Project The Austin 2dr 1100 story - Part IV - Now in sharleys hands

[dozeydustman]

Any gearbox in sump engine will be ruined with a flush agent, I don't think you can even use a more traditional flushing oil on these from what I remember my grandpa telling me about minis etc.

 

If it ain't broken, don't fix it. Unless you're planning to completely rebuilt the gearbox as well, leave well alone.

[SiC]

There is quite a lot of gunk in the bottom and I'm not entirely happy about it staying there.

 

You can see the black sludge in this picture.

 

If that starts moving and getting sucked into the pickup, bad times will be had. I don't think I can manually scrape it out due to access.

 

Unless maybe if I duct tape a hose onto my much abused vacuum cleaner...!

[The Reverend Bluejeans]

NOOOOOOO do not wash the box out unless you plan to strip clean and rebuild, you will wash the shit into the bearings and leave them dry with grit in ready to go rusty in storage and grind nicely when you plan to next use it. Just wipe the sludge out the bottom and leave be. Honestly engine flush in an 1100 engine is just asking for trouble it washes the bearings out and never ends well.

 

 

Eh?

[The Reverend Bluejeans]

if you have a spare hour or two;

 

Remove that horseshoe (four bolts) around the FD pinion. That reveals the locking plate for the layshaft and reverse gear shaft. Remove the oil pick up pipe - it's a push fit into the strainer. Then use a punch to get the layshaft out, catching the thrust washers. Lift the laygear out followed by the strainer. Use petrol and a brush to loosen it up and wipe it all out. 

 

Or just stand the box on it's front and power wash it all out after it's been soaking for an hour. It's just oil sludge. Get the engine back on the box (don't forget the O ring, and use grease to hold it in place), end cover on and add 5 litres of oil. Sorted. 

[SiC]

I'm a bit wary of pulling it apart too much as there is a hell a lot of things in it and I'm not sure I'll be able to keep all the bits where they're supposed to go.

 

I mean just look at it! It's just one mess of cogs in a box.

 

Remember I'm doing this on the garage floor too. Not the best working space for room and cleanliness.

[Guest Hooli]

Slosh some paraffin about and rinse it out. As you say you're not running it. Just rinse it out softly so it doesn't splash the gritty sludge into any bearings.

[SiC]

I don't have any paraffin.

 

Is petrol ok? I've got lots of that.

 

Or paint thinners? Or methylated spirits?

[Guest Hooli]

I'd have thought so. I suggested paraffin as I use it on bike chains so always have it.

 

Once it's dry pour some clean engine oil in the bearings etc to protect it all.

[Noel Tidybeard]

or diseasal

[richardthestag]

i must admit that I am in the "if it aint broke dont fit it" camp

 

the internals look clean enough for me.

[SiC]

Continued cleaning off the gaskets tonight. Didn't get around to trying to clean the gearbox sump in anyway.

 

Did remove the fuel pump though. Noticed that fluid came out of the plunger end when manually pumped. I guess that's something else that needs rebuilding then...

[SiC]

Next question. Where can you get rebuild kits for original SU mechanical fuel pumps? I don't see anything listed on their website.

 

I'll be rather upset if it can't be rebuilt.

[coalnotdole]

Next question. Where can you get rebuild kits for original SU mechanical fuel pumps? I don't see anything listed on their website.

 

I'll be rather upset if it can't be rebuilt.

 

Mechanical fuel pump... AC Delco I'd have thought? not SU.

[Eddie Honda]

Post a pic of the pump to ID the model.

 

I got my AC rebuild stuff from a tractor place...

[somewhatfoolish]

I'd have thought Burlen would be able to sell you everything necessary to degrot the pump.

[Mally]

I very recently gave a set of points to one of us. Been in my loft 30 years.

If only you shouted a little sooner.

 

EDIT

I r confused, I also thought electric.

[richardthestag]

Next question. Where can you get rebuild kits for original SU mechanical fuel pumps? I don't see anything listed on their website.

 

I'll be rather upset if it can't be rebuilt.

 

http://sucarb.co.uk/su-fuel-pumps-spares.html

 

these guys do diaphagms and stuff.

 

1100 is listed as having an electric pump though so i r confuse

[panhard65]

Maybe I missed it but did you check any of the main bearings ? If it has oil pressure problems it will be in the mains rather than the big end bearings. Just check the one furthest from the pump, if thats ok then the rest should be. With the crap in the sump some flush just swilled around in the bottom isn't going to do any harm as you are hardly filling it with the stuff. Just drain it out and chuck a bit of fresh oil at the bearings if you are worried.

[SiC]

Maybe I missed it but did you check any of the main bearings ?

No I didn't. As the big ends were ok I thought the main bearings should be ok. I'll have a look at one of them tonight. Possibly the centre bearing as that's easy to get to without disturbing too much.

[SiC]

This is the fuel pump.

 

Definitely SU branded.

 

Identification tags.

[Noel Tidybeard]

buy a pattern part and swap the internals into SU housing

[Eddie Honda]

1100 is listed as having an electric pump though so i r confuse

The mk1 had an electric pump half in the boot.

[SiC]

The mk1 had an electric pump half in the boot.

This is a povo MK3. They ditched the electric pump and went purely mechanical I believe on the base models.

 

The place where the pump would go in the boot has that bit of the pressing covered. I.e. no hole for the pump back to poke out.

[BeEP]

Electric fuel punps on all Mk1 & Mk2, and early Mkl3 models.  The twin carb variants which hadn't already been culled kept electric pumps until the end of production.  Early mk1 had them under the boot floor on the nearside, then from late 64ish onwards through the boot floor on the offside.

[richardthestag]

This is the fuel pump.

 

Definitely SU branded.

 

Identification tags.

 

 

there is only two things that go wrong with those, diaphragm and non return valves. I would imagine the link I provided earlier will be able to help with those

[richardthestag]

this any good for you?

 

http://autoshite.com/topic/32751-ebay-tat-volume-3/page-4583?do=findComment&comment=1654526

[SiC]

No room to store it unfortunately. Plus I'd feel guilty stripping it for parts rather than restoring it.

[alf892]

I'd not bother rebuilding that pump.......they last pretty well and are probably quite mechanically worn by the time the diaphragm goes..........and then they leak oil.

 

https://www.ebay.co.uk/itm/GENUINE-SU-AUF-714-FUEL-PUMP-MGC-others/362453383551?hash=item5463e7b97f:g:O6EAAOSw899bgSqP

[Exiled_Tat_Gatherer]

Si, Firstly - great work on this…….

Secondly - I'm an idiot - I parked the SAAB in het naughty corner after bouts of exhaust steam OMGHGF anger and forgot the package of carpets and discs, pads etc..... in the boot! I've got them in het house and will send htem over - so sorry for delay. Accept as freebie - for me being an airhead!

 

Get them sent in the coming days - new contract a bit busy...… Sat morning I think will be earliest opportunity

[Squire_Dawson]

Next question. Where can you get rebuild kits for original SU mechanical fuel pumps? I don't see anything listed on their website.

 

I'll be rather upset if it can't be rebuilt.

 

They were not really meant to be rebuilt. If it is working (quick test - press plunger and place finger over inlet pipe, the plunger should hold on the vacuum until you remove your finger). They rarely give trouble and when they do there are no two ways about it. Another thing I'd leave well alone, but that's just me.