Ford Focus ST This forum is for discussion of all things pertaining to the Ford Focus ST range

focus st170 timing belt

Old 25-04-2016, 12:57 PM
  #1  
subhaan
15000
Thread Starter
 
subhaan's Avatar
 
Join Date: Apr 2016
Location: uxbridge
Posts: 20
Likes: 0
Received 1 Like on 1 Post
Default focus st170 timing belt

So a week or 2 back my timing belt went and skipped a good 10 teeth engine cutout and caput. Suspecting valve damage i decided to take the head off strip it and sent it to the machine shop.
Came back with all 8 inlet valves bent and 2 exhaust valves bent. Got all that sorted inc. Shimming lapping etc. But now am reluctant to fit the new head on. Whats the likelyhood of a crack or some damage to the block in this situation bearing in mind the head underwent a full crack test which came back negative?
I have a 2002 focus st170 which is a 2.0L duratec block.
Old 25-04-2016, 01:44 PM
  #2  
STeve
Moderator




iTrader: (11)
 
STeve's Avatar
 
Join Date: Jan 2004
Location: Weymouth
Posts: 46,013
Received 864 Likes on 692 Posts
Default

so the head was naff as I suspected, the block is pretty tough tbh but like any mechanical part I would inspect it top to tail before throwing the head on or its more money your chucking away, had 3 good st170 heads here for £75 too
Old 25-04-2016, 02:35 PM
  #3  
subhaan
15000
Thread Starter
 
subhaan's Avatar
 
Join Date: Apr 2016
Location: uxbridge
Posts: 20
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by 1-PD
so the head was naff as I suspected, the block is pretty tough tbh but like any mechanical part I would inspect it top to tail before throwing the head on or its more money your chucking away, had 3 good st170 heads here for £75 too
Aah if only i knew then ended up costing me 140 at the machine shop including crack test
Old 25-04-2016, 04:53 PM
  #4  
STeve
Moderator




iTrader: (11)
 
STeve's Avatar
 
Join Date: Jan 2004
Location: Weymouth
Posts: 46,013
Received 864 Likes on 692 Posts
Default

I break st170s and im only in harrow, whole engine go for 275 tried and tested
Old 25-04-2016, 04:59 PM
  #5  
big_wasa
I've found that life I needed.. It's HERE!!
 
big_wasa's Avatar
 
Join Date: Jan 2012
Location: Linc's
Posts: 1,055
Received 126 Likes on 123 Posts
Default

Should be fine. If it's done any damage it will be to the piston ring lands.

Just stick it back together and hope for the best unless you plan on pulling the engine.
Old 26-04-2016, 06:56 AM
  #6  
subhaan
15000
Thread Starter
 
subhaan's Avatar
 
Join Date: Apr 2016
Location: uxbridge
Posts: 20
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by 1-PD
I break st170s and im only in harrow, whole engine go for 275 tried and tested
Car is back up and running now thankfully thanks for the info tho mate will defo be giving you a message if i need any other parts
The following users liked this post:
STeve (26-04-2016)
Old 26-04-2016, 07:04 AM
  #7  
STeve
Moderator




iTrader: (11)
 
STeve's Avatar
 
Join Date: Jan 2004
Location: Weymouth
Posts: 46,013
Received 864 Likes on 692 Posts
Default

glad to hear its alive and I have plenty of 170 parts if ever you need any
Old 26-04-2016, 07:47 AM
  #8  
subhaan
15000
Thread Starter
 
subhaan's Avatar
 
Join Date: Apr 2016
Location: uxbridge
Posts: 20
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by 1-PD
glad to hear its alive and I have plenty of 170 parts if ever you need any
Do you have the exhaust manifold heatshield by any chance 😄
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
big_wasa
General Car Related Discussion.
12
06-09-2016 08:56 PM
disco-stu
General Car Related Discussion.
1
16-03-2016 07:35 AM
STeve
Ford Focus ST Parts for Sale
1
01-03-2016 07:03 PM
Will Pedley Racing
Ford Focus ST Parts for Sale
0
24-02-2016 05:22 PM


Thread Tools
Search this Thread
Quick Reply: focus st170 timing belt



All times are GMT. The time now is 12:55 AM.