The Dark Wob

1098 head has bigger valves? So a performance enhancement? IIRC the head might need a slight skim to get the compression reasonable.

The Reverend Bluejeans wrote: ↑Tue Aug 27, 2019 7:17 pm Is that 80 or 8G starting the number? 8G is the Goldseal A Series prefix.

8G

8G = Goldseal.

3VOM wrote: ↑Tue Aug 27, 2019 8:14 pm 1098 head has bigger valves? So a performance enhancement? IIRC the head might need a slight skim to get the compression reasonable.

Slightly bigger. Get the CR up to 9.75:1, run it with a 1.5 inch SU on super and it'll fly.

Okay, it has since transpired that the block is a 1098 too. So a complete 1098 engine was fitted at some point. The engine number matches the logbook but the capacity is stated as 948, which threw me. The 1098 was identified only by its casting mark 12A497. I knew the 948 engines had '950' cast into the block, and the 1098 a stamped '1100' plate at the mechanical fuel pump blank, but I didn't pay any attention until recently.
Likewise with the wheels. They always struck me as slightly bigger than normal but I thought nothing of it until I measured them against a standard wheel and discovered they are van wheels.

The '1100' tag was missing in this case. And the absence of the '950' mark gave no clues, so I just went off what it said on the log book.

The 1098 is another good A Series. A 948 crank will go in and you'll have a 998. 1098's also got rid of the pinch bolt small ends.

BL missed a trick with the 1100 engine; it's so incredibly flexible, they should have used that as the basis of the Metro HLE and run even taller gearing - a true 60 mpg on a steady run would have been possible and proper headline stuff in 1980.

fried onions wrote: ↑Fri Aug 30, 2019 10:10 pm Okay, it has since transpired that the block is a 1098 too. So a complete 1098 engine was fitted at some point. The engine number matches the logbook but the capacity is stated as 948, which threw me. The 1098 was identified only by its casting mark 12A497. I knew the 948 engines had '950' cast into the block, and the 1098 a stamped '1100' plate at the mechanical fuel pump blank, but I didn't pay any attention until recently.
Likewise with the wheels. They always struck me as slightly bigger than normal but I thought nothing of it until I measured them against a standard wheel and discovered they are van wheels.

None of this strikes me as being a bad thing.

fried onions wrote: ↑Fri Aug 30, 2019 10:10 pm
Likewise with the wheels. They always struck me as slightly bigger than normal but I thought nothing of it until I measured them against a standard wheel and discovered they are van wheels.

Genuine LCV wheels carry a stamped "L917" on the flat adjacent to the valve hole. There were apparently some after-market Minor rims with the same 4.5J width as well - marked "LP936". Either of these types, particularly the latter, are quite sought after now - many people who bought vans and pickups in recent years haven't realised there are specific wheels for them and are scrabbling to replace the "incorrect" passenger-car wheels they have inherited. LP936s have a greater offset too.

I take it your spare is a standard car rim or does the Traveller have a greater height capacity for storing it? I can't get a 155x14 in my saloon compartment....

None of this strikes me as being a bad thing.

It explains why it can still do this, despite consuming a quart of oil for 70 miles.


You can't kill an A-Series engine (well, unless it's an 803 - ask me how I know). They just wear out.