Hi,
I was adjusting the bonnet position today and on undoing and re-tightening one of the nuts which screw to the captive bolts in the underside of the bonnet, I found that it was just spinning around and not tightening!
The thread of the bolt and nut are both stripped. I need to re cut the thread of the bolt if possible...Anyone know what size/thread that the bolt is?...Is it metric or imperial?
Cheers,
Jez
Bonnet hinge bolt size?
Moderators: scimjim, philhoward, erikscimitardemon, Roger Pennington, Lukeyboy46
-
philhoward
- RSSOC Member
- Posts: 24007
- Joined: Tue Aug 29, 2006 5:41 pm
- Location: Staffs, UK
- Has thanked: 41 times
- Been thanked: 525 times
- Contact:
Bonnet bolt hinge size?
7/16" (11mm) spanner? If so, I'll guess they're 1/4" UNF
Phil Howard
Scimitarweb Forum Admin
SS1 1600 Rooster Turbo; Sabre Mk1.5, Sabre Mk2
Previous: SE5/5a/SS1 No.1/SS1 Rooster/SS1 1800Ti/SE5a 24 Valve
http://www.ss1turbo.com
Never try and argue with an idiot. They drag you down to their level, then beat you based on experience.
Scimitarweb Forum Admin
SS1 1600 Rooster Turbo; Sabre Mk1.5, Sabre Mk2
Previous: SE5/5a/SS1 No.1/SS1 Rooster/SS1 1800Ti/SE5a 24 Valve
http://www.ss1turbo.com
Never try and argue with an idiot. They drag you down to their level, then beat you based on experience.
-
Coupe Racing
- RSSOC Member
- Posts: 7021
- Joined: Mon Jul 23, 2007 10:51 pm
- Location: Nr Telford - Shropshire
- Has thanked: 7 times
- Been thanked: 79 times
Bonnet bolt hinge size?
If the thread of the bolt and nut are stripped - then re-tapping wont work - you will be left with a weak thread
Blessed are the Cheese makers
Better to be an hour early than 1 minute late
Better to be an hour early than 1 minute late
-
philhoward
- RSSOC Member
- Posts: 24007
- Joined: Tue Aug 29, 2006 5:41 pm
- Location: Staffs, UK
- Has thanked: 41 times
- Been thanked: 525 times
- Contact:
Bonnet bolt hinge size?
In that case, likely to be 5/16"UNF.
Phil Howard
Scimitarweb Forum Admin
SS1 1600 Rooster Turbo; Sabre Mk1.5, Sabre Mk2
Previous: SE5/5a/SS1 No.1/SS1 Rooster/SS1 1800Ti/SE5a 24 Valve
http://www.ss1turbo.com
Never try and argue with an idiot. They drag you down to their level, then beat you based on experience.
Scimitarweb Forum Admin
SS1 1600 Rooster Turbo; Sabre Mk1.5, Sabre Mk2
Previous: SE5/5a/SS1 No.1/SS1 Rooster/SS1 1800Ti/SE5a 24 Valve
http://www.ss1turbo.com
Never try and argue with an idiot. They drag you down to their level, then beat you based on experience.
-
Oxymoron
- RSSOC Member
- Posts: 306
- Joined: Sun Aug 21, 2016 1:38 pm
- Location: Warwickshire
- Has thanked: 19 times
- Been thanked: 13 times
Bonnet bolt hinge size?
The last piece of thread where it tightens looks ok...it's the rest that's mangled!Coupe Racing wrote: ↑Tue Jul 17, 2018 4:40 pmIf the thread of the bolt and nut are stripped - then re-tapping wont work - you will be left with a weak thread
The bolt cannot be removed as it's part of the bonnet.
1979 SE6a Automatic power steering!
-
scimjim
- RSSOC Member
- Posts: 35642
- Joined: Sun Oct 01, 2006 10:08 pm
- Location: Gloucester
- Has thanked: 113 times
- Been thanked: 810 times
Bonnet bolt hinge size?
I’ve had to replace the captive studs in SE5 and SE6a bonnets before, they’re welded to a plate that’s bonded into the bonnet.
