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Re: TR3/4 engine swap

To: nosimport@mailbag.com
Subject: Re: TR3/4 engine swap
From: KTRIUMPH@aol.com
Date: Wed, 28 Oct 1998 16:52:50 EST
Cc: triumphs@Autox.Team.Net
In a message dated 98-10-28 12:31:37 EST, you write:

<< Thanks to the folks above and any others I may have missed. Here is the
 complete story _as told to me_. Customer (to whom I've sold nothing) has a
 Delmar which is a TR3 based limited production car. He needs to replace the
 original engine. He is trying to do it quick and "inexpensive". He has in
 his possession a TR4 engine with a 9-spring clutch. He wants to leave the
 original 3 tranny in because he says you have to remove the fibreglas body
 to get it out. Here is what he is "planning" to do... ready for this?  Put
 the 4 engine in with the 4 flywheel after having a "machinist" bevel the
 ring gear the other way so he can use the bullet- nose starter (so he can
 use the 3 tranny).  You all have said that he also must change the front
 engine plate for the mounts, this hasn't daunted him. 
        The numbers concerned, if they matter.  Old TR3 engine  TS191494E   TR4
 replacement CT37384E
        Personally, I'd like to see him take his time, do it right, and 
build/find
 a proper TR3 engine. Apparently, unless there are other reasons than those
 above, he will proceed. Any more good roadblocks? Or am I all wet thinking
 there might be some worth to being correct. Something to ponder. I'm
 stalling him right now (and I think I found an engine)
 Thanks again,  Peter  C   (on list now not just digest) 
 .... soon a TRiumph?
  
 Peter Caldwell
 MGC-GT  , 100-4, '31 MM8 Cammy, Innocenti S,
 '52 Champ, '60 L-R 109 SW, 3 '64-73 L-R 88's
 nosimport@mailbag.com >>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Why doesn't he just swap flywheels???
The front engine plate is indeed different. The front engine mounts will not
line up. Also the TR3 motor was an open breather type, suspect you will have
to pull the freeze plug and install the breather pipe, just below the fuel
pump. The TR3 valve cover and oil cap (open type) should be used, and the TR3
carbs & linkage.
Other than these it's a direct replacement. The clutch should be the same.
Have fun!

Ken Nuelle
58 TR3A
62 TR3B
64 TR4

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