I would check the bores Ady Sounds like your got a bit of a job on your hands. I may have a crank but not sure what its out off. Might be best to get a full Crank with bearing shells etc. Give me a shout if you need anything.
I'll be checking everything over while it's apart. Found my spare crank in the garage this morming. it will be getting a regrind and crack test before it goes in. the block might also get crack tested. The way that the crank has failed has pushed against both ends of the block from the inside so could have split something that is not meant to be streched.
I spent the afternoon taking the bottom end apart.
The crank from the from my original 700 engine won't fit. It has much smaller main bearings at 45 mm instead on the 50mm ones in the 850.
The only wear to be found was in the big end bearing of number 1 piston and to a much lesser extent the big end bearing of number 3 piston.
There was, is misalignment between the oil way to number 1 main bearing and the oil way in the bearing shell. Oil is feas on from here through the oil way in the crank, to number 1 big end bearing. So number one big end bearing wasn't recieving enough oil.
The oilway from number two main bearing, feeds both the big end bearing for number 2 piston and number 3 piston. But the oilways in the crank were not properly aligned. much more of the oil would have been going to number 2 than 3.
Thanks for the offer Dave, I picked up an engine to strip for parts last week, so I should be sorted for bits now.
I've taken the crank out of the spare engine and that looks good, on first inspection. That should be all that I need from there. I still have the top end of my old engine to strip dowm and check and then need to take the crank and flywheel to be grouned and balanced. No rush at the moment as I have all winter to do it.
I've been looking at my stainless steel exhaust manifold. I think I'll make some improvements to this so it fits a little better and then get it ceramic coated. The one that is on there was made in a rush and isn't as neat as it could be. The ceramic coating is a great thermal barrier to keep the engine bay temps a bit lower and hasn't got the problems with trapping water, falling off or ichiness that fiberglass wrapping has.
Norman Burgess: Any body help me please, want a carb for myBug got a regal 850 engine. Any advise would be appreciated.
Sept 28, 2020 15:29:59 GMT
Stiffy: There was one on ebay last week.
Sept 29, 2020 10:14:53 GMT
freewheeler: Afternoon All. I'm new to this forum so I hope I'm not breaking any rules. Looking to sell my purpose built Bug trailer if any one's interested? Good condition, could do with new tyres. Located in Great Missenden, Bucks. Hoping to avoid the dreaded Ebay...
Oct 27, 2020 14:15:10 GMT
69xke : I'm Looking for a Bug to buy - Need Web site suggestions - firstname.lastname@example.org
Nov 4, 2020 4:34:20 GMT
Bugsaloud: Hello 69xke Whats your budget are you after a box of bits or a tatty runner / something decent or a Concourse showing bug and are you prepared to travel ?
Nov 9, 2020 12:14:17 GMT
BugEater: I don't want to compete with 69xke but I'm after a tatty runner or off the road, that I can can rescue. I want to put the work into it, wouldn't want something already done.
Nov 18, 2020 11:34:59 GMT
adl2: cdb15, that's just such a shame that someone let it get into that state. I know that's more than I could cope with but I admit I am slightly tempted. For the VIN, it would end up as a Trigger's broom of a restoration.
Nov 25, 2020 22:26:43 GMT
burlmeister: Trouble fitting new 6052 fan belt. Alternator adjusted to the max. Belt is on the engine and alt pulleys but I just cannot get it to stretch over the lip of the fan pulley. Is there a trick to this? Driving me nuts!
Nov 26, 2020 11:09:57 GMT
adl2: That barn find Bug as linked by cdb15 is now bid to over a grand. Or should I say, that V5 doc for a Bug is up to over a grand.
Nov 29, 2020 10:14:12 GMT
Stiffy: Hi Folks.. a lot of questions go unanswered if you put them in the shout box. Its more visible to all if you create a thread. Most questions get answered within hours. :-)
Nov 30, 2020 16:52:59 GMT
adl2: Gone for £1220 in the end.
Dec 1, 2020 13:36:48 GMT
Looking for bug to buy: Hi all, had to sell my bug 3 yrs ago, went to the states and had nowhere to store it unfortunately but I'm back and would like one would consider any condition, a project is fine. Any help or suggestions would be great thanks warren
Dec 14, 2020 18:40:23 GMT
bugberk: Just put the engine/box into my rolling chassis, and the prop shaft seems to be about 3" short, Have I been given the wrong one? this a total rebuild from a pile of bits.
Dec 16, 2020 13:34:31 GMT
goodtimes: thank you for the drawings! very helpful.
Dec 17, 2020 17:31:00 GMT