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Technical & Reference Section => Tech and Restoration => Topic started by: tr8theshape on October 31, 2005, 08:21 PM

Title: Union Ratraps 9/16ths to 1/2 inch
Post by: tr8theshape on October 31, 2005, 08:21 PM: Is it possible to swap union rat traps from 9/16ths to 1/2 inch?? If so how's it done??

Can't see how to get the end caps off :(

I have a pair of 1/2 inch which are a bit rough and would like to buy new but can only find 9/16ths so would like to buy the 9/16ths and swap the insides.

Any help greatly appreciated! :)
Title: Re: Union Ratraps 9/16ths to 1/2 inch
Post by: darkslider on October 31, 2005, 09:15 PM: Don't the ends just prise off with a screwdriver? Is this the shape your thinking of?(http://x1.putfile.com/10/28613581915.jpg) (http://www.putfile.com)
Title: Re: Union Ratraps 9/16ths to 1/2 inch
Post by: tr8theshape on October 31, 2005, 09:19 PM: Dunno about prising off (they are a bit mucky) but I'll have a butchers tomorrow.

That is 'the shape of things to come'!! Not seen that pic before but reckon they are a great looking motor even today (if a touch rust prone :'() :)
Title: Re: Union Ratraps 9/16ths to 1/2 inch
Post by: darkslider on October 31, 2005, 09:25 PM: Can't remember where I found that one. I was building a Group 4 replica till I lost my job but one day it will get done. Not got any digital photo's of mine but it needs painting yet so ain't beautiful. Cracking ID I use redgroup4-tr8 on E-bay.
Title: Re: Union Ratraps 9/16ths to 1/2 inch
Post by: tr8theshape on October 31, 2005, 09:32 PM: I used to have a 2 litre TR7 total mint restore job which was real nice but a bit steady. Changed it for an S+S Preparations 3.5 which had all the right bits, 3.08 diff, Holley carb, tubular manifolds. Sounded awsome and went nicely too. Sold it two years ago - miss everything about it but the rust!!!! :'(

Hope you get yours all sorted - sounds awesome!
Title: Re: Union Ratraps 9/16ths to 1/2 inch
Post by: darkslider on October 31, 2005, 10:11 PM: What Holley a 390cfm? I've bought a 600,got cossie pistons,forged alloy rods,but not put em on yet estimating 280 to 300 brake @ flywheel.Heres another odd pic.(http://x1.putfile.com/10/28613574290.jpg) (http://www.putfile.com)
Title: Re: Union Ratraps 9/16ths to 1/2 inch
Post by: showtime on October 31, 2005, 10:14 PM: they look like old Manta headlights? :o
Title: Re: Union Ratraps 9/16ths to 1/2 inch
Post by: darkslider on October 31, 2005, 10:18 PM: Vauxhall chevette do you like them? I'm thinking they look better than std ones.(http://x11.putfile.com/10/30315340176.gif) (http://www.putfile.com)
Title: Re: Union Ratraps 9/16ths to 1/2 inch
Post by: showtime on October 31, 2005, 10:24 PM: yeah thinking about it they are too small to be Manta ones ::)
thats the good thing about competition cars, if it works & it sorta fits then it stays on there ;)

i've got an unfinished one of these in the garage i need to get shot of, if you like welding?............................

(http://www.fiat-abarth.net/images/131_9.jpg)
Title: Re: Union Ratraps 9/16ths to 1/2 inch
Post by: tr8theshape on October 31, 2005, 10:24 PM: I'm a std headlight man myself :)

300hp sounds like fun :D ;D ;D ;D
Title: Re: Union Ratraps 9/16ths to 1/2 inch
Post by: tr8theshape on October 31, 2005, 10:26 PM: Tr7 and welding goes hand in hand :'(
Title: Re: Union Ratraps 9/16ths to 1/2 inch
Post by: darkslider on October 31, 2005, 10:39 PM: It does on an early Speke built car.This is the other option gratuitous TR shot.(http://x1.putfile.com/10/28613550941-thumb.jpg) (http://putfile.com/pic.php?pic=10/28613550941.jpg&s=x1)
Title: Re: Union Ratraps 9/16ths to 1/2 inch
Post by: tr8theshape on November 01, 2005, 05:56 PM: Right then,

Had a closer look at these things today and reckon that they will be OK. One pedal is missing one reflector though, don't spose anyone has one available ???