ex studs
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- Hawaiis0
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- Model: Excel SA (No 3); Elite 504
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Re: ex studs
M10 for SE HC engines M8 for earlier models.
Change over point from engine number 23749.
VIN 89 D 2408
VIN 89 - 0389
Change over point from engine number 23749.
VIN 89 D 2408
VIN 89 - 0389
Nothing is fool proof. Fools are clever!
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Re: ex studs
Thanks for prompt reply
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- Senior Poster
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Re: ex studs
Ones from Ford are great for later cars, as they come with a spline drive end and copper nuts.
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- Senior Poster
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- Joined: Tue Nov 01, 2005 20:01
- Model: SE x2 + Celebration x2
- Colour: Gold,blue and green
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Re: ex studs
I was given some by another Lotus owner who used to work for them, then later for Ford in their engine design area. These studs make it much easier to fit them, as you don't need to do the bit of two nuts locked together in order to screw them in. The ones in question are the right length for our application,but here's an image of some Fiesta ones (which may be the wrong dimensions)
- rbgosling
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Re: ex studs
Mine is a 1990 SE, and definitely M8!! 42mm long.
Just had to replace a couple, and used these off eBay - stainless, so they won't turn into rusty stumps like the old ones. They don't have the non-threaded section in the middle, so won't position the manifold with quite such micron accuracy as the originals, but a) I don't think that really matters, and b) with only 2 out of 12 studs like this it makes no difference.
Just had to replace a couple, and used these off eBay - stainless, so they won't turn into rusty stumps like the old ones. They don't have the non-threaded section in the middle, so won't position the manifold with quite such micron accuracy as the originals, but a) I don't think that really matters, and b) with only 2 out of 12 studs like this it makes no difference.
"Farmer" Richard
1990 Lotus Excel SE (Lilith)
2022 MG MG5 EV (not due to be a classic for quite a few years...)
2011 Nissan Leaf (Ragly - EV pioneer, must be due to be a classic one day)
1990 Lotus Excel SE (Lilith)
2022 MG MG5 EV (not due to be a classic for quite a few years...)
2011 Nissan Leaf (Ragly - EV pioneer, must be due to be a classic one day)
- Lotus-e-Clan
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Re: ex studs
'89 SE with new M8 stainless studs from Gary Kemp. Replaced all mine about 3 years ago when the engine was out for a clutch.
I have a set of stud extractor sockets so have no need for a spline type fitting. In my experience exhaust studs can require a lot of torque to remove so I would suspect it would be a challenge to remove them after years in-service using only a torx tool ..great for quick, damage-free, assembly on a factory line mind, and you can still use stud sockets when it's time to remove them so no real problem using either type.
I have a set of stud extractor sockets so have no need for a spline type fitting. In my experience exhaust studs can require a lot of torque to remove so I would suspect it would be a challenge to remove them after years in-service using only a torx tool ..great for quick, damage-free, assembly on a factory line mind, and you can still use stud sockets when it's time to remove them so no real problem using either type.
Peter K
- Hawaiis0
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Re: ex studs
What is your engine number if you dont mind. All SEs should be M10 according to book.
Nothing is fool proof. Fools are clever!
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Re: ex studs
Are we mixing up manifold to head and manifold to downpipe?
Pete
Pete
- rbgosling
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Re: ex studs
Think you’ve hit the nail on the head there Pete!Pete Boole wrote: ↑Tue May 05, 2020 17:58Are we mixing up manifold to head and manifold to downpipe?
Pete
"Farmer" Richard
1990 Lotus Excel SE (Lilith)
2022 MG MG5 EV (not due to be a classic for quite a few years...)
2011 Nissan Leaf (Ragly - EV pioneer, must be due to be a classic one day)
1990 Lotus Excel SE (Lilith)
2022 MG MG5 EV (not due to be a classic for quite a few years...)
2011 Nissan Leaf (Ragly - EV pioneer, must be due to be a classic one day)
- Hawaiis0
- Senior Poster
- Posts: 4146
- Joined: Sun Jun 30, 2013 18:39
- Model: Excel SA (No 3); Elite 504
- Colour: BRG; Dirty White
- Year: 1986
- Location: West Oxfordshire
Re: ex studs
Sorry carlos made a mistake
The studs aren't identified by size in the parts (my version) manual, only part number. The nuts are though and as pointed out are M8.
The studs aren't identified by size in the parts (my version) manual, only part number. The nuts are though and as pointed out are M8.
Nothing is fool proof. Fools are clever!