Assessing and repairing an engine...
#1
Assessing and repairing an engine...
Hello fellow addicts,
So I'm about to buy a project (all being well), an STI Type RA with an engine problem. Apparently it starts and runs, but has 'issues'...
Not to worry, the car's a good price and it's a project after all.
As a novice mechanically, can anyone give me any advice regarding how I would go around assessing the engine once I have it? Are there any books on the subject? I see lots of DIY books for VW's and Porsches, but haven't seen any for the Subaru even though the DIY community side of things is huge here.
Further to assessing the problem, has anyone rebuilt an engine themselves, and what kind of ballpark costs would be involved in rebuilding the engine to factory specs (or similar, don't have the budget for anything else)?
Any tips, experiences, recommendations very welcome...
So I'm about to buy a project (all being well), an STI Type RA with an engine problem. Apparently it starts and runs, but has 'issues'...
Not to worry, the car's a good price and it's a project after all.
As a novice mechanically, can anyone give me any advice regarding how I would go around assessing the engine once I have it? Are there any books on the subject? I see lots of DIY books for VW's and Porsches, but haven't seen any for the Subaru even though the DIY community side of things is huge here.
Further to assessing the problem, has anyone rebuilt an engine themselves, and what kind of ballpark costs would be involved in rebuilding the engine to factory specs (or similar, don't have the budget for anything else)?
Any tips, experiences, recommendations very welcome...
#2
A compression test or leak down test is an easy way to check the engine. I will not tell the whole story but will give a fair indication on whether the lump is goosed or not.
DIY is a good way of saving money but can just as easily end up costing far more if you're not experienced or competent in building engine or have the right tools. Sometimes a mix of diy and professional is the way to go with a project. You could maybe remove the engine and take off all ancillary's but sent the engine off for repair or re-build.
DIY is a good way of saving money but can just as easily end up costing far more if you're not experienced or competent in building engine or have the right tools. Sometimes a mix of diy and professional is the way to go with a project. You could maybe remove the engine and take off all ancillary's but sent the engine off for repair or re-build.
#4
A couple of tips when tinkering and removing things. Before you do take lots of photos. Then if you forget where things go you have a reference to go by. Also label things like hoses and electrical connectors. I also find it better to use lots of boxes rather than one to keep everything together. A box for each associated parts. Like all turbo stuff in one box, all ignition stuff in another and so on.
#5
Scooby Regular
iTrader: (7)
The first sticking point when rebuilding an engine to "Factory Spec" is the cost of the oem parts is very similar to forged parts, there is also no getting away from buying a new crank if it's the bearings that have failed.
I have rebuilt one and it's really not as difficult as the tuning industry would have you believe, in fact i'd go as far as saying it's easy.
BUT, TBH I think the easy and cheap route is to source a decent second hand bottom end, with so many cars being broken for profit and a few very reputable breakers on here, that's the route i'd take in your position, you just have to take your time and make sure you source a good engine.
My reasoning behind this is because by the time you've spent £1200 on rods pistons, crank, machining and £400 on a full gasket set as well as cambelt kit, oil modine, sump,oil pump, water pump and various other ancillaries, we are not talking high end components either, it's by far the cheaper/ easier option to drop in a decent low miles engine for circa £800/1200.
I'm sure there are those that will disagree with this, but i'd say they are in possession of more money than sense.
I have rebuilt one and it's really not as difficult as the tuning industry would have you believe, in fact i'd go as far as saying it's easy.
BUT, TBH I think the easy and cheap route is to source a decent second hand bottom end, with so many cars being broken for profit and a few very reputable breakers on here, that's the route i'd take in your position, you just have to take your time and make sure you source a good engine.
My reasoning behind this is because by the time you've spent £1200 on rods pistons, crank, machining and £400 on a full gasket set as well as cambelt kit, oil modine, sump,oil pump, water pump and various other ancillaries, we are not talking high end components either, it's by far the cheaper/ easier option to drop in a decent low miles engine for circa £800/1200.
I'm sure there are those that will disagree with this, but i'd say they are in possession of more money than sense.
Last edited by ditchmyster; 17 June 2013 at 07:25 PM.
#6
The first sticking point when rebuilding an engine to "Factory Spec" is the cost of the oem parts is very similar to forged parts, there is also no getting away from buying a new crank if it's the bearings that have failed.
I have rebuilt one and it's really not as difficult as the tuning industry would have you believe, in fact i'd go as far as saying it's easy.
BUT, TBH I think the easy and cheap route is to source a decent second hand bottom end, with so many cars being broken for profit and a few very reputable breakers on here, that's the route i'd take in your position, you just have to take your time and make sure you source a good engine.
My reasoning behind this is because by the time you've spent £1200 on rods pistons, crank, machining and £400 on a full gasket set as well as cambelt kit, oil modine, sump, and various other ancillaries, we are not talking high end components either, it's by far the cheaper/ easier option to drop in a decent low miles engine for circa £800/1200.
I'm sure there are those that will disagree with this, but i'd say they are in possession of more money than sense.
I have rebuilt one and it's really not as difficult as the tuning industry would have you believe, in fact i'd go as far as saying it's easy.
BUT, TBH I think the easy and cheap route is to source a decent second hand bottom end, with so many cars being broken for profit and a few very reputable breakers on here, that's the route i'd take in your position, you just have to take your time and make sure you source a good engine.
My reasoning behind this is because by the time you've spent £1200 on rods pistons, crank, machining and £400 on a full gasket set as well as cambelt kit, oil modine, sump, and various other ancillaries, we are not talking high end components either, it's by far the cheaper/ easier option to drop in a decent low miles engine for circa £800/1200.
I'm sure there are those that will disagree with this, but i'd say they are in possession of more money than sense.
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