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Triumph SuperSports Triumph Four-Cylinder Enthusists: TT600, Speed4, and Daytona 600/650

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Old 11-19-2012, 02:12 PM   #1 (permalink)
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TT600 Rebuild

Anyone out there rebuilt a TT600 engine?

Engine #1) I have a engine with a rod poking through the front casing on Cylinder #4.

Engine #2) I also have an engine with no known history, that spent a year or more on a muddy floor in a shed. Missing a stator and a few other parts. The good news is that there was some coolant and oil still in the motor. The bad news is possibly leaves, dust, dirt or bugs could have got into the exhaust ports.

I was planning on doing a tear-down on #1 for 'Educational purposes', and then perhaps a rebuild on #2 to see if I can get it to run, perhaps using parts of engine #1 as needed.

If anyone has any experience doing a rebuild, please let me know what gotchas await.
Has anyone run a motor on a 'bench' vs in the frame?
What things do I need to check before trying to fire up #2 ?

My dis-assembly starts this week on Engine #1.

Lastly, is there anyone out there truly bored who wants to play amateur mechanic in my garage?
I am in the Dallas-Fort Worth Metro Area.

I have the workshop manual and some tools - I suspect I will be buying more tools as the project progresses.
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Last edited by OraDBAforPsoft; 11-19-2012 at 02:15 PM.
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Old 11-19-2012, 03:17 PM   #2 (permalink)
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Sounds like a good learning opportunity. While I don't know much specifically about the TT600 engine, it's a pretty simple DOHC 4 cylinder. Breaking down and rebuilding an engine is really pretty straight forward. It really just takes a basic tool set and some stuff that can be rented from an autoparts store like Autozone. It all comes down to putting forward the effort, taking your time, documenting things, taking pictures, organizing and bagging things as they come apart. Like you said, the dry run disassembly can be done with the aerated block. Like most manuals say "assembly is the reverse of disassembly."

If #2 is just needing to be hot-tanked and refreshed, you can pull the reciprocating bits (pistons, rods and crank) and then do a basic rings, bearings and gaskets job to get it back to running order. Have the head checked for any warpage. You'll have to research things like torque specs, ring gap, clearances on the bearings and how much you can take off the head to remain within spec, but it's not rocket science. Seek out some sharp gearheads in the area to find a trustworthy machine shop. You'll have to evaluate the condition of the bore as far as crosshatching and ridge left from ring wear. If the bore is sketchy, then your going to have to look into boring and oversized pistons, if it's even feasible...

I might sound like an expert to some, but I'm far from it. I've only rebuilt one engine so far. Long story short my "project" car sucked a piece of metal into the #1 cylinder ~12 years ago. Prior to that I was a wash/wax, oil, brakes and plugs sort of car guy, IIRC I was around 23yo. Well, I wasn't going to sell the car so I had no option but to learn how to fix the issue. My dad (pretty experienced car guy) helped me a bit, but I was mostly on my own with the internet and some manuals. I don't put a whole lot of miles on it, but besides some piston slap, the engine fired right up after the rebuild and still runs great (even after some abuse at the drag strip). After the fact, I found out that I should have sought out a newer, stouter version of that engine to base my rebuild on. I simply did a re-hone and re-ring, that's partially why it slaps when cold. Chalk it up to being young, poor and inexperienced I guess. Anyways...

The only way to learn is to do. I'm sure I've forgotten some stuff, but like I said, just take your time, document as you go, do plenty of research and don't be intimidated. Doing that rebuild gave me a ton more confidence to do my own work on my cars. Although it didn't work out perfectly, it's probably one of the best learning experiences in my life.
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Last edited by SquarEuro; 11-19-2012 at 03:22 PM.
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Old 11-19-2012, 03:32 PM   #3 (permalink)
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Thanks

Quote:
Originally Posted by SquarEuro View Post

If #2 is just needing to be hot-tanked and refreshed

Doing that rebuild gave me a ton more confidence to do my own work on my cars. Although it didn't work out perfectly, it's probably one of the best learning experiences in my life.
Thanks for the response - I am hoping it will be a good learning experience. Since I repaired my son's crashed Speed Four and have been doing my own Tiger servicing, I have become a lot more confident doing simple mechanical stuff.
"What one man can do another man can do" - The Edge (great movie with Sir Anthony Hopkins)

The worst case scenario is that I will have a lot of parts to sell for a TT600

I am not sure what you mean by 'Hot-tanked' ?
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Old 11-19-2012, 04:37 PM   #4 (permalink)
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Quote:
Originally Posted by OraDBAforPsoft View Post
I am not sure what you mean by 'Hot-tanked' ?
The machine shop can dunk parts in a chemical bath to strip and clean it. For iron it's usually a caustic soda bath, but there are ways to clean a aluminum block/head. You might be able to scrub things up yourself depending how dirty it is. Keep in mind that chemicals like Simple Green can damage aluminum if left on there long.
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Old 11-19-2012, 07:45 PM   #5 (permalink)
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If I lived closer, I so would help....
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