Engine refresh
Engine refresh
Author
Discussion

virgil

Original Poster:

1,557 posts

253 months

Monday 16th November 2009
quotequote all
Griff Engine refresh

Anyone got a good source of parts for an engine refresh?...I'm thinking:

Definites:
Clean/degrease/strip
New Cam (probably a V8Dev jobbie)
Followers
Timing Chain & possible wheels if worn
Valves Ground
Valve stem seals?
Big end bearings
Mains
Piston rings
Engine block hone
Water pump
Gaskets
Clutch plate

Possibles:

Cam bearings if needed
Oversized Pistons, Rings and rebore
Crank Grind
Rockers/shaft?
Rebalance
Oil pump

Anything else worth while doing (or a 'free win') whilst the engine is out??

Cheers,

Virgil.

virgil

Original Poster:

1,557 posts

253 months

Monday 16th November 2009
quotequote all
Quinny said:
Here's a copy & paste of my spreadsheet from when I did my engine build back in 05..

Might be of help as a guidesmile

Cylinder Honing £20.00
Main bearings £58.75
Big end bearings £41.13
Cam bearings £35.25
X bolts & washers £29.38
Bottom end gasket set £58.75
Camshaft & Followers £276.13
Core plugs £14.10
Head bolts £47.00
Piston rings £58.75
Mains studs £47.00
Timing chain and gears £135.13
Clutch £346.63
Exhaust Ceramic £270.25
Exhaust manifolds bolts £25.39
Inlet manifold bolts £17.50
ACT Trumpet base £223.25
Spark plugs £27.73
Magnacor leads £86.36
Plug caps £31.49
Cam & distributor drive gear £111.63
Rocker shims £28.16
Engine build lube £11.75
Oil Filter £7.05
Distributor cap £19.38
Rotor arm £8.23
Stainless water pipes £44.65
Dyno Time £350.00
Lovely, thanks mate. What mileage had your motor done if it just required a hone and new rings (hoping to only need the same for mine!)

virgil

Original Poster:

1,557 posts

253 months

Tuesday 17th November 2009
quotequote all
Fair play.

The next question is, does anyone know a GOOD machine shop in southeast essex for engine honing and posible more. Want to get prepared for when it comes out...

spend

12,581 posts

280 months

Tuesday 17th November 2009
quotequote all
virgil said:
...Possibles:Oversized Pistons, Rings and rebore
Forget that, its a 500 with its own pistons - I don't think you can even get oversize?. Get Block re-linered (top hats preferably) and possibly look at some of the alternate bigger bore piston/rod combinations. Otherwise its @1.5k of custom made pistons AFIK.

Just gently lap the valves, grinding may end up with different valve stem heights - which we seem to hear of far too frequently and I can only imagine that over aggressive lapping has caused this?

Choice of rings may well make the most difference to the build, the rest is just attention to detail when rebuilding. Smoothing, grinding a bit here & there and carefully matching mating components. Be very careful in the bits you buy there are a lot of cheap bearings etc around.

virgil

Original Poster:

1,557 posts

253 months

Tuesday 17th November 2009
quotequote all
spend said:
virgil said:
...Possibles:Oversized Pistons, Rings and rebore
Forget that, its a 500 with its own pistons - I don't think you can even get oversize?. Get Block re-linered (top hats preferably) and possibly look at some of the alternate bigger bore piston/rod combinations. Otherwise its @1.5k of custom made pistons AFIK.

Just gently lap the valves, grinding may end up with different valve stem heights - which we seem to hear of far too frequently and I can only imagine that over aggressive lapping has caused this?

Choice of rings may well make the most difference to the build, the rest is just attention to detail when rebuilding. Smoothing, grinding a bit here & there and carefully matching mating components. Be very careful in the bits you buy there are a lot of cheap bearings etc around.
Thought they were 4.6 pistons just with a longer crank throw...

So where do I buy quality parts but at decent cost? Don't wany to buy cr@p but also donl't want to pay throught the nose for the same quality stuff...

holmbush

105 posts

210 months

Tuesday 17th November 2009
quotequote all
Quinny - I can't afford to get bored at that cost! Did the improved performance cure the boredom?

Johno

8,593 posts

311 months

Tuesday 17th November 2009
quotequote all
Quinny said:
What you have to understand is Quinny was trying to take the engine out through the wheel arch until he found this forum and we set him straight hehehehe

spend

12,581 posts

280 months

Tuesday 17th November 2009
quotequote all
... but the chewy bone stunt has put you in credit for some honest answers now though Andy hehe

He who must not be named may be very upset if he doesn't get any doggy treats from Santa.. BTW he'll be back posting soon, when I get round to springing him out - funny people keep distracting me from doing it for some reason?rofl