B230FT My First Rebuild

[Wolfie]

thanks, some times i feel like man... WTF am i doing... i have a couple of other surprises aswell, but i'm saveing them till every thing is put back togather and i get to take a test drive =)

[stillspoolin]

are you using the block with an oval bore? or did you get it sleeved?

[Wolfie]

It's Sleeved... and i'm not happy about it.... infact because they damaged the squirtern the morning i'm sending the bill to the shop for the squirter to see if they plan on paying for that aswell

[Wolfie]

The big hose that atatches inside the engine for the breather box, by the oil pump whats that called agin?

[Wolfie]

I'm going to edit all my posts togather and finish this off, long story short, i got 1100 miles away from my former home and threw a rod, I was however able to Drive it up on the car hauler , where he dumped it off at a gas station, till i could rent a moveing truck and car hauler trailer, i got about 300 miles from where i was moveing to, and the wheels fell off the car hauler trailer. Uhg, any body in Wa, or oregon have have a b230FT block,,, with squirters for sale? or for free?

[Creatured]

Bummer about the rod throw.
So did ya ever get the car working
how you wanted it to work?
Do they use salt on the roads in Alaska?

[mels]

Originally Posted by Creatured

Bummer about the rod throw.
So did ya ever get the car working
how you wanted it to work?
Do they use salt on the roads in Alaska?

Man, that dude "Wolfie" hasn't been back here since April 2011.

[will740turbo]

Originally Posted by HansW

Hi
Just typed it out -- makes for better readability:

Engine Specifications B 230 Ft

Cylinder head
Warp-limit acceptable for use:
Lengthwise: 0.50 mm
Across: 0.25 mm
Warp limit acceptable for refinishing;
Lengthwise: 1,00 mm
Across ; 0.50 mm
Height:
New: 146,1 mm
Minimum after refinishing: 145.6 mm

Inlet Valves
Head diameter: 44mm
Stem diameter:
New: 7,955 to 7,970 mm
Wear limit: 7,935 mm
Valve head angle: 44deg 30’

Exhaust valves
Head diameter: 35 mm
Stem diameter
New: 7,945 – 7,965 mm
Wear limit: 7,925 mm

Valve seats inserts:
Diameter (standard)
Inlet: 46 mm
Exhaust: 38 mm
Oversizes available: +0,25 and +0,50 mm
Valve seat angle: 45 deg

Valve guides
Length: 52 mm
Internal diameter: 8,000 – 8, 022 mm
Height above cylinder head:
Inlet: 15,4 to 15,6 mm
Exhaust: 17,9 - 18,1 mm
Stem to guide clearance
New: ( inlet) 0,030 – 0,060 mm
New ( exhaust ): 0,060 – 0,090 mm
Wear limit (inlet and exhaust) 0,15 mm
Fit in head: interference
External oversizes available 3

Valve springs
Diameter: 25.9 mm
Free length: 45,5 mm
Length under load:
280 to 320 N 38,00mm
702 – 782 N 27,5 mm

Cylinder bores
Standard size:
C: 96,00 – 96,01 mm
D: 96,01 – 96,02 mm
E: 96,02 – 96,03 mm
G: 96,04 – 96,05 mm
First oversize: 96,30 mm
Second oversize: 96,60 mm
Wear limit: 0,1 mm

Pistons
Height: 64,7 mm
Weight variation in same engine: 16 gram max.
Running clearance in bore 0,01 – 0,03 mm

Piston rings
Clearance in groove
Top compression: 0,060 – 0,092 mm
Second compression: 0,040 – 0,072 mm
Oil control: 0,030 – 0,065 mm
End gap:
Compression rings: 0,30 – 0,55 mm
Oil ring: 0,30 – 0,60 mm

Gudgeons pins
Diameter standard: 23,00 mm
Oversize available: + 0,05 mm
Fit in rod: light thumb pressure
Fit in piston: firm thumb pressure

Auxiliary shaft
Bearing journal diameter
Front: 46,975 – 47,000 mm
Centre: 43,025 – 43,050 mm
Rear: 42,925 – 42,950 mm
Bearing running clearance: 0,020 – 0,075 mm
End float: 0,20 mm – 0,46 mm

Crankshaft
Run out: max. 0,04 mm
End float: 0,080 – 0,270 mm
Main bearing journal diameter:
Standard: 63,00 mm
First undersize: 62,75 mm
Second undersize: 62,50 mm
Main bearing running clearance: 0,024 – 0,072 mm
Main bearing out of round: 0,006 mm max.
Main bearing taper: 0,006 mm max.
Connecting rod bearing journal diameter:
Standard: 49,00 mm
First undersize: 48,75 mm
Second undersize: 48,50 mm
Connecting rod bearing running clearance: 0,023 – 0,067 mm
Connecting rod bearing out of round: 0,1mm max.
Connecting rod taper: 0,01 mm max.

Connecting rods
Length between centres: 152 mm
Endfloat in crankshaft: 0,25 – 0,45 mm
Weight variation in same engine: 20 gram max.

I don't even know if you're still on the forum at all, but this is FANTASTIC info. All the links are broken, all the photos are gone, and K-jet.org is no more. In fact, I think the site owner may have died based on his last few posts :( Hopefully he isn't.

I just ordered a paper copy of the engine refurb manual off ebay for $13.

I'm trying to find limits for the cam journals.

[Mbeas96]

Yes, thank you for this.