~ How to install Cosworth MX1 cams, springs, and head gasket! ~

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Mar 25, 2010, 02:33 PM

#16

mlomker

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Quote:

Originally Posted by Guru

Be VERY careful when torquing down the large cam cap that goes across both cams. VERY easy to snap in two

+1. A pro mechanic snapped mine the other day. I'm going with a new Cosworth head but that's a $1k error not to mention having to pull the head.

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Mar 26, 2010, 11:08 AM

#17

hollywood_X

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Quote:

Originally Posted by Guru

Be VERY careful when torquing down the large cam cap that goes across both cams. VERY easy to snap in two and you can not buy a new one from Mitsu!!! Beware! I had to buy a new head since I must have not aligned bearings correctly when I was torquing down to measure the valve clearance. At least taking this chance to fully port it so not a total loss but what a pain!!!

Quote:

Originally Posted by mlomker

+1. A pro mechanic snapped mine the other day. I'm going with a new Cosworth head but that's a $1k error not to mention having to pull the head.

So note to everyone doing this;
Be sure to check that dowel pins are seated before attempting to torque!

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Sep 30, 2010, 02:16 PM

#18

MACKLIN

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Hey the link is not working and could this be applied to any cam and springs

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Jan 29, 2011, 10:12 PM

#19

03chi-town0Z

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Quote:

Originally Posted by hollywood_X

There will be one more coming that is more for those who aren't doing springs or head gasket, it will be about half as long and won't have to cover near as many items so stay tuned for that one.

Any luck with this? I've picked up a set of the Tomei Poncams and won't be doing the head gasket, and likely not springs, with them. Though I'm kind of undecided on the spring situation since it's a really mild cam and my peak rpm is only 72xx, but it is my daily and I'd hate to have major issues. Either way, it would be much easier with a write-up similar to the mx1's that you've done.

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Sep 23, 2011, 10:03 AM

#20

3dman1

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ttt

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Sep 29, 2011, 03:45 PM

#21

novaspyder87

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i broke that bar that we call a CAM CAP!!! ams are selling those now for like 300$ BUT you have to make it machined at a shop so the total cost is like 600$ or around that!!! so if you break the cam cap..... buy a complete new head from cosworth!!! do not putt that broken cam cap in place!!! youre going to have to buy a complete new engine lol GREAT WRITE UP!! its exactly what ive done a couples months ago

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Oct 12, 2011, 02:28 PM

#22

Rmeister007

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I'm a noob. Can I do the cam upgrade without tuning it? I'm guessing the answer is no....

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Mar 18, 2012, 05:50 PM

#23

FAIL

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Did you ever end up making another How to for just cams Hollywood ?

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Mar 21, 2012, 06:05 PM

#24

BIGLOU58

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nice write up but i think i will let some else do it

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Mar 21, 2012, 07:29 PM

#25

hollywood_X

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Quote:

Originally Posted by FAIL

Did you ever end up making another How to for just cams Hollywood ?

No, once I started looking into that it became increasingly more clear that if you upgrade cams you need to upgrade springs.

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Feb 1, 2014, 01:40 PM

#26

lanasa

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I have ARP Head Studs on my block. When I went to remove all of the nuts they all came out fine except for the 2 on the left side close to the timing chain. Is there a special 13 mm socket need to remove these?? I cant get down in there with the normal 13 mm socket I have.