Leaded? Unleaded? (again)
#1
Posted 23 September 2006 - 12:10 AM
#2
Posted 23 September 2006 - 06:55 AM
#3
Posted 23 September 2006 - 08:35 AM
#4
Posted 24 September 2006 - 08:32 PM
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#5
Posted 24 September 2006 - 09:23 PM
I assume, never had one done, but the seats are machine out just smaller than the insert, which is then cooled (maybe using nitrogen) so it's then dropped in and allowed to expand to make an interferance fit with the head.
Just imaging that popping out with your engine running
#6
Posted 25 September 2006 - 06:47 AM
#7
Posted 25 September 2006 - 08:46 AM
#8
Posted 25 September 2006 - 08:49 AM
No such thing as being too careful (unless you're a 70yr old women in a Daihatsu Matiz doing 15mph in a 40zone....... weve all been there)
#9
Posted 25 September 2006 - 12:03 PM
As for this head; this is the original one I had for the car. Just wondering if anyone had anything solutions to securing the seat. The easy way I was thinking of using a punch to put divits radially around the inside of the "hole" in which the seat sits. Punched divits have raised edges so I figured that might hold it? That or I machine the hole bigger than make a collar to fit between the hole and the valve seat; give the pieces like a 1-2thou fit and then press it in on the arbor press (much more difficult and time consuming). I left it with a buddy of mine to consult with a mentor from the machine shop.
#10
Posted 03 October 2006 - 10:30 AM
I was trying to imagine how I'd check it, but struggling. The pics above make it a lot easier.
#11
Posted 03 October 2006 - 06:26 PM
#12
Posted 05 October 2006 - 05:04 AM
check all the others for the same starting to happen!! this is probably you're original problem!! i vaguely remeber u saying a valve was getting stuck!! scoring it up and tapping it in will hold it for about 5 minits i rekon but it will come loose again and no telling what damage it could do if it doesnt seat properly - pistons and valves having an intimate conversation!!!!!! try getting new inserts fitted but properly this time!
Too late!!!... It's already been put in! And I can't pull it out!.... God damn it!
Meanwhile my starter motor is done for. Cruddy mechanic that did my safety cert didn't know what a choke was; cranked the key till the engine ran. Gonna replace the brushes and it should work again...
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