Important! : is my timing out??

1. AnTh_VTR Regular Poster Joined: May 2008 Carlisle Posts: 254 diablo 106 GTi

   #1 4th October 2010, 12:41

   the head cracked on my 106 gti so recently put a new head on, (came off a running car) , put new cambelt, head gaskrt kit on, it drove fine for an hour or so and now it keeps cutting out. it starts but wen it rev over 3000rpm it loses all power and feels like its going to stall, then it will drive for say 5 mins then it loses all power and it just doesnt start up at all, there is power from the battery as it will turn over, when it nearly starts it backfires really loudly!
   someone please help!?
2. AnTh_VTR Regular Poster Joined: May 2008 Carlisle Posts: 254 diablo 106 GTi

   #2 5th October 2010, 08:46

   anyone?
3. user_42892 Frequent Poster Joined: Mar 2010 high wycombe Posts: 848 Astra VXR

   #3 5th October 2010, 09:05

   did you skim and pressure test the head? any signs of a head gasket gone? who did the HG and head change?
4. AnTh_VTR Regular Poster Joined: May 2008 Carlisle Posts: 254 diablo 106 GTi

   #4 5th October 2010, 09:35

   didnt skim it as my mate told me it would be ok as it came of a running engine. 2 of my mates did it for me, both mechanics. no theres no sign of headgasket failure
5. burgerfeet Infrequent Poster Joined: Oct 2010 Bridgend Posts: 231 VTS 2002 - well the Mrs does

   #5 5th October 2010, 16:07

   Assuming the replacement head is ok, I would immediately check the valve timing. It is quite possible for the belt to have jumped a tooth or two especially if it has not been tensioned correctly.