Jim King
Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
Previous: SE5, 3 x SE5a, 2 x SE6a, 3 x SE6b, GTC, 2.9i GTC, 3 x 1600 SS1, 1300 SS1, Mk1 Ti Sabre, Mk1.5 CVH Sabre
Chief mechanic for: 1400 K series SS1 (Megan3), 1400 CVH EFi SS1 (Grawpy), Sabre/MX5 auto (The Flying Broomstick),
1300 SS1 (Number One) & Sarah's coupe.
CURE THE FAULT - NOT THE SYMPTOMS
Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
Previous: SE5, 3 x SE5a, 2 x SE6a, 3 x SE6b, GTC, 2.9i GTC, 3 x 1600 SS1, 1300 SS1, Mk1 Ti Sabre, Mk1.5 CVH Sabre
Chief mechanic for: 1400 K series SS1 (Megan3), 1400 CVH EFi SS1 (Grawpy), Sabre/MX5 auto (The Flying Broomstick),
1300 SS1 (Number One) & Sarah's coupe.
CURE THE FAULT - NOT THE SYMPTOMS
-
Oxymoron
- RSSOC Member
- Posts: 306
- Joined: Sun Aug 21, 2016 1:38 pm
- Location: Warwickshire
- Has thanked: 19 times
- Been thanked: 13 times
Bonnet bolt hinge size?
I've adjusted the bonnet slightly forwards away from the bulkhead, so that it doesn't catch at the rear.
Is there any vertical adjustment available, as my air cleaner is touching the bonnet in a couple of places.
Is there any vertical adjustment available, as my air cleaner is touching the bonnet in a couple of places.
Last edited by Oxymoron on Wed Jul 18, 2018 7:45 am, edited 1 time in total.
1979 SE6a Automatic power steering!
-
scimjim
- RSSOC Member
- Posts: 35642
- Joined: Sun Oct 01, 2006 10:08 pm
- Location: Gloucester
- Has thanked: 113 times
- Been thanked: 810 times
Bonnet bolt hinge size?
Is one of the hinge holes slotted on the 6a?
Jim King
Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
Previous: SE5, 3 x SE5a, 2 x SE6a, 3 x SE6b, GTC, 2.9i GTC, 3 x 1600 SS1, 1300 SS1, Mk1 Ti Sabre, Mk1.5 CVH Sabre
Chief mechanic for: 1400 K series SS1 (Megan3), 1400 CVH EFi SS1 (Grawpy), Sabre/MX5 auto (The Flying Broomstick),
1300 SS1 (Number One) & Sarah's coupe.
CURE THE FAULT - NOT THE SYMPTOMS
Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
Previous: SE5, 3 x SE5a, 2 x SE6a, 3 x SE6b, GTC, 2.9i GTC, 3 x 1600 SS1, 1300 SS1, Mk1 Ti Sabre, Mk1.5 CVH Sabre
Chief mechanic for: 1400 K series SS1 (Megan3), 1400 CVH EFi SS1 (Grawpy), Sabre/MX5 auto (The Flying Broomstick),
1300 SS1 (Number One) & Sarah's coupe.
CURE THE FAULT - NOT THE SYMPTOMS
-
Oxymoron
- RSSOC Member
- Posts: 306
- Joined: Sun Aug 21, 2016 1:38 pm
- Location: Warwickshire
- Has thanked: 19 times
- Been thanked: 13 times
Bonnet bolt hinge size?
Yes the hinges are slotted thanks, but the slots were obscured by earthing straps!
The bolts weren't particularly tight, so the bonnet has probably sunk down at the rear....now adjusted!
1979 SE6a Automatic power steering!
-
scimjim
- RSSOC Member
- Posts: 35642
- Joined: Sun Oct 01, 2006 10:08 pm
- Location: Gloucester
- Has thanked: 113 times
- Been thanked: 810 times
Bonnet bolt hinge size?
Excellent 
Jim King
Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
Previous: SE5, 3 x SE5a, 2 x SE6a, 3 x SE6b, GTC, 2.9i GTC, 3 x 1600 SS1, 1300 SS1, Mk1 Ti Sabre, Mk1.5 CVH Sabre
Chief mechanic for: 1400 K series SS1 (Megan3), 1400 CVH EFi SS1 (Grawpy), Sabre/MX5 auto (The Flying Broomstick),
1300 SS1 (Number One) & Sarah's coupe.
CURE THE FAULT - NOT THE SYMPTOMS
Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
Previous: SE5, 3 x SE5a, 2 x SE6a, 3 x SE6b, GTC, 2.9i GTC, 3 x 1600 SS1, 1300 SS1, Mk1 Ti Sabre, Mk1.5 CVH Sabre
Chief mechanic for: 1400 K series SS1 (Megan3), 1400 CVH EFi SS1 (Grawpy), Sabre/MX5 auto (The Flying Broomstick),
1300 SS1 (Number One) & Sarah's coupe.
CURE THE FAULT - NOT THE SYMPTOMS
-
Oxymoron
- RSSOC Member
- Posts: 306
- Joined: Sun Aug 21, 2016 1:38 pm
- Location: Warwickshire
- Has thanked: 19 times
- Been thanked: 13 times
Bonnet bolt hinge size?
Well I've recut the thread on the stud using a die and tightened it up with a new nut!...Phew!
One job always seems to create another on the Scimitar!
One job always seems to create another on the Scimitar!
1979 SE6a Automatic power steering!
