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Conference terri::cars_uk

Title:	Cars in the UK
Notice:	Please read new conference charter 1.70
Moderator:	COMICS::SHELLEYELD

Created:	Sun Mar 06 1994
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	2584
Total number of notes:	63384

2256.0. "Help wanted with oil pressure capilliary pipe" by XSTACY::DOODY () Fri Apr 22 1994 11:33

    I have replaced the capilliary pipe(metal) on my Austin-Healey Sprite
    with it's modern plastic equlvalent.
    
    However I'm finding it nearly impossible to get a good oil-tight
    connection where the pipe is pushed over the brass union at either end.
    
    If I heat the plastic it just bends at the junction of the heated/non
    heated part and still wont push onto the union.
    If I open out the plastic then it wont be a tight fit and oil still
    leaks!
    
    Has anyone a trade 'trick' for accomplishing this??
    
    
    Brian.

T.R	Title	User	Personal Name	Date	Lines
2256.1		WELSWS::HILLN	It's OK, it'll be dark by nightfall	`Fri Apr 22 1994 12:24`	4
	Some plastics become soft and malleable when heated, others shrink. How to fit and seal your pipe rather depends on the effect of heat -- what does it do?
2256.2		BAHTAT::DODD		`Fri Apr 22 1994 13:01`	8
	It sounded as if it softened with heat. I suspect that the cold metal union is stiffening the plastic again. Could you heat the union and pipe and then push it on. With non-car situations I've dumped both parts in boiling/hot water and then pushed pipe on. Whether I'd do it this way with oil piping would depend upon whether I thought I could dry it out afterwards - air? Andrew
2256.3		NEWOA::CROME_A		`Fri Apr 22 1994 13:04`	5
	Try wrapping some wire around the joint and twisting it with a pair of pliers -like a spud sack ! Andy
2256.4		FORTY2::PALKA		`Fri Apr 22 1994 18:16`	11
	Get some heat-shrink tube which will just slip over the plastic tube once you have forced it over the metal piece. Then just heat it up. It will shrink and hold the plastic tube tight. Makes a very neat job. Actually I'd be inclined to do one layer of heat shrink and then test the joint to destruction. If it is hard to get off then make the joint again, with 2 layers of heat shrink. You really dont want the joint to fail and lose all your oil ! Andrew
2256.5	Heat it with oil ?	CMOTEC::JASPER	Stuck on the Flypaper of Life	`Wed Apr 27 1994 12:16`	7
	How about heating the brass union in engine oil ? It wont matter so much then if some gets into the pipe (I guess). The joint can be tightened by binding it with fine cord (Button thread), to look like a very small hangmans noose. Tony.
2256.6	A bit late, I know, but.....	FORTY2::HOWELL		`Wed Jul 06 1994 17:25`	9
	You'd probably want to keep your Austin Healey Sprite original, I can appreciate this, but just in case there's always changing the gauge to an electronic one! Otherwise I would suggest a quick dab of gasket sealer, along with some wire to hold the pipe on (I geuss a small jubilee clip is out then?) Bodgit & Scarper Car Repairs Reading UK