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displaying posts 26 to 44 of 44
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| Author | Subject: Race car's engine issues |
 welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,871 Status: Offline |
Post #26
are you slackening the bolts to allow the pulleys to rotate as you tension the belt?I have a pair of old valve stems to use as locking pins. ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
 Posted 3rd Jul 2017 at 10:18
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demondriverdan
Seasoned Pro  Location: Londinium Registered: 29 Nov 2010 Posts: 2,665 Status: Offline |
Post #27
Slacken pulley bolts so they move a bit, put belt on, tension belt, tighten pulley bolts, turn engine 2 revolutions, then check timing and it doesn't line up________________________________________ Rallye Race Car |
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Posted 3rd Jul 2017 at 10:42
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,871 Status: Offline |
Post #28
do you use a holding tool on the cam pulleys? ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 3rd Jul 2017 at 10:58
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demondriverdan
Seasoned Pro Location: Londinium Registered: 29 Nov 2010 Posts: 2,665 Status: Offline |
Post #29
No. How does that tool work? Where do you put the prongs?________________________________________ Rallye Race Car |
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Posted 3rd Jul 2017 at 12:29
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fatlapit
Seasoned Pro  Location: STOCKSFIELD Registered: 02 Nov 2010 Posts: 3,040 Status: Offline |
Post #30
in the pulley arms________________________________________ |
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Posted 3rd Jul 2017 at 12:36
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demondriverdan
Seasoned Pro Location: Londinium Registered: 29 Nov 2010 Posts: 2,665 Status: Offline |
Post #31
Ohhh, I see. I'll get one of those as well then assuming I can find one. There's a Laser one but apparently it's crap!________________________________________ Rallye Race Car |
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Posted 3rd Jul 2017 at 12:48
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,871 Status: Offline |
Post #32
its a laser one I use, seems to work fine tbh! its a laser one pictured.________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 3rd Jul 2017 at 13:24
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grantpipe
Junior User  Location: golspie Registered: 01 Dec 2014 Posts: 86 Status: Offline |
Post #33
When I put a belt on mine was told to slacken cam pulleys and turn them hard one way then put the belt on and tension it then tighten pulleys. Sure the thread was on here. Av never had a problem. |
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Posted 3rd Jul 2017 at 15:40
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jeffers
Forum Admin Location: Leeds Registered: 14 Dec 2003 Posts: 3,702 Status: Offline |
Post #34
demondriverdan wrote: Had a look over some stuff today and found a few issues. Compression was (from L-R as I look at the engine, in bar): 12 - 10.5 - 12.5 - 12 so not great! Plugs were also not in a great state:  Finally the exhaust cam was out of time a bit. I'm going to buy a proper locking kit rather than the drill bits you see here as I tried to re-time it today but it moved again for some reason. Clearly I'm doing something wrong so will give it another shot with a proper kit.  I use M6 capheads to lock the pulleys, 20mm long iirc tighten them up to the locking tab and never have any issues with anything moving.... ________________________________________ Team Running Engine again!Team Negative Camber! My Budget track engine build thread! Now appearing at a Trackday near you!!  |
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Posted 3rd Jul 2017 at 20:41
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miki4
Regular  Location: Cologne Registered: 09 Nov 2015 Posts: 393 Status: Offline |
Post #35
Yeah, you need to install a locking tool to the cam sprockets to hold them in place while slackening and tightening their bolts. If you don't do this, you put unevenly distributed stress on the cambelt which evens out (at least to some extent) as soon as you remove the locking pins resulting in the camshafts being out of time. Also, after you slackened the bolts, before putting the new belt on, turn the cam sprockets fully clockwise so there is enough room for them to turn back while tensioning the belt.The official locking tool for the cam sprockets from Peugeot is this:  I used one of that type which worked very well: http://www.ebay.com/itm/Twin-Camshaft-Sprocket-Holding-Tool-For-Timing-Belt-/190304956565 Cheers |
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Posted 4th Jul 2017 at 00:34
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,871 Status: Offline |
Post #36
