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1979 Mk2 restoration (Operation Boomerang)

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Moderators: chrisu, paul doran, Taffus, KeithZ1R

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Gavin
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1979 Mk2 restoration (Operation Boomerang)

#1 PostAuthor: Gavin » Tue Jan 15, 2019 11:48 pm

I purchased the bike in the mid 90’s form an import company based in Harlston Norfolk a few years later 2000 I sold it to a friend, in December of last year it came home, unfortunetly it has been stood in his garage for a few years so needs a bit af TLC
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Pics of its last day on the road
Z1000 MK2
Z1300 DFI

Gavin
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Re: 1979 Mk2 restoration (Operation Boomerang)

#2 PostAuthor: Gavin » Tue Jan 15, 2019 11:51 pm

It’s first day home after it’s time away
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Last edited by Gavin on Tue Jan 15, 2019 11:56 pm, edited 1 time in total.
Z1000 MK2
Z1300 DFI

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8 Valve Mark
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Re: 1979 Mk2 restoration (Operation Boomerang)

#3 PostAuthor: 8 Valve Mark » Tue Jan 15, 2019 11:55 pm

:pop :pop

Gavin
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Re: 1979 Mk2 restoration (Operation Boomerang)

#4 PostAuthor: Gavin » Wed Jan 16, 2019 12:00 am

The start of the investigations
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Z1000 MK2
Z1300 DFI

Gavin
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Re: 1979 Mk2 restoration (Operation Boomerang)

#5 PostAuthor: Gavin » Wed Jan 16, 2019 12:03 am

After some advice from Mark regarding the corrosion on the Cams a little oil and a scotch rite pad
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Z1000 MK2
Z1300 DFI

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8 Valve Mark
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Re: 1979 Mk2 restoration (Operation Boomerang)

#6 PostAuthor: 8 Valve Mark » Wed Jan 16, 2019 12:37 am

they came up well gavin. :lol: lookin forward to the next installments.. m

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jonathan
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Re: 1979 Mk2 restoration (Operation Boomerang)

#7 PostAuthor: jonathan » Wed Jan 16, 2019 9:59 am

Did you see there is a mark II exhaust on eBay......
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jonathan
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Re: 1979 Mk2 restoration (Operation Boomerang)

#8 PostAuthor: jonathan » Wed Jan 16, 2019 10:04 am


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hartyb
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Re: 1979 Mk2 restoration (Operation Boomerang)

#9 PostAuthor: hartyb » Wed Jan 16, 2019 11:28 am

its worth remembering that the 1000J Exhaust are the same all but the Numbers
there was a mint one on ebay as well but the guy wants £2300 odd the DK one is double what it should be for that condition

just my thoughts
Z900A4, Z1000A1, Z1000ST E1,E2, Z1000Mk2 A3,Z1000H Z1R D1, z1000j3, Z1000P. Z900RS SE,
Z1300 A1,
GPZ1100 Unitrack, GPZ750E, GPZ 750Turbo, GPZ900r A1, A2, A6
ZZR1100 Purple and orange
KE175b, KE175F
along with some lesser makes :eek

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Re: 1979 Mk2 restoration (Operation Boomerang)

#10 PostAuthor: Philippe » Thu Jan 17, 2019 3:48 pm

Hi Gavin
you're doing a great job! Keep the pictures coming!
Let the good times roll !
GrtZ
Philippe
the differences between a little boy and an adult man is the price and size of their toys!

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rickm
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Re: 1979 Mk2 restoration (Operation Boomerang)

#11 PostAuthor: rickm » Thu Jan 17, 2019 3:58 pm

Very impressed with how those cams turned out :up
Initially I'd have taken them for scrap !
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Gavin
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Re: 1979 Mk2 restoration (Operation Boomerang)

#12 PostAuthor: Gavin » Fri Jan 18, 2019 7:45 pm

Ricky
Took advice from 8 valve mark
Oil the cams wrap in oiled kitchen roll for a few hours then I used a scotch rite pad to clean them up,
Z1000 MK2
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Gavin
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Re: 1979 Mk2 restoration (Operation Boomerang)

#13 PostAuthor: Gavin » Fri Jan 18, 2019 7:57 pm

Regarding the mk2 exhausts from DK, when I bought my first ever Mk2 in 1980 it had original exhausts, they lasted about 18 months before our climate wrecked them, so I bought an Alfa 4 into 1, very load and anti social :D :D :D, when I first had this one in 1995 it also had originals they also rotted quickly so put a Marving 4into 1, personally I think the 4 into 1 suits the Mk2
Z1000 MK2
Z1300 DFI

Gavin
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Re: 1979 Mk2 restoration (Operation Boomerang)

#14 PostAuthor: Gavin » Sat Jan 19, 2019 12:09 pm

Taken a look at the cylinder head over the last couple of days a good degrease a coat or 2 of a good paint stripper (the original coating is proving to be stubborn)
It appears the exhaust valve clearances where virtually closed because of the carbon build up, I also believe the head has been off at some point due to a broken fin where you would have expected it to happen, definitely not me or the previous owner because neither of us has ever stripped the head off the bike and it looks like old damage
Z1000 MK2
Z1300 DFI

Gavin
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Re: 1979 Mk2 restoration (Operation Boomerang)

#15 PostAuthor: Gavin » Sat Jan 19, 2019 12:19 pm

Gave the the carbon build up a clean with a fine scotchbrite pad soaked in oil, needs more work but only spent just over 5 minutes per cylinder to get to this stage, had give up before hypothermia set in, (the trouble with concrete garages this time of year )
Also noticed the valve cut on No1 exhaust looks a little odd and this is the one on the test I did the liquid just drained out in under 30 seconds, which again makes me believe the had has been off before.
Thinking back to when I originally bought the bike around 1995 every gasket was new and there was blue gasket sealer visible.
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Z1000 MK2
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