Depends how much you pay for a block. You should be able to get an empty b18 block for £100 or a complete one for £200 or so.
Not the cheapest thing to get done as its not very common. It may be cheaper and easier to get a different block to be honest however if you are going to get it done, make sure you get a good machine shop on the case.
What was wrong with your motor? I can only assume it was crank related that failed.
Buying another block would be more expensive than line boring.
Any reputable engine builder can do this or have it done no problem.
Murray
Depends how much you pay for a block. You should be able to get an empty b18 block for £100 or a complete one for £200 or so.
With the possibility of that block needing done aswell.....
yeah thats a fair point but its unlikely. I think most of this is largely irrelevant anyway without actually knowing what the problem was in the first place lol.
Don't bother, depending on how aggressive the line hone will be will determine whether or not you can use Honda's bearing systerm. Its something i wouldnt recommend, but other's may say different. How much is it out by ? Did you spin the crank by hand when you assembled the engine previously ? If it spun freely it would'nt of needed line honing.
BTW, did you fit a oil pressure gauge ? if so what was your oil pressure when the engine was built and when it failed ? Come to think about it i don't think you would of made it to the ferry let alone Germany if your mains were out of line...
Car sounded too smooth before hand for it to be out of line!
Really think it was the temps that killed the motor, even running my heaters blazing and with a full width koyo i saw almost 120 degrees and thats with my manifold wrapped and other cooling aids
Your car must have been running AT LEAST 140/150 degrees oil temps with the heaters set full cold / half width oem radiator and doing a couple laps at a time
Guess all we can do is speculate though
Did the oil pump fail again from swarf off the spun bearing or was it due to more leftover swarf from the engine machine work do you know??
That could of been the problem as the oil would of started to brake down. What oil was you using ? You would of needed at least a 10w 50 for those temps. What bearing clearences were you running to ?
Just had my camper van engine rebore to .5 over size cost my £100 +vat
Car sounded too smooth before hand for it to be out of line!
Really think it was the temps that killed the motor, even running my heaters blazing and with a full width koyo i saw almost 120 degrees and thats with my manifold wrapped and other cooling aids
Your car must have been running AT LEAST 140/150 degrees oil temps with the heaters set full cold / half width oem radiator and doing a couple laps at a time
Guess all we can do is speculate though
Did the oil pump fail again from swarf off the spun bearing or was it due to more leftover swarf from the engine machine work do you know??
Try running the clearences a bit looser next time to provide extra cooling for the journals. .0017 for the mains and rods will be better if you going to be driving like a nutter... he,he
Its not that they were out of line, some are out of round! Pinched on the sides and a bit loose on the upper and lower.. Slightly egg shaped. The engineer seems to think they could of been like this beforehand which could of caused an extra bit of stress on the bearings at a zillion RPM!!
The line boring process involves taking a tiny amount off of the cap face which makes the bore slightly smaller then honing it out to OEM specs, quite clever and if done well could potentially be better than OEM!?
A good oil cooler setup would be more than good enough, more oil capacity and better oil and water temps.
I wish i had done this when i boosted my honda a couple years back.
You have to take material of both surfaces so you can hone the journals round again, or you would have to hone the cap to suit the block.
Murray
But high oil pressure doesnt really save engine. You want "good flow" and enough pressure to produce a hydo film. .0017 won't drop the oil pressure much really, i know people that have run looser than than on boosted setups (with stock unmodified oil pumps). Remember Honda's tend to run really high oil pressure as it is