cam.in.head Posted January 29 Share Posted January 29 in the past i have added extra length to a tensioner to put me on with a worn chain until i got chance to put a new chain on ! Quote Link to comment Share on other sites More sharing options...
Nivlek2525 Posted January 29 Author Share Posted January 29 10 hours ago, H-400 said: Above the tool used by Opel shops to check the chain/ tensioner/guides. Screw the tool in the timing house and screw the piston until the chain has got his tension. Measure the distance X . Measure the same distance on your chain tensioner and it must be at least 2mm longer than X. If less the chain is stretched. In the same text they mention you can fix that problem by cutting of the contactsurface on a lathe, but I'm not a fan of this. I would fit a new chain with new guides. The tool looks to be made of an old used tensioner but I used once a long bolt with a nut & washer, works fine Hi Herman. That's really useful thanks. I did this although not very accurately at the weekend and found it to be too short. I will try again to try to get a more accurate measure just for interest but I have a new chain on the way so will be fitting it afterwards. I think I'll take a measure once new chain is installed as a datum to check o. Wear in the future. Regards K. 7 hours ago, cam.in.head said: you CAN change a cam with the head on but it means removing one ormore headbolts but i dint think there will be anything wrong with your cam . it sounds like you have definately got a stretched chain ( or tensioner arm worn out !) so a new chain should sort it. dropping the sump is the only real way to get the timing casing back on with the head in place but you will need to remove the locating dowels to allow it to go in and up ,tightening the two 6mm allen bolts in the head to pull it up in place whilst / along with the front ones to align it and get the dowels back in Thanks for this. I think I have another head gasket somewhere but I don't have spare inlet/exhaust gaskets or down pipe gasket. I'll try to leave head in place but if I struggle I'll just take it off again. It makes confirming tdc a little easier anyway. Quote Link to comment Share on other sites More sharing options...
Jessopia74 Posted January 29 Share Posted January 29 TDC flywheel marker is as accurate as your likely to need. Front pulley is not one I would be going for. Idont forget to set distributor rotor ram to the marking too (pic is Bosch disi, but not on CIH, but marking is same Quote Link to comment Share on other sites More sharing options...
cam.in.head Posted January 29 Share Posted January 29 exactly. the flywheel ball and rivet are dead on TDC with the pointer being the timing mark itself. theoretically TDC means camshaft top bolts level .( but as mentioned they rarely are !) Quote Link to comment Share on other sites More sharing options...
Nivlek2525 Posted January 31 Author Share Posted January 31 (edited) On 29/01/2024 at 09:25, H-400 said: Just a quick update and comparison photos for interest. New chain arrived from Andy (thanks Andy!) 4 minutes ago, Nivlek2525 said: Just a quick update and comparison photos for interest. New chain arrived from Andy (thanks Andy!) Hopefully I'll get it all back together on Friday (day off) and hopefully everything will be a bit quieter...... Thanks all. K. Edited January 31 by Nivlek2525 Error 2 1 Quote Link to comment Share on other sites More sharing options...
Jessopia74 Posted February 1 Share Posted February 1 6 hours ago, Nivlek2525 said: Just a quick update and comparison photos for interest. New chain arrived from Andy (thanks Andy!) Hopefully I'll get it all back together on Friday (day off) and hopefully everything will be a bit quieter...... Thanks all. K. Visible difference there 👍 Quote Link to comment Share on other sites More sharing options...
Nivlek2525 Posted February 2 Author Share Posted February 2 (edited) So... The GOOD news. New chain on. All timed up perfectly. Runs lovely and the industrial sewing machine noise is totally gone. https://photos.app.goo.gl/oZGwCLPqDnPWxAkC7 The video doesn't do it justice as it still sounds very metallic but it's not much different to my mk1 mx5 so I'll take that. Revs lovely and freely. Exhaust note is just on the acceptable side of boy racers. https://photos.app.goo.gl/C9QnFwJtEicPwKCr7 But I quite like it. So happy days? Not quite. It was bone dry, but now I have an unacceptable oil leak from between the chain cover and the head. I should have pulled the cylinder head this morning and saved a days messing about. https://photos.app.goo.gl/L91ooRxcp7CW88NZ7 So I need to get a few gaskets together and pull it all a part again. 1 step forward... Edited February 2 by Nivlek2525 Typos 2 Quote Link to comment Share on other sites More sharing options...
