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Hello pal. Firstly I would get everything stripped fully cleaned and measured using micrometer. Measure the crank are in tolerances also. Could get the block honed and pressure tested.
Bearing wise that will depend upon your measurements, pure motorsport, engine dynamics, ktec, renault parts...
Done ARP blots mate forgot to mention that. But with the valves you aren't gonna get much from that surely? Maybe a bit of reliability which I'll look into further. Was thinking of some cams??
Gents debating what route to go down.
I want to keep the engine standard ish but thinking of the following options. Just need some advice as to if its worth it or not.
Currently I have replaced
Main bearings
Big end bearings
Full gasket set
Sump
Water pump
Heads been ported
But now...
Gents good morning, I am after some advice regarding the main end cap bolts to hold the crank into place. I am refreshing the bottom end and was told they need to be replaced as they can stretch ever so slightly over time. So in my wisdom I threw the old ones away and now cannot seem to find any...
Be interested to see how you wite your kill switches in mate? Do you just run a positive from main battery to a 60amp mega fuse, then onto kill switch.
Cranks been measured pal with micrometer. Plus all journals. Engine only did 33k but got it measured to double check. And ill use plastigauge before reassembling
Afternoon gents,
I am currently doing an engine rebuild, just a bit of peice if mind next year for the track more than anything else.
Possible spec: bottom end rebuild, ported head, matched inlets and 197 cams.
I am looking at replacing.
Main bearings
Big end bearings
Thrust washers...
There's so much knowledge and so many good blokes on this site, who are open to telling you which is the best direction to go down. I have built a 172 from scratch replacing pretty much everything, and then found myself coming full circle back to a standard engine 197 cams and port matched...
That's enough on the bricks and motor... Back to the car itself.
Decided to see what state the pistons were in next. And set about de coaking them.
Was greated by this...
So a full strip down... Lead to this
Conrod gudgeon pin and piston all removed for cleaning.
And the end...
In other news.... The funds I saved up for the engine mods and gripper duff have been spunked on replacing the underfloor heating and new boiler in my house.
Managed to do all the electrical work myself but still set me back the best part of 6k.
Absolutely fuming to be honest, but at least I...
@NorthloopCup how do you work that one out mate? Is it due to the oil holes in the crank? Surely the best way would be to get tanged and better bearings? Or just try my luck with OE Bearings.
Next up was stripping down the cylinder head 1st removed the cams cover and tappets springs valves.
Next up was removing the oil stem seals these proved to be a little tricky but got there eventually.
Then I set about starting to clean the cylinder head ports and Chambers.
Before
After...
Jesus it's been way to long.... So an update is needed. Basically had a pi g hard think about what I want to do with the rebuild. The plan of attack is to use it at my local track Llandow as work commitments have been far to much these last 2 years.
So here goes anyway.
Engine has been pulled...
@NorthloopCup crwnk measured with a micrometer and all within tolerances. No deep scoring or pitting anyway, just a few dull shiny marks on the surface. I'm going to get it nicely polished up. Any pros to running King Bearings for a standard build? Probably get some cams and port matched inlets...