it out through the engine bay, the engine is already out.

On a related note, is it easier to get the engine & gearbox back in as one, or gearbox first, then engine?

Cheers N
by ndevans
Thu Mar 07, 2019 11:45 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 23
Views: 808

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

ndevans, The reason your top rings have broken probably has something to do with putting new rings in old bores. I've attached a picture to this post that shows you how the wear ridge in the bore is slightly rounded at the top. Meanwhile the top of the top ring is square. The square top edge is sli...
by ndevans
Thu Mar 07, 2019 10:41 pm
Forum: Mechanical
Topic: Gearbox woes
Replies: 54
Views: 1489

Re: Gearbox woes

Ok good folks, next installment in the saga. The engine is stripped and ready to go for the rebore, so time to get the gearbox out. I've managed to get the gearbox cover off, for the first time ever, or at least since about 1988. Next question-do I remove the gearbox through the engine bay, or throu...
by ndevans
Wed Feb 27, 2019 10:05 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 23
Views: 808

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

Thanks once again for the advice, much appreciated! I'm pretty confident in the main and big end bearings-the crankshaft was reground and new big end and main bearing shells were put in 3 years ago, and having got it apart now, all looks good. The camshaft bearings look good too, no excessive scorin...
by ndevans
Tue Feb 26, 2019 10:59 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 23
Views: 808

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

Ok thanks, noted. I'll get the machine shop to remove and refit the new pistons. A couple more questions! What are the rebore sizes for a Marina 1275? I'm pretty sure the pistons it has in are standard pistons, so what's the next sizes up? If I go for a new camshaft, a 266 as suggested above, is it ...