611 Posted February 2 Share Posted February 2 1 hour ago, Nivlek2525 said: So... The GOOD news. New chain on. All timed up perfectly. Runs lovely and the industrial sewing machine noise is totally gone. https://photos.app.goo.gl/oZGwCLPqDnPWxAkC7 The video doesn't do it justice as it still sounds very metallic but it's not much different to my mk1 mx5 so I'll take that. Revs lovely and freely. Exhaust note is just on the acceptable side of boy racers. https://photos.app.goo.gl/C9QnFwJtEicPwKCr7 But I quite like it. So happy days? Not quite. It was bone dry, but now I have an unacceptable oil leak from between the chain cover and the head. I should have pulled the cylinder head this morning and saved a days messing about. https://photos.app.goo.gl/L91ooRxcp7CW88NZ7 So I need to get a few gaskets together and pull it all a part again. 1 step forward... That's great news, glad the chain sorted it. The old CIH do sound a bit industrial https://www.theopelproject.com/engine-all-setup/ Have you checked its not the rocker cover gasket leaking? as i have an ally rocker cover and had lots of problems with the cork gasket on mine the second time around, so swapped to the rubber one and had no issues at all after that. Andy 1 Quote Link to comment Share on other sites More sharing options...
Nivlek2525 Posted February 2 Author Share Posted February 2 27 minutes ago, 611 said: That's great news, glad the chain sorted it. The old CIH do sound a bit industrial https://www.theopelproject.com/engine-all-setup/ Have you checked its not the rocker cover gasket leaking? as i have an ally rocker cover and had lots of problems with the cork gasket on mine the second time around, so swapped to the rubber one and had no issues at all after that. Andy Hi Andy, Yes, chain sorted the horrible sound out so I'm chuff overall but I need to sort that leak. No, it's defo coming from between the head and chain cover. I nipped up the two long bolts that go through the head and that helped but its still leaking. Now the cam is all timed up and the hydraulic tappets set its not a big job. If I can find my spare head gasket I might get it done tomorrow. K. Quote Link to comment Share on other sites More sharing options...
611 Posted February 2 Share Posted February 2 2 hours ago, Nivlek2525 said: Hi Andy, Yes, chain sorted the horrible sound out so I'm chuff overall but I need to sort that leak. No, it's defo coming from between the head and chain cover. I nipped up the two long bolts that go through the head and that helped but its still leaking. Now the cam is all timed up and the hydraulic tappets set its not a big job. If I can find my spare head gasket I might get it done tomorrow. K. Hi Kelvin At lest you have solved the main issues, the oil leak should be reasonably easy 🙂 Andy Quote Link to comment Share on other sites More sharing options...
Nivlek2525 Posted February 2 Author Share Posted February 2 9 minutes ago, 611 said: Hi Kelvin At lest you have solved the main issues, the oil leak should be reasonably easy 🙂 Andy Exactly. 🤞 Quote Link to comment Share on other sites More sharing options...
Nivlek2525 Posted February 3 Author Share Posted February 3 11 hours ago, 611 said: Hi Kelvin At lest you have solved the main issues, the oil leak should be reasonably easy 🙂 Andy Exactly. 🤞 https://photos.app.goo.gl/owsCcHjfUAFbfh479 Well, I've found the problem. 1 Quote Link to comment Share on other sites More sharing options...
Jessopia74 Posted February 3 Share Posted February 3 Oil feed to head? Did you remember to put the rubber seal back in place? Quote Link to comment Share on other sites More sharing options...
Nivlek2525 Posted February 3 Author Share Posted February 3 2 hours ago, Jessopia74 said: Oil feed to head? Did you remember to put the rubber seal back in place? Just now, Nivlek2525 said: No, I remembered that. I just managed to push the gasket inside the chain cover because I was being stupid. I think it's fixed now.....hopefully. 2 Quote Link to comment Share on other sites More sharing options...
cam.in.head Posted February 4 Share Posted February 4 wow .whats the chances of that happenning ? however at least you have found it and you can now replace the gasket and fit it like it was realy intended to be done . and great that its all quiet now. the chain was quite badly stretched. ! 1 Quote Link to comment Share on other sites More sharing options...
Nivlek2525 Posted February 4 Author Share Posted February 4 https://photos.app.goo.gl/QtDJc7WruZhGjPd6A Fixed. Idle a little high but otherwise OK. Up to temperature. No leaks so far. Sounds much better. Engine bay a disaster area and so is the garage but that's next weekends job. Thanks all. 1 Quote Link to comment Share on other sites More sharing options...
611 Posted February 4 Share Posted February 4 1 hour ago, Nivlek2525 said: https://photos.app.goo.gl/QtDJc7WruZhGjPd6A Fixed. Idle a little high but otherwise OK. Up to temperature. No leaks so far. Sounds much better. Engine bay a disaster area and so is the garage but that's next weekends job. Thanks all. Sounding good. My garage is a bit like that with bit of Fiat all over the place and in the way of the Opel 🙂 1 Quote Link to comment Share on other sites More sharing options...
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