We are going to transplant these to camshafts from the 1.3 engine into the 1.0 engine of our Micro Mica project.
Some measurements shows that this is going to work quite easy without to much fuzz.
And no , there wont be bent valves or anything after we`re finished.
So then , lets go straight to the point :
Changing over the 1,3 camshafts to the 1.0 engine is not that complicated at all and I will show a rough way to how to do it.
( First check all your valve clearanceses before doing anything . Use a Haynes manual or likewise )
First you place your cylinder no 1 in TDC ( top dead center ) and then the camshafts will look like this in the cylinderhead:
Made some reference marks that you can see at the 2 bottom lower circles and note how the camshafts lobes are positioned in the upper 2 blue circles.
In that way you have some additional reference marks when you put them into the 1 liter engine.
You can make similar markings on your 1.0 liter before you rip them out.
Down at the lower crank pulley you will see the corresponding markings for the right position here at the blue circle
After that you will detach the 2 pc of 12 mm ( head measurement)at the dizzy and just push it out about 10 mm.
( blue circle )
You can mark the 2 cam sprockets as i did and you have even more references of how to put stuff back together( red lines )
When that is done , loosen the 2 pc of 22 mm bolt-heads in front of the camshafts at their sprockets
You can hold the camshafts by the 6-points marked with blue circle.
The chain tensioner is next and you can detach that by unscrewing the 10 mm bolts.
You can access it by removing the left front engine mount and removing the front cover of the engine.
Just compress it gently together when you take it out.
Now you can remove completely the pair of 22 mm bolts at the sprockets.
Then you detach all of the camshafts carriers
Keep track of them and have them in a orderly manner on your bench.
If we take a closer look you can se the mechanical lifter buckets that transfer the camshafts lift onto the valve stems.
You can also see the lifter bucket shims that takes care of the right valve clearance.
The 2 camshafts of the 1 liter engine is now out and I have just machine washed them nice and clean.
Lets have a look at the 2 pairs of camshafts and compare a little bit just for fun.
Inletcams in compare ; 1.0 to the left and 1,3 to the right.
Bring out a caliper and you will find out that there is difference in lift
1,3 camshaft
1.0 Camshaft
2 mm more lift on the 1,3 then…
Good stuff , more is better , right ?
Ok , then we just put the ripped 1,3 camshafts into the 1 liter then:
Assemble all in reverse with a check of all our previous marked details for control of putting everything back on right.
The tensioner just screws back into its housing so that it will go back into its lowest position so that you can put it in again.
Covers and everything back to where it were before
The valve clearences will need to be checked to 0,40 mm at both sides to make sure everything is ok.
Note ; if everything, regarding clearences is ok with your own 1 liter engine , then it is almost 99 % for certain that the clearences that you had will do for the new 1.3 liter camshafts.
I have done more then 20 changes and NEVER needed to change the shims on any of them so far with this procedure.
Then everything is in place
More runs on the Dynapack will now follow and todays quiz is :
DID THAT HELP OUT ON POWER AND IF IT DID HOW MUCH ?
Back with more soon….