1098 Crankshaft

[Exminiman]

Sorry, I didn't mean to distract with my post re: 1100 A+ Engines, but it's fairly clear, while a little obscure, certainly were made - thanks Luis and Al for confirming - as were 850 engines (in an A Block ) up to about 85 - 86 and fitted to the Metro.

I have posted this up here before, this may help to some degree in finding an 1100 crank. It appears there was at least 4 different 1100 Transverse Cranks made, some were cross drilled (bwaminispeed posted one up here a couple of months back), this chart shows regrind and re-treatment limits as suggested by the Factory



The other 1100 crank that's not on that list is the 12G82, which I think was the thin tail type.

Dont wish to be controversial, but this document mentions “1275 power units”on top RH right hand side, not checked all the cranks but I thought AEG 1392 was a 1275 crank ?

Could it be the 1100 reference is a generic reference to the body shape, 1100 and 1300 being the same ?

[Supersonic]

What we have also found with some of these early 1098cc MG 1100 engines with the cross-drilled crankshaft is that they were fitted with the 88G 229 camshaft. That same camshaft was also fitted to the long-stroke 997 Cooper with one ring and 1/8” cam lobe width. These early engines had excellent torque and made lovely drivable road engines. We used them for Autocross as well.

The later 1098cc MG 1100 engine had the 12G 165 camshaft with two rings and 1/8” cam lobe width.

Alan

[Costafortune]

Could it be the 1100 reference is a generic reference to the body shape, 1100 and 1300 being the same ?

Yes. The 1275 unit not to be fitted to an S was first built in late 1965 for the VdP1100, then the '66 Midget and the twin carb Mark 1 1100 as an option in '67 before the Mark II. From memory, the VdP engine was basically an S unit.

[Costafortune]

What we have also found with some of these early 1098cc MG 1100 engines with the cross-drilled crankshaft is that they were fitted with the 88G 229 camshaft. That same camshaft was also fitted to the long-stroke 997 Cooper with one ring and 1/8” cam lobe width. These early engines had excellent torque and made lovely drivable road engines. We used them for Autocross as well.

The later 1098cc MG 1100 engine had the 12G 165 camshaft with two rings and 1/8” cam lobe width.

Alan

Back in 1974, my Mum's 997 Cooper had such an engine fitted from an MOT failed MG on a 'B' so 1964. It went as well as our 1275GT. It's a much u underrated engine.

[Costafortune]

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Above are the the two Mini Specials I've did work on and both are factory original. Both have A+ engines. BBT 153V has super low mileage and was bought from the Patrick Collection

Alan

A+ type block. You'll find the oil pump mounting holes and the distributor drive are different.

[Spider]

For a brief (and perhaps, obscure) period there was an A+ 1100, in 79 and 80.

I doubt that. I used to service a 1981 Allegro 1100 on an W plate that was most definitely an A Series. These were replaced early '81 by a 998 A+

The A+ was completely different. Everything was changed. BL would not have spent money making an engine they were not fitting to any production cars.
The first car to use an A+ engine was the Morris Ital in mid 1980. The A+ block was however trialled in a handful of cars in 1979-80 including some 998's and therefore very possibly 1100's. They are not A+ engines however.

The Gold Seal replacements 1100 A+ had a Part Nos BKM 1229 and RKM 1151

The A+ went in to production either late 78 or early 79. We started getting them in our 1979 Mokes and there was roughly a 6 month lag between UK production and what we got here at that time.

I think one of the best ways to show the 1100 A+ is from the Distributor Drive Dog



The 12G3560 is the A+ type Drive Dog. It won't fit the earlier blocks. These were fitted from engine number 10H/791AA217000.

Dont wish to be controversial, but this document mentions “1275 power units”on top RH right hand side, not checked all the cranks but I thought AEG 1392 was a 1275 crank ?

Could it be the 1100 reference is a generic reference to the body shape, 1100 and 1300 being the same ?

Hi Mark, I checked on this before posting that up, this was the reference I looked at

[spoon.450]

And I thought the subject of ex works cars was controversial.....

[Costafortune]

The plot thickens!

[Exminiman]

And I thought the subject of ex works cars was controversial.....

Brexit, Covid and global warming dont get any where near 1100 cranks....

[Spider]

The plot thickens!

And I thought the subject of ex works cars was controversial.....

Brexit, Covid and global warming dont get any where near 1100 cranks....

Well,,,,, I never expected the way this thread panned out,,,,,,,

[Exminiman]

The plot thickens!

Brexit, Covid and global warming dont get any where near 1100 cranks....

Well,,,,, I never expected the way this thread panned out,,,,,,,

Well stop making false claims then. Funny how you won't dare show yourself up on this forum Chris, scared of being called out for what you really are? Or just worried you might get banned and then can't keep pretending to be an "Automotive engineer" a course you failed to complete.

