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+--- Thread: Cully's spare Gti6 engine (/showthread.php?tid=17479)
RE: Cully's spare Gti6 engine - cully - 06-12-2013
done some icing of the cake today
liquid gasket
geting better at the icing
sump is on all torqued down
box of empty bags box's scrap bits is getting bigger
RE: Cully's spare Gti6 engine - cully - 03-01-2014
ok so ive not put anything here for a while
so an update..
before xmas i bought a light flywheel and pulley, which now after taking some advice from an engine builder will be fitted to this new engine rebuild,
but first,
im going to strip the crank out the block......i know ive just built it!
and send the Pulley/crank/flywheel away to be ballanced
one thing was bugging me as this engine is an earlyer engine with a non keyed oil pump drive how would they balence it answer fit a later keyed sprocket
so haved ordered the sprocket and new chain before christmas
went and picked it up yesterday
[attachment=12390]
i have been recomended to use SRD Engines from launceston for the ballancing work as he has experiance with these engines
so now ive got to strip the crank and clean the surfaces again and save some money for the ballance work
this may be a project lasting a more than the winter
RE: Cully's spare Gti6 engine - Piggy - 03-01-2014
Ballance work be well worth it.
You getting the rods all balanced in weight too?
RE: Cully's spare Gti6 engine - ozonehostile - 03-01-2014
I'm wanting to do something along these lines with another Tu5jp4 engine for my 106.
Very similar situation I guess, car is a weekend toy and already has a good engine.
Just wandering how much you think it's going to cost you in total to rebuild your engine with all the uprated shiney bits?
RE: Cully's spare Gti6 engine - cully - 03-01-2014
as for the rods i was told it would be worth it,
but not to bother cause of the issues or remmoving the gudion pin as its a press fit
ie you need to heat the rod and press out the pin
RE: Cully's spare Gti6 engine - cully - 03-01-2014
(03-01-2014, 10:18 AM)ozonehostile Wrote: Just wandering how much you think it's going to cost you in total to rebuild your engine with all the uprated shiney bits?
dont want to add it up as the wife will find out
but i think its begining to run away now and get silly for a std engine
one things for sure you could do it a lot cheaper by using std bearings not uprated race sets
RE: Cully's spare Gti6 engine - jammapic - 03-01-2014
(03-01-2014, 10:21 AM)cully Wrote:(03-01-2014, 10:18 AM)ozonehostile Wrote: Just wandering how much you think it's going to cost you in total to rebuild your engine with all the uprated shiney bits?
dont want to add it up as the wife will find out
but i think its begining to run away now and get silly for a std engine
one things for sure you could do it a lot cheaper by using std bearings not uprated race sets
But... wheres the fun in that? :-)
RE: Cully's spare Gti6 engine - Piggy - 03-01-2014
and now you can boost it
RE: Cully's spare Gti6 engine - cully - 03-01-2014
(03-01-2014, 10:29 AM)Piggy Wrote: and now you can boost it
the plan was to make it future proof,
so turbo or charging or TB's could be an option in the distance
RE: Cully's spare Gti6 engine - ozonehostile - 03-01-2014
Haha future proof. Love it
RE: Cully's spare Gti6 engine - Chris_90 - 03-01-2014
What does balancing do? Make it run smoother?
RE: Cully's spare Gti6 engine - cully - 03-01-2014
(03-01-2014, 12:45 PM)Chris_90 Wrote: What does balancing do? Make it run smoother?
it does exactly the same as when you balance your wheels
it removes the resonance that produces vibration which wears/breaks things
so yes produces a smoother runing engine
RE: Cully's spare Gti6 engine - ozonehostile - 03-01-2014
(03-01-2014, 12:45 PM)Chris_90 Wrote: What does balancing do? Make it run smoother?
Things like cranks and conrods will be made within a tolerance from the factory, probably quite a wide tolerance to keep production costs down, so that can mean that out of your 4 rods for example a couple of them might be slightly heavier a one end. Not really a huge deal but if you think that a difference of maybe half a gram weight difference on two different rods, that's going to mean alot more inertia being thrown around at 7k rpm, not something that's desirable with a high revving engine. Balanced bottom end is a step towards making your nice new motor last a bit longer and be more predictable at high rpm.
At least that's my understanding of it?
RE: Cully's spare Gti6 engine - jammapic - 03-01-2014
Makes it smoother, less prone to breaking stuff and if you go for a lighten too, makes it rev better / helps produce more power.
RE: Cully's spare Gti6 engine - darrenjlobb - 03-01-2014
Ive found the balancing to be VERY noticable on the diesel motors ive built, id imagine the gti motor a bit more care is taken as stock due to its revvy nature, but certainly worthwhile...Id NEVER built an XU / DW derv without balancing it, the difference it makes is epic...
RE: Cully's spare Gti6 engine - Chris_90 - 03-01-2014
Oh thanks for that guys, so is it worth it in my engine build? Looking at 170bhp reliable maybe push it to 200bhp if possible. Xud btw
Or is it only worth it on higher powered cars?
