mellonman Posted March 12, 2012 Share Posted March 12, 2012 Okay guys im unsure where to begin on this my engine is starting to knock abit even when warm, now its been doing a knock from a cold start for a second for a while its done 160k miles and have not long done a single conversion. so my question is , is it worth rebuilding a engine with high milage like this with stock parts ie crank, pistons upgraded to over size as bore is probably in bad condition as i know no5 was down on compression and the noise is a bottom end knock ,what sort of money is that sort of rebuild? or do i just get another block 2nd hand long block with lower milage or even just call it aday and wait for the engine to let go and brake the bits Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted March 12, 2012 Share Posted March 12, 2012 Rebuild her with uprated components Quote Link to comment Share on other sites More sharing options...
Tyson Posted March 12, 2012 Share Posted March 12, 2012 Rebuild as how can you garauntee the new engine will last and isn't a pup? If you rebuild with a reputable company you can have piece of mind. Quote Link to comment Share on other sites More sharing options...
imi Posted March 12, 2012 Share Posted March 12, 2012 Rebuild as how can you garauntee the new engine will last and isn't a pup? If you rebuild with a reputable company you can have piece of mind. agree Quote Link to comment Share on other sites More sharing options...
mellonman Posted March 12, 2012 Author Share Posted March 12, 2012 £2k for a brand new bottom end from toyota what sort of cost is it to get a rebuilt bottom end Quote Link to comment Share on other sites More sharing options...
dude Posted March 12, 2012 Share Posted March 12, 2012 As you can do most of it yourself Gary I would say rebuild with Mahle Pistons, balanced bottom end and ARP bolts, I have a set of resized balanced con rods with ARP's sitting here, PW can do a good deal on bearings and pistons and a rebore is around £120. Quote Link to comment Share on other sites More sharing options...
dude Posted March 12, 2012 Share Posted March 12, 2012 £2k for a brand new bottom end from toyota what sort of cost is it to get a rebuilt bottom end You will still need to strip the Toyota bottom end and check it all................................trust me;) Quote Link to comment Share on other sites More sharing options...
johnny g Posted March 12, 2012 Share Posted March 12, 2012 I'd spend more on sorting the ECU out - and move from the FI/C to something better. Or you'll be in this position again. Quote Link to comment Share on other sites More sharing options...
supra Posted March 12, 2012 Share Posted March 12, 2012 I'd spend more on sorting the ECU out - and move from the FI/C to something better. Or you'll be in this position again. agreed, budget for a proper management while you sort your engine out. i would forge the engine or semi forge it like dude said. there are many companies that can do it but stick to the specialised companies rather than a general mechanic i would say. Quote Link to comment Share on other sites More sharing options...
mellonman Posted March 12, 2012 Author Share Posted March 12, 2012 As you can do most of it yourself Gary I would say rebuild with Mahle Pistons, balanced bottom end and ARP bolts, I have a set of resized balanced con rods with ARP's sitting here, PW can do a good deal on bearings and pistons and a rebore is around £120. Thats cheaper then what i thought for the rebore happy days, i know my way around a spanner but i doubt i would have all the tools and dont have the knowledge to do a rebuild john to be fair, i have never opened a engine before but i guess i best get my head in the books and start to read as i feel a winter rebuild is on the cards. also the crank is what is worrying me whats a crank cost? Quote Link to comment Share on other sites More sharing options...
mellonman Posted March 12, 2012 Author Share Posted March 12, 2012 I'd spend more on sorting the ECU out - and move from the FI/C to something better. Or you'll be in this position again. YES YES i hold my hands up high i know its utter rubish i was under the asometion they was good when i got it, i have my wedding in august so more money can be thrown at the car after that, mightn have to start a budget planner lol. Quote Link to comment Share on other sites More sharing options...
dude Posted March 12, 2012 Share Posted March 12, 2012 Thats cheaper then what i thought for the rebore happy days, i know my way around a spanner but i doubt i would have all the tools and dont have the knowledge to do a rebuild john to be fair, i have never opened a engine before but i guess i best get my head in the books and start to read as i feel a winter rebuild is on the cards. also the crank is what is worrying me whats a crank cost? The crank may well not be damaged at the moment but you MUST get it checked, a regrind may only be needed on the big ends which again will prob only be £10 per journal, you may get away with just a polish. Quote Link to comment Share on other sites More sharing options...
