Just looking for general advice and answers to a couple of questions regarding rebuilding my G40 engine. it has melted piston 4 and scored the bore, I was just wondering how much of these mark can be removed with a hone? they seem pretty deep, maybe 0.1mm or so, and if they need machined out is it possible to retain the standard sized pistons?
The other question i have is where is the best place to buy parts such as the rings from? I've mainly worked on fiestas and normally use gsf or euro parts but i don't know what your opinion is on their polo parts or if there is somewhere else everyone here uses for parts. I'm 100+ miles from the nearest vw dealer so its not exactly an easy task to pop to the local garage. I've also read the head gasket thread and found it useful, just wondering if anyone has done a similar thread for other unavailable parts? Thanks in advance for any help or advice :)
You can sleave the bore... or rebore and use oversized pistons.
I can supply oil pump and chains if u look in petes dub stuff section.
Rings arent easy to come by but bartek and max rpm.can supply
Quote from: PeteG40 on November 24, 2013, 04:35:36 PM
You can sleave the bore... or rebore and use oversized pistons.
I can supply oil pump and chains if u look in petes dub stuff section.
Rings arent easy to come by but bartek and max rpm.can supply
Thanks Pete, are things like the shell bearings obsolete too?
Quote from: Caskill on November 24, 2013, 05:08:26 PM
Quote from: PeteG40 on November 24, 2013, 04:35:36 PM
You can sleave the bore... or rebore and use oversized pistons.
I can supply oil pump and chains if u look in petes dub stuff section.
Rings arent easy to come by but bartek and max rpm.can supply
Thanks Pete, are things like the shell bearings obsolete too?
Most engineering shops should be able to supply correct bearings. I got mine from VW a couple of years ago so assume they still have them..
Quote from: benh999 on November 24, 2013, 07:07:39 PM
Most engineering shops should be able to supply correct bearings. I got mine from VW a couple of years ago so assume they still have them..
Perfect i will give mines a check :) ive found a near-ish engineering firm willing to carry out the work so fingers crossed my g is ready for the summer!
with the block, I'd either go 1341cc (pistons are about £475) or source a spare block that has in-tact bores.
I've used all of the stuff from Pete (Febi ) for a bolt for bolt rebuild on mine (1341 wossners) . Awesome parts at great prices lad
Quote from: hayesey on November 26, 2013, 09:15:14 AM
with the block, I'd either go 1341cc (pistons are about £475) or source a spare block that has in-tact bores.
Sounds interesting, has anyone got info on the best place to get the pistons and what bore size they require? Do they come with rings etc. also? Thanks for the help boys!
the pistons are 77mm. You can get them from loads of places, including ebay. But you're possibly best off asking PPP in their section on here. THey are made by Wossner. They come with rings yes.
I notice there is a block for sale at the moment in the For Sale section for £120 too so that'll be the cheapest option (although I'm not sure what it has with it).
there is a block with wossners for sale too tempting!
We've got Wossner pistons listed - http://www.onlychargeddubs.co.uk/products/polo-g40-supercharged-wossner-forged-pistons.html
My engineers tend to not like going to biggest bore size but they will do it if asked, boring is £120 with re-balance at £185 which is highly recommended.