Seagull Grey EK 2106

Post photos of your pride and joy, or updates on your rebuild!

Moderators: reidy, Thommo, Blacky, SunnyTim

User avatar
Craig Allardyce
Posts: 1326
Joined: Sun Aug 07, 2011 7:26 pm
State: VIC
Location: Stratford

Re: Seagull Grey EK 2106

Post by Craig Allardyce » Sun Jun 18, 2017 6:12 pm

Engine out again. Found rear main rope seal has been spinning in the block. I'm not really liking these new graphite seals.
No4 cylinder seems the worst for carbon build up from burning oil. Pistons and rings look ok with no evidence of blow-by or lacquering past top rings. Compression on all cylinders was good when tested before Tassie.
Cleaned and de-oiled valve guides and stems, rechecked clearances and there's a few more out of spec. Also the tops of the guides have not been chamfered to prevent excessive oil being held around the valve stem.

EK283
Posts: 882
Joined: Thu Mar 16, 2006 8:51 pm
State: NOT ENTERED
Location: SYDNEY NSW

Re: Seagull Grey EK 2106

Post by EK283 » Sun Jun 18, 2017 6:35 pm

Hi Craig,

Not sure if this will help or not, but the EH red motor brigade in historic racing have always had issues with to much oil getting in the rocker cover and not being able to drain back via the holes in the lifter galleries. Their solutions is to limit the oil by inserting pipe cleaners in the pushrods and to drain the oil back to the sump via the side plates. I can't remember what the grey is like in regards to priority oiling but from memory the breather pipe comes out of the side plate ? Could this be the issue ? Also I would be surprised if the sump was being pressurised by a slightly loose valve stem clearance, but you never know I suppose.
Anyway at it will be interesting if you find what the issue is.

Greg
So many cars so little time!

User avatar
Craig Allardyce
Posts: 1326
Joined: Sun Aug 07, 2011 7:26 pm
State: VIC
Location: Stratford

Re: Seagull Grey EK 2106

Post by Craig Allardyce » Sun Jun 18, 2017 8:55 pm

Yeh Greg I've made an adjustable needle valve for the oil feed to the rockers. It did help somewhat but I now believe most of the problem is due to high crankcase pressure. I also modified the sideplate (in previous posts).

EK283
Posts: 882
Joined: Thu Mar 16, 2006 8:51 pm
State: NOT ENTERED
Location: SYDNEY NSW

Re: Seagull Grey EK 2106

Post by EK283 » Mon Jun 19, 2017 5:37 pm

Sorry mate,

I should have read it all :roll: :roll:

Its a hard one alright but you will find it, eventually.

Greg
So many cars so little time!

User avatar
Craig Allardyce
Posts: 1326
Joined: Sun Aug 07, 2011 7:26 pm
State: VIC
Location: Stratford

Re: Seagull Grey EK 2106

Post by Craig Allardyce » Mon Jun 19, 2017 5:37 pm

Ok head all measured up.....not happy Jan! This head was supposed to be reconditioned. Spec for Exhaust stem clearance is .002-.0037" and Inlet stem clearance is .001 - .0027"
As you can see not one is within spec!
No1 Ex - .004"
No1 In - .003"
No2 In - .003"
No2 Ex - .004"
No3 Ex - .005"
No3 In - .003"
No4 In - .003"
No4 Ex - .005"
No5 Ex - .003"
No5 In - .004"
No6 In - .003"
No6 Ex - .003"

Just out of curiosity I measured up the old head that came off the original block. Most of the exhaust seats were well worn but all guide to stem clearances where .003" or less. This was on the old worn head that came off the engine with 150k miles on it!
Anyway block stripped so I can replace the rear main. I am sacrificing to the gods my last asbestos rope seal. I was going to save it but now my hand is forced as these graphite seals don't cut it. After that I'll be looking at working a conversion to lip seal if the rope seal leaks again. Had enough of pulling engines down for oil leaks!
Pic_0619_129.jpg
Pic_0619_129.jpg (56.15 KiB) Viewed 569 times
Pic_0619_132.jpg
Pic_0619_132.jpg (41.97 KiB) Viewed 569 times
Pic_0619_133.jpg
Pic_0619_133.jpg (55.39 KiB) Viewed 569 times
Pic_0619_134.jpg
Pic_0619_134.jpg (59.28 KiB) Viewed 569 times

EK283
Posts: 882
Joined: Thu Mar 16, 2006 8:51 pm
State: NOT ENTERED
Location: SYDNEY NSW

Re: Seagull Grey EK 2106

Post by EK283 » Mon Jun 19, 2017 5:59 pm

Craig,

Have you had the block and head crack tested ? I always do this now just for piece of mind, especially when its stripped down like that.

Nothing worse than building it all and find the same problem due to a small hairline fracture somewhere.

Greg
So many cars so little time!

User avatar
Craig Allardyce
Posts: 1326
Joined: Sun Aug 07, 2011 7:26 pm
State: VIC
Location: Stratford

Re: Seagull Grey EK 2106

Post by Craig Allardyce » Mon Jun 19, 2017 6:17 pm

Block is all good Greg. I purchased the head off Ebay from a company in Sydney as rebuilt. I haven't had issues with the head relative to cracks, only with the valve guides being worn out or over reamed. Oil consumption, running lean, and high crankcase pressure during high rpm and high load conditions such as towing up long hills. It's all starting to add up now.