(03-01-2014, 01:33 PM)darrenjlobb Wrote: Ive found the balancing to be VERY noticable on the diesel motors ive built, id imagine the gti motor a bit more care is taken as stock due to its revvy nature, but certainly worthwhile...Id NEVER built an XU / DW derv without balancing it, the difference it makes is epic...
Edit that answers my question
Best way to get stuff balanced? Take it to engine shop to be done? Or can it be done diy in shed?
RE: Cully's spare Gti6 engine - ozonehostile - 03-01-2014
You'd want them balanced by someone who has the equipment to balance parts as a set
RE: Cully's spare Gti6 engine - Dum-Dum - 03-01-2014
As Darren says balancing is very worthwhile, IMO its one of the best things you can have done in a machine shop. IIRC when my HDi lump was done it wasn't just a few grams out it was a few % out on brand new standard components.
Personally I wouldn't imagine that the GTi6 is any better balanced than a stock XUD/HDi.
RE: Cully's spare Gti6 engine - Chris_90 - 03-01-2014
So what bits need balancing? Crank, rods, flywheel?
What would this service cost?
RE: Cully's spare Gti6 engine - Tom - 03-01-2014
Clutch aswell.
RE: Cully's spare Gti6 engine - Dum-Dum - 03-01-2014
Ideally anything that turns mate; bottom pulley, oil pump drive, crank, flywheel, clutch, rods, pistons, gudgeon pins and the rod bearings and gudgeon pin circlips need to be checked to make sure they are identical weights.
RE: Cully's spare Gti6 engine - Chris_90 - 03-01-2014
(03-01-2014, 02:26 PM)Dum-Dum Wrote: Ideally anything that turns mate; bottom pulley, oil pump drive, crank, flywheel, clutch, rods, pistons, gudgeon pins and the rod bearings and gudgeon pin circlips need to be checked to make sure they are identical weights.
Wow not sure I will go that far in to it, surely it would cost a fortune to have the lot balanced?
RE: Cully's spare Gti6 engine - ozonehostile - 03-01-2014
(03-01-2014, 03:12 PM)Chris_90 Wrote:(03-01-2014, 02:26 PM)Dum-Dum Wrote: Ideally anything that turns mate; bottom pulley, oil pump drive, crank, flywheel, clutch, rods, pistons, gudgeon pins and the rod bearings and gudgeon pin circlips need to be checked to make sure they are identical weights.
Wow not sure I will go that far in to it, surely it would cost a fortune to have the lot balanced?
Yeah you're probably right, most engine builders charge for the time rather than a set price, so you'd be looking at a fair bit just based on that logic
RE: Cully's spare Gti6 engine - Dum-Dum - 03-01-2014
(03-01-2014, 03:12 PM)Chris_90 Wrote:(03-01-2014, 02:26 PM)Dum-Dum Wrote: Ideally anything that turns mate; bottom pulley, oil pump drive, crank, flywheel, clutch, rods, pistons, gudgeon pins and the rod bearings and gudgeon pin circlips need to be checked to make sure they are identical weights.
Wow not sure I will go that far in to it, surely it would cost a fortune to have the lot balanced?
Not really, especially if your not having it lightened at the same time. crank/fly/clutch balancing takes the time, the pistons and rods are just machined to all weigh the same as each other.
Personally I'm not sure I'd have it all balanced together in case you want to change clutch/fly at a later date. so get them done separately.
RE: Cully's spare Gti6 engine - chrisrallye - 03-01-2014
All my engine has been balanced as its best to when u take it up to high revs
RE: Cully's spare Gti6 engine - cully - 16-02-2014
time to get this moving as im going to loose stuff if im not carefull
anyway ive decided not to ballence as im not allowed to spend the money on it
which is a shame
I have had the sump off again and stripped the oil pump cleaned and rebuilt it
im glad i did as there were parts of old shells lodged in the strainer
other than that there is verry little in them other than gears and a releif valve and spring.
so i reasembled the oil pump into the block with new Chain and the newer type sprocket not forgetting the little oring seal
Today it was head on day and torque down
35nm +70nm + 180deg's
then went on to install the cams and pulleys then pined it all in time!
[attachment=13622]
[attachment=13623]
[attachment=13624]
then i decided to attack the engine mount with a disc cutter
[attachment=13625]
RE: Cully's spare Gti6 engine - Anton - 16-02-2014
Hmmm i think i would have held out until funds allowed to get it balanced.
RE: Cully's spare Gti6 engine - Frosty - 16-02-2014
Cully do you know of anywhere local round use to get bits balanced?
RE: Cully's spare Gti6 engine - Niall - 16-02-2014
Why did you grind off the PAS mounting? What are you planning to put there?
RE: Cully's spare Gti6 engine - 7057sam - 16-02-2014
(16-02-2014, 04:02 PM)Niall Wrote: Why did you grind off the PAS mounting? What are you planning to put there?
Throttle bodies
