Ibrar Jabbar Posted November 20, 2005 Share Posted November 20, 2005 I have stripped down my old engine from my previous UK spec Supra, which blew a headgasket over a year ago. The engine would only fire on 5 cylinders when cold and run perfect when warmed up, this was due to water entering No6 cylinder and soaking the plug. Now the engine has been sitting in my garage since then, I now plan on using the short block for my new project and was looking for advice on whether or not the block would be reusable? I have removed the head and found surface rust on No6 Cylinder bore and also rusty sludge on the piston, which can be wiped cleaned. I have also removed the waterpump and found orange sludge inside the water passages. My question is has this surface rust scrapped the block or will it be OK? or will honing the cylinders and replacing the rings do the Job? I will take pictures for clearer description tommorow. Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted November 21, 2005 Share Posted November 21, 2005 That really does depend who is rebuilding it mate TBH. Quote Link to comment Share on other sites More sharing options...
Lucifer Posted November 21, 2005 Share Posted November 21, 2005 PM'ed Quote Link to comment Share on other sites More sharing options...
Pete Posted November 21, 2005 Share Posted November 21, 2005 I'd have thought it'd be ok. I guess you could always slightly skim the block and rehone slightly so there's nothing visible I'd have thought you'd be ok. No idea what a new set of slightly oversize piston rings would cost you mind. Quote Link to comment Share on other sites More sharing options...
JohnA Posted November 21, 2005 Share Posted November 21, 2005 IMO blocks are rarely affected by some surface rust or mild overheating (which could total a cyl head) You'd first clean it up properly, measure it for flatness and hone it ofcourse. Quote Link to comment Share on other sites More sharing options...
Alex Posted November 21, 2005 Share Posted November 21, 2005 Would it be best to skim it down by 0.4 to then make it perfect for a 1.6mm HKS gasket? The Block should be ok - heard of worse failures. Acid bathing might be in order? Quote Link to comment Share on other sites More sharing options...
Nic Posted November 21, 2005 Share Posted November 21, 2005 Chris W and his coconuts may be able to sort out the surface rust Quote Link to comment Share on other sites More sharing options...
Ibrar Jabbar Posted November 21, 2005 Author Share Posted November 21, 2005 OK here's some pictures of the block. http://www.pro-alloys.co.uk/gallery/block001.JPG http://www.pro-alloys.co.uk/gallery/block002.JPG close up shot of surface rust on cylinder bore http://www.pro-alloys.co.uk/gallery/block004.JPG http://www.pro-alloys.co.uk/gallery/block003.JPG Quote Link to comment Share on other sites More sharing options...
Lucifer Posted November 21, 2005 Share Posted November 21, 2005 By the looks fo the photos it will just need a hone, but you WILL need to get it measured. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 21, 2005 Share Posted November 21, 2005 Hone amd measure, expect a rebore. I wouldn't want to mess about, just re bore and fit o/size pistons and do it right, it's a LOT of hassle if it uses oil or worse if you just hone and don't measure PROPERLY (and I find very few people these days can use a Mercer guage properly, if at all... Quote Link to comment Share on other sites More sharing options...
Lucifer Posted November 21, 2005 Share Posted November 21, 2005 = (and I find very few people these days can use a Mercer guage properly, if at all... Ohhh so do we get a tip from the Master then? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 21, 2005 Share Posted November 21, 2005 I don't do engineering class tutorials Quote Link to comment Share on other sites More sharing options...
mikeyb10supra Posted November 21, 2005 Share Posted November 21, 2005 Chris I think you should have your own section of the site Chris Wilsons Tip of the day Quote Link to comment Share on other sites More sharing options...
Gamer Posted November 21, 2005 Share Posted November 21, 2005 Chris Wilsons Tip of the day Don't feed the birds Quote Link to comment Share on other sites More sharing options...
Sharpie Posted November 21, 2005 Share Posted November 21, 2005 Chris Wilsons Tip of the day #1 Do a propper job Quote Link to comment Share on other sites More sharing options...
Ian C Posted November 21, 2005 Share Posted November 21, 2005 #2 Use Motec -Ian Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 21, 2005 Share Posted November 21, 2005 #3 : Take those *&$@~ing ridiculous wheels off Quote Link to comment Share on other sites More sharing options...
Ibrar Jabbar Posted November 21, 2005 Author Share Posted November 21, 2005 #3 Don't buy big wheels OK Back on track now. I may just get the block honed & measured as I know the bottom end was good, prior to the headgasket failing. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.