User avatar
Blacky
Posts: 7441
Joined: Tue Jul 20, 2004 8:58 am
State: WA
Location: up in the Perth hills

Re: Seagull Grey EK 2106

Post by Blacky » Mon Jun 19, 2017 6:26 pm

bloody hell :( - you should put this thing together with overcentre clips, Velcro and wingnuts :shock: :shock: :shock:
There are two golden rules for success -
1) Never tell everything you know


Foundation member #61 of FB/EK Holden club of W.A.
Member of Cranksters Rod and Kustom Club

User avatar
Craig Allardyce
Posts: 1326
Joined: Sun Aug 07, 2011 7:26 pm
State: VIC
Location: Stratford

Re: Seagull Grey EK 2106

Post by Craig Allardyce » Mon Jun 19, 2017 7:36 pm

Blacky wrote:
Mon Jun 19, 2017 6:26 pm
bloody hell :( - you should put this thing together with overcentre clips, Velcro and wingnuts :shock: :shock: :shock:
It's starting to undo itself all on its own now.............bloody EK's!

I love my FB.

In the Shed
Posts: 507
Joined: Wed May 16, 2012 10:18 pm
State: SA
Location: South Australia

Re: Seagull Grey EK 2106

Post by In the Shed » Mon Jun 19, 2017 11:08 pm

I thought they fixed all these issues when they built the EK's? :lol:
A day in the shed beats a day at work!

User avatar
Blacky
Posts: 7441
Joined: Tue Jul 20, 2004 8:58 am
State: WA
Location: up in the Perth hills

Re: Seagull Grey EK 2106

Post by Blacky » Mon Jun 19, 2017 11:44 pm

Craig Allardyce wrote:
Mon Jun 19, 2017 7:36 pm
Blacky wrote:
Mon Jun 19, 2017 6:26 pm
bloody hell :( - you should put this thing together with overcentre clips, Velcro and wingnuts :shock: :shock: :shock:
It's starting to undo itself all on its own now.............bloody EK's!

I love my FB.
comment of the decade !!!! You sir have won the internet today :lol: :lol: :lol: :lol: :lol: 8) 8) 8)
There are two golden rules for success -
1) Never tell everything you know


Foundation member #61 of FB/EK Holden club of W.A.
Member of Cranksters Rod and Kustom Club

User avatar
Craig Allardyce
Posts: 1326
Joined: Sun Aug 07, 2011 7:26 pm
State: VIC
Location: Stratford

Re: Seagull Grey EK 2106

Post by Craig Allardyce » Tue Jun 20, 2017 2:55 pm

Smashing it back together now. Did some relief work on the oil drain hole in the rear main cap so it'll get a bit better drainage but not too much in that it exposes the rear seal to excess oil splash from the crankcase.
Set rear main seal (crank in and out 4 times to get it right).
Lunch break.
Pic_0620_135.jpg
Pic_0620_135.jpg (82.79 KiB) Viewed 518 times
Pic_0620_136.jpg
Pic_0620_136.jpg (59.47 KiB) Viewed 518 times
Pic_0620_137.jpg
Pic_0620_137.jpg (75.3 KiB) Viewed 518 times

User avatar
Craig Allardyce
Posts: 1326
Joined: Sun Aug 07, 2011 7:26 pm
State: VIC
Location: Stratford

Re: Seagull Grey EK 2106

Post by Craig Allardyce » Tue Jun 20, 2017 6:30 pm

Crank and pistons in. Side note all bores measured up well. Wrote a letter to the mob who built the head, don't think I'll hear anything from them. Knock off.
Digging through all of my old gaskets and found some original rear main seals in a brown paper bag. Todays bonus!
Pic_0620_138.jpg
Pic_0620_138.jpg (52.68 KiB) Viewed 508 times
Pic_0620_139.jpg
Pic_0620_139.jpg (60.46 KiB) Viewed 508 times
Pic_0620_140.jpg
Pic_0620_140.jpg (110.18 KiB) Viewed 508 times

User avatar
Craig Allardyce
Posts: 1326
Joined: Sun Aug 07, 2011 7:26 pm
State: VIC
Location: Stratford

Re: Seagull Grey EK 2106

Post by Craig Allardyce » Sat Jun 24, 2017 8:03 pm

Cleaned bum of car after all the oil leakage.
Checked manifold fit up as the gasket was a bit leaky. Tried to separate hot box to aid alignment and as usual some of the bolts broke even after heating with the torch. No dramas, remove broken bolts and re-thread. Another issue found, the hot box section around the inlet manifold was totally blocked. No wonder it was icing up in Tassie. Most of the work is done, just waiting on new valve guides for the head.
Pic_0624_141.jpg
Pic_0624_141.jpg (106.3 KiB) Viewed 465 times
Pic_0624_142.jpg
Pic_0624_142.jpg (61.16 KiB) Viewed 465 times

60Special
Posts: 159
Joined: Wed Sep 21, 2011 3:07 pm
State: WA
Location: Willetton, WA

Re: Seagull Grey EK 2106

Post by 60Special » Sat Jun 24, 2017 8:51 pm

Good work Craig. Love this stuff.

Post Reply