Mega block

mopar_mark · Post by **mopar_mark** » Thu Dec 18, 08 10:59 pm

Brutus wrote:Well , after havin the crank crack tested , ground .010 (mains & rods) , rods ground for clearance (.007) ..................mocked the bottom end up & found #7 & 8 rod Bananarama! the clinder walls (rod caps sit higher) , was thinking of chamfering the rod bolts but was told to clearance the walls instead , all gotta come out again , will check all cylinders for clearance.

One step forward ten back.

Brutus, might be a pain in the arse mate, but I think you are doing things the right way. Always good to check, double check & check again once more for luck.

I also agree with the direction on clearancing the walls & not the rod bolts. Very easy to cause stress riser, when grinding items such as bolts. I know it can be done carefully, graining & then polishing. But on the plus side, if you ever want to change rod bolts, its a direct swap.

As you always say, better to do it right once...

Cheers,
Mark . . .

Anonymous · Post by **Anonymous** » Thu Dec 18, 08 11:18 pm

Yep , do it right the first time , a little Bananarama! off with the CR bein so low so just hacked off @ the mo , will pull it all appart tommorow , good thing #7 & 8 Bananarama! , as probably would'nt of checked due to the previous rods clearing ok.

jerry · Post by **jerry** » Thu Dec 18, 08 11:24 pm

Keep at it Ad wish i could offer some useful input but out of my depth here other than to give some encouragement

Stu · Post by **Stu** » Fri Dec 19, 08 9:04 am

Sums up my position perfectly! But it never hurts to offer encouragement, so hope it starts to go straight soon.

I like reading these threads, they teach me lots when I can get me head round 'em.

Anonymous · Post by **Anonymous** » Fri Dec 19, 08 3:12 pm

Every cloud eh Ad, get the old Dremmel out and it will be done in no time.
Al would have let it grind itself away

NaughtyAlan · Post by **NaughtyAlan** » Fri Dec 19, 08 3:23 pm

Very funny Bob [not]

Anonymous · Post by **Anonymous** » Fri Dec 19, 08 8:32 pm

Knightcharger wrote:Every cloud eh Ad, get the old Dremmel out and it will be done in no time.

Not as easy as it seems Bob , thought i'd have it sorted in no time...............

Layed the crank in , placed a rod cap & bearing on the rod journal with rod bolt , spun crank & cap then started clearancing the bottom of bore where it hits ,

then thought to meself the rod bolt did'nt foul this much with the rod & piston in the bore , so would be takin too much off

...........

Gotta be done with the piston & rod in the bore or too much will be taken off , problem bein the block has to be cleaned every time you drop the crank , pistons & rods in................that ole die grinder spits iron dust EVERYWHERE , doin one @ a time is a nightmare.

Good job it's only a baby 4.625 stroke , must be a pig with a 4.75 stroke.

Anonymous · Post by **Anonymous** » Fri Dec 19, 08 8:58 pm

There's not a great deal to come off , maybe .060 thou , leaving around .050 clearance , block has already been clearanced for the last set of rods , but the K1s have the rod bolts slightly over to one side , plus the fact the cap sits slightly higher , gotts have a steady/firm hand , don't want the carbide bit throwing itself up the cylinder wall.

2 down 6 to go.

Anonymous · Post by **Anonymous** » Fri Dec 19, 08 9:01 pm

10" slicks on the rear , no problem me thinks , tis one heavy bitch.

challenger · Post by **challenger** » Fri Dec 19, 08 9:04 pm

aint it an ally block mate whats the weight diff ?

Anonymous · Post by **Anonymous** » Fri Dec 19, 08 9:08 pm

Tis a CI block.

challenger · Post by **challenger** » Fri Dec 19, 08 9:16 pm

by the time you got the motor sorted mate and fitted you gona be like a racing pigeon anyway thats worth a 10th up the strip

just messin mate sounds like you getting there keep on it, some good work there

Anonymous · Post by **Anonymous** » Sat Dec 20, 08 2:33 am

challenger wrote:by the time you got the motor sorted mate and fitted you gona be like a racing pigeon anyway thats worth a 10th up the strip just messin mate sounds like you getting there keep on it, some good work there

You wanna see a racin pigeon in season go take a look @ Blue , was up @ his workshop the other day , threw the old steel alt pully away & had a billet one made up (true)

also saw the slim fast book on his bench.

Ole Blue was havin heart tremors thinkin about the weight of the Pit.

Anonymous · Post by **Anonymous** » Sat Dec 20, 08 2:47 am

Knightcharger wrote: Al would have let it grind itself away

always wondered what the two batteries were for.

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