[urq] Urq, WX, Head Problems, etc.

j.koenig koenigj at comcast.net
Fri May 18 10:16:05 EDT 2007


If you rebuild the head you've got, you have a known quality piece.  In my humble opinion, 
it might come down to how many miles you expect to put on the car when it's done.  Enough 
that you can reasonably predict you'll wear out the head again?  My guess is: probably 
not.

For what it's worth...
John

P.S.  What's a Ron Davis radiator?  Contact info.?


----- Original Message ----- 
From: "Stephen Redford" <shr42 at msn.com>

------ I have been having some work done on my '85urq.   While on the dyno, after parts 
had been replaced and fab'd, etc. ,  there was detonation..  The engine is now apart. 
Pistons have been purchased, (Wisco) and the head and block or at the machinist.   The 
machinist says that the valves and guides are out of tolerance and need replacement . 
Also , the cam journals are not properly aligned and must be rebored, (approx. extra 
$190.). The shop mechanic handling everything suggested a new head or equivalent . 
What would be an equivalent replacement head and approx.  cost to make it fit...?    I am 
thinking that I would be better off just continuing with the existing head repair, even 
though the machinist says it might now go thru another  rebuild as it has already been 
worked on previously.   So the present repair , he suggests , would likely be the last 
one...   I have already had a front mount intercooler installed , bought a new turbo, had 
a tube header made, new d
 own pipe, EFI (Megasquirt) and new Ron Davis Radiator, and other related details.   I had 
thought of getting a 3B engine and having him install it, but that would probably cost a 
lot more and many or most of the current parts would not fit.    I sure would appreciate 
some suggestions and "how to's" to make my decision.   Another head might need new valves 
and guides and new lifters and would cost to ship, from wherever and cost to be 
disassembled , manifolds might not fit, etc. ,    So I am thinking ;  just repair what I 
have and get the car on the road.   Thanks in Advance,    Stephen Redford  '85Urq  Seattle 



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