|
|
|
I was looking through the manual for the B18 engine and found that there are three types (1,2 & 3). Doe anybody know how to tell which type is which?
--
'61 PV544 - '65 PV544 - '64 Lincoln Continental
|
|
-
|
|
|
Thanks for your help. It looks like the engine number stamped on the block is either a 16 or 18. With the help of all the other info it looks like I have a 90 hp B18D Ty 1. THANKS!!!
--
'61 PV544 - '65 PV544 - '64 Lincoln Continental
|
|
-
|
|
|
There are indeed three basic versions of B18, but I know them as A, B and D.
A = single carb, "A" cam grind, low compression. This was not sold in the U.S. except in the Duett, but the only engine for European 544s.
B = dual carb, "C" cam grind, high compression. This is the P1800, 1800S and 123GT engine.
C = dual carb, "C" grind cam, low compression. Standard issue in U.S. market 544 Sport and 122S models.
|
|
-
|
|
Now that I've actually looked it up, I'm a bit confused. Here's the way the Volvo manuals lay it out:
My Volvo shop manual for the B18B/D says there were type 1, type 2 and type 3 B18B's, as well as type 1, type 2 and type 3 B18D's. The horsepower ratings on these six engines were 100, 108, 115, 90, 95, and 100 respectively. All these engines had 2 carbs, but with a variety of camshafts (marked 'A', 'B', or 'C') and compression ratios (8.5, 8.7, 9.5 and 10.0), we come up with the various hp ratings. FWIW, the only one of these six engines I don't remember seeing in the US would be the 95 hp version B18D.
And BTW, according to the manuals, the 90 hp (type 1) B18D had an 'A' cam, while the rest of the B18D's (types 2 and 3) used the 'B' cam. As near as I can tell, the 108 hp 1800S would have been the first B18 to use the 'C' camshaft.
Further, there would appear to have been B18A types '1' and '2'. There was a 75 hp version with single carb and 'A' cam, but also one with 85 hp, still using the 'A' camshaft. The only specification difference appears to be a small compression ratio bump.
Oh, my! :-)
--
Gary L - 1971 142E ITB racer, 73 1800ES, 02 S60 T5
BlueBrick Racing
|
|
-
|
|
|
Oh, I see now...
B18B type 1 = B cam, 9.5 CR, single downpipe exhaust manifold, 100 HP
B18B type 2 = C cam, 10:1 CR, single downpipe, 108 HP
B18B type 3 = C cam, 10:1 CR, dual downpipe, 115 HP
The B18D tracks this with the lower set of compression ratios.
|
|
-
|
|
|
Thanks for the information. Is there any way, by looking at the engine, to tell if it's a B18D TY.1, TY2 or TY.3?
--
'61 PV544 - '65 PV544 - '64 Lincoln Continental
|
|
-
|
|
|
"Is there any way, by looking at the engine, to tell if it's a B18D TY.1, TY2 or TY.3?"
I'm thinking you can actually do this... with a little work. :-)
1 - Get the first 6 digits of the engine number from the left side of the block (the first 4 of those 6 digits should be 4968 if it's a B18).
2 - With that info in hand, go to the German Volvo-Classic website, where you will find a list of engine numbers, and the matching engine type and vehicle for each 6 digit number, as originally installed. Also listed is the SAE horsepower rating of each installation, which you will carry to step 3. Note - this chart shows engine "type" as B18A, B18B, or B18D, which is a little confusing at this point, but bear with me...
3 - Using the info in the B18B/D engine shop manual matrix (B18B types 1, 2 or 3 and B18D types 1, 2 or 3 vs horsepower ratings), plug in the engine hp rating obtained in step 2. Voila! Engine type 1, 2, or 3!
One caveat - if you find (in step 2) that your engine was 100 hp, be sure you make note (in step 2) as to B18B vs B18D. There are two distinct 100 hp B18's listed in the B18B/D shop manual matrix... a B18B type 1 used in the early P1800 and a B18D type 3 used in most Amazons.
Of course, when you're all done, the only thing you actually know is the engine type originally associated with your engine block. Obviously, many of these engines have been swapped around and rebuilt/mixed over the past 40 or 45 years.
--
Gary L - 1971 142E ITB racer, 73 1800ES, 02 S60 T5
BlueBrick Racing
|
|
-
|
|
|
I don't know how to tell a type 1 from a type 2 short of measuring the cam or laying eyeballs on the markings on the back end of it. A type 3 has a mounting ear for an alternator -- forward of the generator bracket with a tapped hole in the front -- and another ear on each side for a bellhousing brace (one under the starter motor, and another on the opposite side.
|
|
|
|
|
