Date registered: Aug 2008
Vehicle: 1971 250C
Location: Toronto, Canada
Mentioned: 0 Post(s)
Quoted: 14 Post(s)
Ladies and Gentlemen,
Finally got the verdict from the engine shop.
First the bad:
* It needs 1st oversize main and big end bearings plus crankshaft resurfacing.
* Needs new valve guides
That's it, that is the bad.
block is good, pistons are good, head is good, springs are good, valves are good.
Since I have everything open, Engine shop recommendations are:
* hone the bores
* new standard size piston rings
* valve seats will be replaced and cut, valve guides honed
* re-surface the head and the block for perfect fit
He started working on the head already, valve guides are 90 bucks for 12.
I have checked the mercedes classic, metric motors and autohouseaz and main and big end bearing prices vary from 127 to 300 and piston rings vary from 220 to 571.
Any input is appreciated.
I plan to do what he recommends so I don't have to open this engine again for a while and since I'm in to do it properly. I will also put new chain and chain tensioner.
I don't expect the total cost with labor, parts and every single gasket bolts, to be more than $1500.