ADZsupra Posted March 12, 2012 Share Posted March 12, 2012 The stock bottom is pretty bullet proof up to 800bhp. Having said that constant abuse n bad maintainance can certainly take it's toll and during my rebuild they found a bent crank,cooked piston rings n bent valves,courtesy of it's previous owner...!(and it still got me from the Midlands to west Sussex!) So a built motor would certainly be a worth while investment. As for who? Id recommend SRD all day long.. The build quality,attention to detail and sheer craftsmanship of Lees work is unprecedented.. jamiep,Jamesy,Ricky,geo,mitch,me n many others I think would all agree! Quote Link to comment Share on other sites More sharing options...
johnny g Posted March 12, 2012 Share Posted March 12, 2012 The stock bottom is pretty bullet proof up to 800bhp. Having said that constant abuse n bad maintainance can certainly take it's toll and during my rebuild they found a bent crank,cooked piston rings n bent valves,courtesy of it's previous owner...!(and it still got me from the Midlands to west Sussex!) So a built motor would certainly be a worth while investment. As for who? Id recommend SRD all day long.. The build quality,attention to detail and sheer craftsmanship of Lees work is unprecedented.. jamiep,Jamesy,Ricky,geo,mitch,me n many others I think would all agree! As good as Lee's work is (and my car is thre too), I think you also have to note that the Syvecs controlling the timing/fuel and knock control is the main item in moving the game forward. Before that, it was 600bhp on a stock block, now it's 750bhp. This is where you need to be with any single now, IMO. Quote Link to comment Share on other sites More sharing options...
David P Posted March 12, 2012 Share Posted March 12, 2012 If the crankshaft has died, an N/A crank is the same. Quote Link to comment Share on other sites More sharing options...
ADZsupra Posted March 12, 2012 Share Posted March 12, 2012 Arr definately! The syvecs is next on my shopping list and has taken the performance if our cars to a new level. Quote Link to comment Share on other sites More sharing options...
mellonman Posted March 12, 2012 Author Share Posted March 12, 2012 okay just to get my head around it all what is needed for a bottom end rebuild please add what i miss pistons big end bearings main bearings thrut washers arp bolts water pump oil pump gasket kit (full or just cylinder?) tools requiered engine stand 450 kg torque rench decent socket set is there any special tools needed? Quote Link to comment Share on other sites More sharing options...
dude Posted March 12, 2012 Share Posted March 12, 2012 Packet of plastiguage, diamond files for ring gap, ring compressor and a workshop manual for torque settings Quote Link to comment Share on other sites More sharing options...
mellonman Posted March 12, 2012 Author Share Posted March 12, 2012 (edited) pistons big end bearings main bearings thrut washers arp bolts water pump oil pump gasket kit (full or just cylinder?) tools requiered engine stand 450 kg torque rench * decent socket set * diamond files * plastigauge ring compressor work shop manual * just keeping a list going and seeing what i need to keep a eye out for, i also had another list to the engine this afternoon and its not as bad a i first thought, we will see what the dyno run shows at the charity do shows Edited March 12, 2012 by mellonman (see edit history) Quote Link to comment Share on other sites More sharing options...
tooquicktostop Posted March 12, 2012 Share Posted March 12, 2012 You dont run massive power do you?,I would just drop a second hand engine in, you could always fix your broken engine while keeping your car on the road I built an engine for 600 bhp and it was a waste of money, a set of ARP bolts, 264 cams and full service is enough IMO Quote Link to comment Share on other sites More sharing options...
Samurai 20V Posted March 13, 2012 Share Posted March 13, 2012 So from a cost point of few, is brand new OEM pistons, rods, rings etc going to add up to much more that going with aftermarket rods and pistons (Mahle, Toda etc)? If it is alot cheaper, then it may be feasible if you looking to stay around the 700hp mark, with a proper ECU that is.. Quote Link to comment Share on other sites More sharing options...
Drew_flux Posted March 13, 2012 Share Posted March 13, 2012 I would get another engine and rebuild that. nothing worse than looking at a engineless car siting at home. Quote Link to comment Share on other sites More sharing options...
mellonman Posted March 13, 2012 Author Share Posted March 13, 2012 yeah wont ever be running massive power as i have the auto box and doubt full to change from that so 500 - 600 max. i will keep a eye out for a second engine but im keeping my options open at the moment getting some prices, the mrs will kill me blowing 6k on it lol no one say anything at the charity doo okay Quote Link to comment Share on other sites More sharing options...
dude Posted March 13, 2012 Share Posted March 13, 2012 So from a cost point of few, is brand new OEM pistons, rods, rings etc going to add up to much more that going with aftermarket rods and pistons (Mahle, Toda etc)? If it is alot cheaper, then it may be feasible if you looking to stay around the 700hp mark, with a proper ECU that is.. The Mahle pistons and ARP rods are pretty much all he needs and the pistons are prob not much dearer than stock, PW's are bearings are prob 1/3 the price of Toyota. Quote Link to comment Share on other sites More sharing options...
supraturbochris Posted March 13, 2012 Share Posted March 13, 2012 Mate sorry to hear this. how longs it been knocking for? i would strip the engine and rebuild dude Quote Link to comment Share on other sites More sharing options...
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