jeffers wrote: I use M6 capheads to lock the pulleys, 20mm long iirc tighten them up to the locking tab and never have any issues with anything moving.... not ideal as the thread diameter is not a perfect 6mm and they will bite into the soft alloy of the head and not sit straight, what you need is a smooth steel pin. regardless of that, they shouldn't be in when you tighten the bolts fully. ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 4th Jul 2017 at 10:17
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miki4
Regular Location: Cologne Registered: 09 Nov 2015 Posts: 393 Status: Offline |
Post #37
jeffers wrote: I use M6 capheads to lock the pulleys, 20mm long iirc tighten them up to the locking tab and never have any issues with anything moving.... Just for clarification. With the locking pins you lock the camshaft so it doesn't move. When you loosen the sprocket bolts, the sprockets can move independantly in relation to the camshafts for some degrees so the tension on the cambelt can distribute evenly while tensioning. As soon as you tighten the sprocket bolts back up you need to hold the sprockets still too. |
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Posted 4th Jul 2017 at 14:15
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demondriverdan
Seasoned Pro Location: Londinium Registered: 29 Nov 2010 Posts: 2,665 Status: Offline |
Post #38
Yup, I know to not have the locking pins in place while tightening or you risk breaking the locating lug thing behind the sprocket!________________________________________ Rallye Race Car |
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Posted 4th Jul 2017 at 14:33
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demondriverdan
Seasoned Pro Location: Londinium Registered: 29 Nov 2010 Posts: 2,665 Status: Offline |
Post #39
Bit of an update. I re-timed the engine at the weekend which was much easier with the new tools! I'm chasing up with Omex about a throttle position sensor as I could have a faulty one. Seeing as they last emailed me 12 days ago and have just said they'll "get back to me shortly", I'm not exactly happy with them! I know Chris has had some issues with them recently as well.The other thing I've noticed recently is the cold map idle is lower than it should be. It was mapped to be 1500rpm on cold map dropping to 1250rpm on the normal map whereas it's now idling at 1300rpm on start up and slowly rising to 1400rpm, which is odd. ________________________________________ Rallye Race Car |
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Posted 17th Jul 2017 at 15:57
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,871 Status: Offline |
Post #40
shouldn't need to idle like that with a standard engine, even my 2.2 doesn't!iffy tps and any slight vac leak or mixture variance to when it was mapped can/will do that though. ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 17th Jul 2017 at 16:31
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demondriverdan
Seasoned Pro Location: Londinium Registered: 29 Nov 2010 Posts: 2,665 Status: Offline |
Post #41
We didn't spend much time on idle mapping as it doesn't make a big difference on the race car. I'd rather the time be spent mapping it at the rev range that's useful than idling!TPS I'm hoping to replace and vac leak is certainly possible. I was planning on replacing all the pipework for the vac stuff anyway so will make that a priority. ________________________________________ Rallye Race Car |
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Posted 17th Jul 2017 at 17:32
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Day666
Seasoned Pro  Location: Bristol Registered: 20 Apr 2013 Posts: 5,214 Status: Offline |
Post #42
Good Luck Dan  |
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Posted 17th Jul 2017 at 19:22
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fatlapit
Seasoned Pro Location: STOCKSFIELD Registered: 02 Nov 2010 Posts: 3,040 Status: Offline |
Post #43
Bloody omex are the bain of my life. Buggers cost me a fortune after another failure________________________________________ |
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Posted 17th Jul 2017 at 22:05
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demondriverdan
Seasoned Pro Location: Londinium Registered: 29 Nov 2010 Posts: 2,665 Status: Offline |
Post #44
More of an update. I changed the TPS and have re-done the vac pipes so it goes straight from the vac pump to the servo with a small cap over the inlet manifold take off, none of that has made a difference. It's still idling lower than it should be when cold and slowly climbing up.The other thing I've noticed is a weird "tink"-ing noise from the engine, you can hear it here at the beginning of the video: https://www.youtube.com/watch?v=ra01b5tfR5k ________________________________________ Rallye Race Car |
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Posted 1st Aug 2017 at 10:03
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