Fitting an A+ distributor drive to an A series 1100 block does not make it an A+, regardless of what you beleive.
Show me evidence of a A+ 1100 engine. You know, like all the 998 & 1275 versions.
You won't be able to because they only exist in your mind.

As for the cross drilling of 1100 cranks, thats been answered more than once. My experience of finding a cross drilled 1100 crank has only been in an early Morris 1100 engine, with no fuel pump hole.
Or in RWD 1100 Sprite engines imported to Australia from the USA, along with EN40 steel, nitrided and "S" type main cap studs/nuts. They are quite unique.

Please, just leave the personal stuff outside of the forum.

[goff]

For fook sake !!! will somebody post up a photo of this phantom A+1100 engine so 850Miniman can sleep at night and 850 Miniman please post a photo of those hundreds yes hundreds 1100 cranks that you have
Goff

[Costafortune]

It looks like the 1100 Special, of which only a few were made, was a test bed for the A+. These engines were not in Clubmans or Allegros. It looks like BL used the Special for this purpose so they knew exactly where these engines were. Clever!

[Spider]

For fook sake !!! will somebody post up a photo of this phantom A+1100 engine so 850Miniman can sleep at night
Goff

Goff, his posts have nothing to do with any engines or anything to do with Minis. I've shown this bloke cutesy over the years had his family (when he still had one) and his friends over for lunch, I've helped him out from time to time, while also sending work to the firm where he works. Something crawled up his arse and died, so now he's on a self destruct mission. It's embarrassing to himself and that of the forum. For what ever it's worth, he's mouthing off about what he thinks he knows of me, but the funny thing is, he knows very little about my personal life, what qualifications I have. He's only posting here in the manner that he has, looking for a reaction,,,, you know, like a child would when seeking attention.

[Supersonic]

It looks like the 1100 Special, of which only a few were made, was a test bed for the A+. These engines were not in Clubmans or Allegros. It looks like BL used the Special for this purpose so they knew exactly where these engines were. Clever!

For fook sake !!! will somebody post up a photo of this phantom A+1100 engine so 850Miniman can sleep at night and 850 Miniman please post a photo of those hundreds yes hundreds 1100 cranks that you have
Goff

Totally agree with your thinking Costa, I’ve only ever seen three 1098cc A+ engines and all three are in V registration Mini Specials. All the 1098cc Mini Clubmans and Allegros I’ve seen had Pre-A+ engines. The bloke who owns one of these Mini Specials has two 1098cc Mini Clubmans which are younger than the Mini Special and both have Pre-A+ units. I’ve never had to split any of the three 1098cc A+ units so can’t help Goff with a photograph

Alan

[Supersonic]

Chris, I said above, I only seen the 1098cc A+ engine in V registration Mini Specials. The GB suffix registration numbers with V as the last letter designates the years as 1 August 1979 to 31 July 1980.

Alan

[Costafortune]

Well, I spoke to a mate who had a 1980 W plate 1100 Clubman 30 years ago - and he says that had an A+ 1100 engine as well.

[850man]

For fook sake !!! will somebody post up a photo of this phantom A+1100 engine so 850Miniman can sleep at night
Goff

Goff, his posts have nothing to do with any engines or anything to do with Minis. I've shown this bloke cutesy over the years had his family (when he still had one) and his friends over for lunch, I've helped him out from time to time, while also sending work to the firm where he works. Something crawled up his arse and died, so now he's on a self destruct mission. It's embarrassing to himself and that of the forum. For what ever it's worth, he's mouthing off about what he thinks he knows of me, but the funny thing is, he knows very little about my personal life, what qualifications I have. He's only posting here in the manner that he has, looking for a reaction,,,, you know, like a child would when seeking attention.

Oh Chris, you make me laugh.
I will let this go now, out of respect for Mark and the educated and qualified Mini experts on this forum.

But remember, I will always be here reading and waiting for the next load of BS to come from you, and will continue to keep you accountable. Much like you believed you were doing to Graham Russell on the Ausmini forum here in Australia, before you were Banned.
And remember, I am good friends with Alex, your son. Remember him? He doesn't care for you much anymore either. I believe you even got yourself laughed out of the engine builders forum that he added you too because of your comments around heating connecting rod little ends. Those blokes chewed you up and spat you out, because of your ineptitude. So remember, I know plenty about what you do and what qualifications you don't have.
I will go back to restoring Minis now, you go back to pulling cables.

[Supersonic]

Well, I spoke to a mate who had a 1980 W plate 1100 Clubman 30 years ago - and he says that had an A+ 1100 engine as well.

Costa, I don’t doubt that a Mini Clubman had a 1098cc A+ engine fitted at some stage. I remember an old lady neighbour bought a 998cc Austin Allegro in Teal Blue. Loads of people don’t believe the made a base level 998cc Allegro. It was about a 1974 / 1975 Allegro, and Pre-A+ 100%

Has anyone else seen a factory 998cc Allegro?

Alan

[Costafortune]

Yes, a Y plate one in Cinnabar red. They weren't a bad car in the end.