Mystery Engine

[ffilctar]

Hi.

I have a B series engine with number 18V849F-H466. I cannot find any reference on the web to this number. The date clock on the block has the characters B 4 2. It has twin SU carbs with a tag number AUD445F. According to an SU catalogue this carb was fitted to a Marina TC.

Could the engine be from a TC?

Any information on the engine and its spesification would be very welcome.

Mark Ratcliff

[MarinaCoupe]

Yup it's a Marina Mk2 1800 B series.

The key is the 849 code, the next letter F denotes twin carbs, which also means that it had the standard MGB camshaft.

[ffilctar]

Thanks for you help.
The engine has a distributor Lucas 24D 41288. Would that likely have been original to the engine as well?

[MarinaCoupe]

Sorry, don't know about dizzies.

[david painter]

Early distributors were 25D4 later units 45D4 for more information see www.distributordoctor.com/ What Martin does not know about Lucas distributors is not worth knowing.
Dave

[mickthefitter]

Why is my Mk2 1800 18V355F? Is it because its automatic?

[MarinaCoupe]

Mick, Check it again, could it be ***8*** not a 3.

The 855F differs from the 849F as it should have the anti-run on valve.

[mickthefitter]

Yeah, should have gone to Specsavers - 855. Does that mean I still get the MGB cam?

[MarinaCoupe]

Yup

[locost_bryan]

The engine has a distributor Lucas 24D 41288. Would that likely have been original to the engine as well?

According to this site, 41288 should be a 25D4 from an MGB :-
18V 581/582 (manual) 18V 583 (automatic) Not North America Aug71-Nov73

http://www.mgb-stuff.org.uk/curvestext.htm

[ffilctar]

Thanks. It looks like the whole set up is from a Marina TC. Its currently residing in a '79 MGB, all wrong I know but at least now I know where to look for tuning data.
It doesn't look like I can get a Haynes manual for the Marina from them any more. I don't suppose that one of you could put up a photocopy of the relevant engine tuning data, timing, idle speed etc?