aaddpp

I was reading through the service manual for another car (Honda) I own, and noticed a diagram showing the use of a caliper (the type that looks a bit like a slide rule with two fingers at the end, not a rotor caliper) to measure the space between the two verticals on the clamp that the screw pulls together to tighten it. I don't recall the values, but the diagram gave a narrow range in which the two verticals should be apart to ensure the clamps are of correct tightness.

I was wondering if there are any values like that for the 928 and in particular Roger's fuel line kit that I can use to check my clamps against and ensure I have things put together the right way?

Thanks,
Dave

the flyin' scotsman

There was lots of discussion on the forum when Roger developed his fuel line kits as to clamp size and tightness. You may want to try search but its going back some years now.

I've used Rogers kit on my own car and customers tightening the clamps firmly with a socket wrench but not so much the clamp is 'eating into' the rubber line.

Theres a great write up in Dwaynes intake refresh epic:

aaddpp

Thanks Malcolm,

I have mine set so there is slight compression of the hose by the clamp to hopefully hold the hose in place, but not so much that it will cut in over the short term (I hope). I will have another look to see what I find on RL, but I remember a search a while back came up short. Overall I was ok, with the set up as is, but the measurement in the Honda service manual, got me wondering if there was a more numbers based approach I might have missed.

Thanks again,
Dave

hacker-pschorr

Yup
Just one of those cases where you cannot have a measurable spec for everything, just need to "get a feel" for it.

Basic rule of thumb with Norma clamps. If the two side are touching, probably need the next size up clamp.

Fogey1

http://www.dwaynesgarage.norcal928.o...%20Refresh.htm

There ya go. Fixed it for ya.

Will

auzivision

More specifically:

https://rennlist.com/forums/6238043-post129.html

the flyin' scotsman

Thx Will and Kurt...............my computer has a hard time loading Dwaynes epics prolly cause of the hi pic content...............do you folks have them on your dtop/ hard drive?

auzivision

I do on my laptop in the garage. Even then, it's slow to scroll through the pictures.

I copied, pasted, and saved them as Word documents, but they are too big to email.

aaddpp

Thanks all, I forgot about Dwayne's fuel line write up...the compression of my clamps looks a close match with what's in his photos.

Much appreciated !!!

Dave

Fogey1

I agree - BIG files. Well worth it, but if you are without a fast connection it'd be torture. I've saved them as web archives to my hard drive.

Kurt, I'd forgotten that Dwayne's posts are as great as his web pages. Thanks.

And thanks to Dwayne for his time and skills. I'd welcome a thread with photography tips & techniques from him and a bunch of our skilled documentarians.