[TR] rope trick thingy

DAVID MASSEY dave1massey at cs.com
Tue Sep 3 13:15:47 MDT 2019


 The Stag and TR7 are problematic for a couple of reasons.  One is you have an aluminum head on a cast iron block.  Another is that there are steel studs running though holes in the aluminum head and the reaction of dis-similar metals can be ugly.  The third problem is that the studs don't all run parallel and the head does not just lift off of them as does the heads on earlier TR's.
The Triumph Wedge club has a loaner head puller designed for TR7's which may work on both sides on the Stag.  

Furthermore, these engines have overhead cams and unless you remove the cam before trying the Rope Trick Thingy you run the chance of bending a valve if it happens to be open at the time.  

Another day of living the dream.
 
Dave 

 
 
-----Original Message-----
From: Randall <tr3driver at ca.rr.com>
To: Paul Dorsey <dorpaul1 at gmail.com>; Triumph list Team. net <triumphs at autox.team.net>
Sent: Tue, Sep 3, 2019 1:10 pm
Subject: Re: [TR] rope trick thingy

#yiv8329242614 #yiv8329242614 -- _filtered #yiv8329242614 {panose-1:2 4 5 3 5 4 6 3 2 4;} _filtered #yiv8329242614 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} #yiv8329242614 #yiv8329242614 p.yiv8329242614MsoNormal, #yiv8329242614 li.yiv8329242614MsoNormal, #yiv8329242614 div.yiv8329242614MsoNormal {margin:0in;margin-bottom:.0001pt;font-size:11.0pt;font-family:sans-serif;} #yiv8329242614 a:link, #yiv8329242614 span.yiv8329242614MsoHyperlink {color:blue;text-decoration:underline;} #yiv8329242614 a:visited, #yiv8329242614 span.yiv8329242614MsoHyperlinkFollowed {color:#954F72;text-decoration:underline;} #yiv8329242614 .yiv8329242614MsoChpDefault {} _filtered #yiv8329242614 {margin:1.0in 1.0in 1.0in 1.0in;} #yiv8329242614 div.yiv8329242614WordSection1 {} #yiv8329242614 The “rope trick” is for emergencies, when you just can’t get the head off any other way.  In that case, chances are good that the liners are so stuck they don’t need to be retained.  But also, IMO, if it’s that bad, it’s time to pull the liners anyway (in which case they don’t need to be retained either).  I’ve taken apart some pretty sad TR3 motors, and never had to resort to the “rope trick”.  Getting the head off a Stag or TR7 can be a real challenge, but the TR3 has never been a problem for me.  - Randall  From: Paul Dorsey
Sent: Monday, September 2, 2019 9:38 PM
To: Me; Triumph list Team.net
Subject: [TR] rope trick thingy  Is the rope trick the thing where you put the rope in the cylinder down the spark  plug hole and then turn the engine so that the piston breaks the head gasket seal?  I thought someone said not to turn over the engine?  ** triumphs at autox.team.net **

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