Hi. Excellent video as usual. Can I just ask re deck height, what is it (or should it be) on this engine and piston combination. I ask as I'm fitting exactly the same piston and liner set on a stock 2ltr CU so should be plug an play, but I'm only getting 0.3mm deck height, which seems to contradict most sources that say should be 1mm-2mm! However, I'm not sure if that is for a flat piston, and in fact 0.3mm deck height is OK for dished piston heads like these are. Any help appreciated. Thanks
Hello, 0.3 seems ok as you are using dished pistons. On the AA pistons website there is an engine calculator. Don't forget to fit the decompression rings between barrels and heads.. Cordialement,
No need to set deck heights ? I had a issue with a 1.8 every so slightly kissing the head under load 😢 sounded awful but I learnt my lesson on checking them lol
Hi, enjoying the build videos as I build my first engine a 2.0 CJ And have a few questions. I have AA pistons and barrels with AMC heads, is it possible to fit hydraulic followers from a CU into the CJ and if so what parts from the CU would I need? Regards Paul
Hello, The CJ engine was available on later bays. Before '79 the cylinder heads have oval exhaust ports. Changing to hydraulic cam followers is possible, but you will have to check the pushrod lengths. Frankly, if the cam lobes are in good condition, I would be tempted to stick with the solid followers, and accept the valve clearance checking. At least you will not have to worry about the cam followers draining down so the engine rattles on start up until they pump up. Cordialement,
@@sarran1955 thank you for the response, I will stick to the originals as you suggested. Would you happen to know what the deck height should be for the cj motor? and also do I need to use the top cylinder head gasket/seal rings with the amc heads or do I just lap the barrels in? Regards
@@paulmarshall1226 Hello, Does the engine have dished or flat pistons? Use a new set of decompression rings for the head every time. This does not stop you from lappin in first to get a better seal. Cordialement,
@@paulmarshall1226 Hello, So you have a low compression engine. Nothing to be gained by tweaking the deck heights. H=1.5 mm approx. Make sure you use top and bottom spacers..as supplied in the Victor Reinz full gasket set... Cordialement,
Hello, Pistons and cylinders direct from AA performance products in USA, valves and guides are Swiss, gasket set is German. EU sourcing from Serial Kombi.fr Hope this helps. Cordialement,
Why did you go only for a top end rebuild instead of a total rebuild? I'm asking because I went to a mechanic (VW Evolution, Salisbury area) 2 years ago and suggested only a top end rebuild and then after all the work the engine lasted only 7000 miles more, leaving me with a total rebuild to be done only after 6 months.
Hello, Top end rebuild option taken as there was plenty of oil pressure and no end float. The owner is looking for a spare motor to rebuild at leisure. Cordialement,
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Hi. Excellent video as usual. Can I just ask re deck height, what is it (or should it be) on this engine and piston combination. I ask as I'm fitting exactly the same piston and liner set on a stock 2ltr CU so should be plug an play, but I'm only getting 0.3mm deck height, which seems to contradict most sources that say should be 1mm-2mm!
However, I'm not sure if that is for a flat piston, and in fact 0.3mm deck height is OK for dished piston heads like these are.
Any help appreciated. Thanks
Hello, 0.3 seems ok as you are using dished pistons. On the AA pistons website there is an engine calculator. Don't forget to fit the decompression rings between barrels and heads..
Cordialement,
No need to set deck heights ? I had a issue with a 1.8 every so slightly kissing the head under load 😢 sounded awful but I learnt my lesson on checking them lol
Hello, not an issue with standard parts and gaskets,
for a deck test demo please look at 1600 to 1700.
Cordialement
sarran1955 the parts I got where probably of poor quality
@@ep82chris Hello, I use pistons and barrels from AA performance in the USA, valves, guides and gaskets come from EU.
Cordialement,
Hi, enjoying the build videos as I build my first engine a 2.0 CJ And have a few questions. I have AA pistons and barrels with AMC heads, is it possible to fit hydraulic followers from a CU into the CJ and if so what parts from the CU would I need?
Regards Paul
Hello, The CJ engine was available on later bays. Before '79 the cylinder heads have oval exhaust ports. Changing to hydraulic cam followers is possible, but you will have to check the pushrod lengths. Frankly, if the cam lobes are in good condition, I would be tempted to stick with the solid followers, and accept the valve clearance checking. At least you will not have to worry about the cam followers draining down so the engine rattles on start up until they pump up.
Cordialement,
@@sarran1955 thank you for the response, I will stick to the originals as you suggested. Would you happen to know what the deck height should be for the cj motor? and also do I need to use the top cylinder head gasket/seal rings with the amc heads or do I just lap the barrels in?
Regards
@@paulmarshall1226 Hello,
Does the engine have dished or flat pistons?
Use a new set of decompression rings for the head every time. This does not stop you from lappin in first to get a better seal.
Cordialement,
@@sarran1955 it has dished pistons
@@paulmarshall1226 Hello,
So you have a low compression engine. Nothing to be gained by tweaking the deck heights. H=1.5 mm approx. Make sure you use top and bottom spacers..as supplied in the Victor Reinz full gasket set...
Cordialement,
Hi love watch you working on engine can I ask were do you get all the parts from for 2 litres c u aircooled
Hello,
Pistons and cylinders direct from AA performance products in USA, valves and guides are Swiss, gasket set is German.
EU sourcing from Serial Kombi.fr
Hope this helps.
Cordialement,
Why did you go only for a top end rebuild instead of a total rebuild? I'm asking because I went to a mechanic (VW Evolution, Salisbury area) 2 years ago and suggested only a top end rebuild and then after all the work the engine lasted only 7000 miles more, leaving me with a total rebuild to be done only after 6 months.
Hello,
Top end rebuild option taken as there was plenty of oil pressure
and no end float. The owner is looking for a spare motor to
rebuild at leisure.
Cordialement,
@@sarran1955 great thanks! That seems more than a spare motor...:)