flyby Posted April 28, 2008 Share Posted April 28, 2008 My engine was rebuild by "Merseyside engine parts & repair specialist." "removed engine+strip, Crankshaft work, supply + fit new crankshaft, conrond bearrings. Hone bores + re-rings piston, replacment skim tappats to cylinder head. ..." ACL 0.25 oversize Price £1500 5/4/06 I talk to a local tuner here, he also say ACL is a very good product. I asume I was wrong then. When thay rebuild the engine thay did not change olie pump! And both my turboes is damaged too, and i have a lot of oile in the airvent and intercooler (from turboes) http://www.mkivsupra.net/vbb/showthread.php?t=147796 Quote Link to comment Share on other sites More sharing options...
robin Posted April 28, 2008 Share Posted April 28, 2008 Thats quite cheap for a rebuild... When mine had just the head rebuilt it cost over 2.5k Quote Link to comment Share on other sites More sharing options...
paul mac Posted April 28, 2008 Share Posted April 28, 2008 Thats quite cheap for a rebuild... When mine had just the head rebuilt it cost over 2.5k holy crap mate, you do realise you can get a brand new "bare" head from the states for about £600 and titanium valves for about £350, i hope you have something special in there for 2.5k Quote Link to comment Share on other sites More sharing options...
robin Posted April 29, 2008 Share Posted April 29, 2008 I didnt pay or get the work done. Previous owner did and I just have the receipts. I did think at the time it may have been cheaper to source a 2nd hand engine. Either way its lasted 17k miles since then. Quote Link to comment Share on other sites More sharing options...
robin Posted April 29, 2008 Share Posted April 29, 2008 Also I forgot to add, the turbos were sent away to be tested/rebuilt. Appariantly they were found not to be at fault but were reconditioned anyway as they were off. Also included a full service/ cam belt etc Quote Link to comment Share on other sites More sharing options...
flyby Posted May 10, 2008 Share Posted May 10, 2008 Do i need to change all bolts to new when fitting new CON and MAIN bearings ? Quote Link to comment Share on other sites More sharing options...
SimonB Posted May 10, 2008 Share Posted May 10, 2008 Do i need to change all bolts to new when fitting new CON and MAIN bearings ? Not necessarily. The bolts stretch when tightened - the tech manual gives minimum thickness of the bolts - you measure them at the thinest point and can re-use if they meet the specs. However, if you're going to the trouble of tearing down the block you may as well replace them. Quote Link to comment Share on other sites More sharing options...
paul mac Posted May 10, 2008 Share Posted May 10, 2008 Do i need to change all bolts to new when fitting new CON and MAIN bearings ? about half are out of tolerance on my mains so i am changing them all, get yourself a toyota manual and a vernier caliper Quote Link to comment Share on other sites More sharing options...
flyby Posted May 13, 2008 Share Posted May 13, 2008 Quite right, there are something like 7 standard main bearing sizes and 3 rod bearing sizes. There's no such thing as a standard size bearing. I was a my toyota dealer. He confirmed that there is 6 size og main bearings. No such thing as a standard size bearing. So I replace my whit toyota and not ACl standard size... Quote Link to comment Share on other sites More sharing options...
SimonB Posted May 14, 2008 Share Posted May 14, 2008 (edited) I was a my toyota dealer. He confirmed that there is 6 size og main bearings. No such thing as a standard size bearing. So I replace my whit toyota and not ACl standard size... What you need to do really is measure your crank journal sizes and bearing cap bore (although that should be the same as the number stamped on the block) and then find the size of the bearings and see what the clearance would be. I've actually decided to go with ACL bearings now as when I did this I found the clearances would all be fine. For reference the sizes that ACL make three different size ranges, STD, 0.25 and .25 oversize (the latter two are for reground cranks). For the STD ones they do a standard clearance version (the H) and a +0.001" clearance version (the HX). For the STD size ones the sizes are: con rods H=1.506mm HX=1.493mm mains H=2.004mm HX=1.991mm The H mains correspond to size 4 standard bearings and the con rod H ones are size 2 standard ones. Edited May 14, 2008 by SimonB (see edit history) Quote Link to comment Share on other sites More sharing options...
flyby Posted May 15, 2008 Share Posted May 15, 2008 What you need to do really is measure your crank journal sizes and bearing cap bore (although that should be the same as the number stamped on the block) and then find the size of the bearings and see what the clearance would be. I've actually decided to go with ACL bearings now as when I did this I found the clearances would all be fine. For reference the sizes that ACL make three different size ranges, STD, 0.25 and .25 oversize (the latter two are for reground cranks). For the STD ones they do a standard clearance version (the H) and a +0.001" clearance version (the HX). For the STD size ones the sizes are: con rods H=1.506mm HX=1.493mm mains H=2.004mm HX=1.991mm The H mains correspond to size 4 standard bearings and the con rod H ones are size 2 standard ones. For mi engine i need Main: 3pce "3" and 3 pce "4" and one "4" big end. All my conrod is size 2. Does ACL not only sale a set of "3" and a set of "4" ? Quote Link to comment Share on other sites More sharing options...
SimonB Posted May 15, 2008 Share Posted May 15, 2008 For mi engine i need Main: 3pce "3" and 3 pce "4" and one "4" big end. All my conrod is size 2. Does ACL not only sale a set of "3" and a set of "4" ? I think you might find that your clearance would still be easily in spec using ACL bearings then, the difference between 3 and 4 is very small indeed. Quote Link to comment Share on other sites More sharing options...
paul mac Posted May 15, 2008 Share Posted May 15, 2008 I think you might find that your clearance would still be easily in spec using ACL bearings then, the difference between 3 and 4 is very small indeed. after measuring my crank with a mic from work i chuckled to myself on the differences in the main bearing journals and after listening to the venerable old sage Wilson i to have decided to go with ACL (standard size) bearings Quote Link to comment Share on other sites More sharing options...
JDModified Posted May 15, 2008 Share Posted May 15, 2008 ACL bearings are fine. Toyota engines were designed with even wear in mind and so the bearing size structure was formed to put all clearances bang on and true in the hope they would wear evenly and the engine last longer as a result, as we all know toyota engines last forever. This being said i can tell you its all a load of tosh in every engine I have opened the bearings furthest from the pump wear first. I build with ACL and Clevite bearings which once fitted to a stock unmodified crank and rod always measure within tolerance. Hope that helps. James Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 15, 2008 Share Posted May 15, 2008 Just use ACL or any decent bearing and use plastigauge. as a double check, the tolerances on the gradings are so minute as to be ignorable. Quote Link to comment Share on other sites More sharing options...
paul mac Posted May 16, 2008 Share Posted May 16, 2008 Just use ACL or any decent bearing and use plastigauge. as a double check, the tolerances on the gradings are so minute as to be ignorable. sorry Chris i called you the venerable old sage Wilson would venerable sage Wilson be more acceptable Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 16, 2008 Share Posted May 16, 2008 Old is fine, and appropriate, sage is flattering! 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.