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Author Topic: Nogs Blog  (Read 42389 times)

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Offline BashplateAlAssad

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Re: Nogs Blog
« Reply #1042 on: 11:00 - 16 February, 2018 »
I helped a mate do his Lotus Twin Cam headed RS2000 engine with a complete head rebuild, under bucket shims. Despite pieces of paper under the head with measurements and calculations double checked, we still needed multiple visits to the shop in Leytonstone. Three times in one morning I went back to swap shims. I think I kept the last two as souvenirs to remind me never to do under bucket shims ever again.
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Offline Rob the Nog

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Re: Nogs Blog
« Reply #1041 on: 17:56 - 15 February, 2018 »
Didn't even have to modify that to gain it's stamp of approval...

I aim to please ;)

Swapped the shims over this afternoon.

Hasn't gone as planned and still have a few valves that are too tight.  It doesn't help when you buy a 2.65 shim and it end up being more like 2.68.  Most were a around 0.02-0.03 out of the stated size which was a bit annoying.  Anyway, moved a few around again and am nearly there but looks like I may need to buy a couple more just to ensure some aren't past the tolerance.

The biggest pain was when I cleverly stuffed some rag down the spark plug holes in case I dropped a shim but never thought to block off the cam chain area.  When getting the shim from cylinder 1 exhaust the follower pinged back and sent the shim down the cam chain.

After several minutes shitting myself it had got lodged somewhere, some poking around with a magnet fished it from behind the timing rotor.

Anyway, all the inlets are fine now and within tolerance, and have about 4 exhaust shims that need either swapping or replacing.  I might see if I can get the supplier to replace the ones they sent on the basis they are too far out of spec.

Offline BashplateAlAssad

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Re: Nogs Blog
« Reply #1040 on: 16:11 - 15 February, 2018 »
Fnaaaarrr
Gary.

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Offline Readmarx

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Re: Nogs Blog
« Reply #1039 on: 16:09 - 15 February, 2018 »
I was hoping March time, will just need a good few weekends of solid action and can get it out again.

Didn't even have to modify that to gain it's stamp of approval...



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Offline Rob the Nog

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Re: Nogs Blog
« Reply #1038 on: 11:36 - 15 February, 2018 »
 I was hoping March time, will just need a good few weekends of solid action and can get it out again.

Offline CoxyLaad

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Re: Nogs Blog
« Reply #1037 on: 10:13 - 15 February, 2018 »
keep em coming.  whats the eta on the first burn out?
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Offline Rob the Nog

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Re: Nogs Blog
« Reply #1036 on: 09:52 - 15 February, 2018 »
Not too bad, i'll be wiping her gusset before her first spring outing just to make sure though.

Offline AlunL

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Re: Nogs Blog
« Reply #1035 on: 09:43 - 15 February, 2018 »
Hope her undercarriage is nice and clean?

Offline Readmarx

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Re: Nogs Blog
« Reply #1034 on: 07:44 - 14 February, 2018 »
Good goin Nog  ???
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Offline Rob the Nog

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Re: Nogs Blog
« Reply #1033 on: 14:26 - 13 February, 2018 »
Looks like I should have the parts delivery before the end of the week, so hopefully if not too hungover on Saturday/Sunday I should be able to get the new shims in and if new clearances all good then the cylinder head is all sorted.

The carb tidy-up doesn't look like it should take long with the new float and seals etc.  Was also looking at the tired old coolant hoses and thought sod it and so have got some nice sminky new silicone hoses, so she'd better fire up and run like a dream after all the attention she's had recently.

Once I've finally sorted all those jobs, it on to stripping the forks and then fitting a small steel section of pipe into the exhaust after the collector so I can weld in a collar for my AFR gauge and check how rich/lean it's running.

Offline Zippy

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Re: Nogs Blog
« Reply #1032 on: 12:05 - 12 February, 2018 »
All the little bits really do add up, but that's what you got when you DIY, take your time and know it's done properly. Unless you pay for a master craftsman, I'll doubt you'll get as good a job done by a commercial person. Nice work Nog  :D
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Offline BashplateAlAssad

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Re: Nogs Blog
« Reply #1031 on: 12:04 - 12 February, 2018 »
Looks good :)
Gary.

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Offline AlunL

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Re: Nogs Blog
« Reply #1030 on: 11:29 - 12 February, 2018 »
Pay once and cry once.
You’ll soon forget the £30 once it’s back on the road!

Offline Rob the Nog

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Re: Nogs Blog
« Reply #1029 on: 11:05 - 12 February, 2018 »
Have ordered my bits and hopefully should be everything I need to finish it off.

Managed to juggle a good few shims and have ordered the remaining ones from Wemoto along with new cover bolt seals and exhaust stud bolts.

Went to Cradley Kawasaki that's a good site for OEM stuff and ordered a new carb float and having looked at the state of the valve cover gasket decided to get a new on of those too.

All in all cost a bit more than expected but it's all needed stuff and will be good to know it's all sorted now (hopefully) from an engine head/carb perspective.

Offline Rob the Nog

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Re: Nogs Blog
« Reply #1028 on: 20:46 - 11 February, 2018 »
An OEM is 30 notes  :-X

Can't find a cheapy replacement anyway, so will probably just get it and like you say can be certain it's right.

Will need to get some new valve cover bolt washers anyway. Would normally reuse but the words from the wise on the forum is that old ones get too compressed over time and you'll just end up with oil leaks down the spark plugs etc. Not worth the hassle for a handful of rubber washers.