timing cams

[slimwiltaz]

hey, when the mapper is timing my cams (cat cams 743) will he have to remove the cam covers? does anybody know how they do it :D

[Tom5190]

Have you fit them on standard marks? You using standard pulleys or aftermarket verniers?

We usually time then in to the correct settings before the see any mapping but it can be tweaked on the RR you will need the outer cover off

[slimwiltaz]

there just put on standard pulleys and standard marks :D

[jeffchiz]

there just put on standard pulleys and standard marks :D

my 708's were on std timing marks and pulleys, and i left the covers off had them timed in just before i went to the mapping session

[Tom5190]

there just put on standard pulleys and standard marks :D

ah ok mate well its abit more involved timing them in properlly and adjusting if you have standar pulleys. You need them on the correct timing settings to make the best power. My 743's were set to the catcam recommendations and fiddling with them on the RR didnt ever make any more power.

[slimwiltaz]

ah i see. well its booked in for Tuesday with automarc at Stokesley, im not clued up on it but he said he will map it and set the timing so will be in his hands, be interesting to see :D

[blackie_2k5]

Just remove the cover and he"ll adjust them for best power mate :y:

Some ppl cut large holes in the outer cover with a hole saw so they can be easily adjusted if need be.. But normally have aftermarket pulleys to show off lol

Not really worth the aggro if your not gonna be playing with them regular lol

[blackie_2k5]

Just remove the cover and he"ll adjust them for best power mate :y:

Some ppl cut large holes in the outer cover with a hole saw so they can be easily adjusted if need be.. But normally have aftermarket pulleys to show off lol

Not really worth the aggro if your not gonna be playing with them regular lol

[slimwiltaz]

Just remove the cover and he"ll adjust them for best power mate :y:

Some ppl cut large holes in the outer cover with a hole saw so they can be easily adjusted if need be.. But normally have aftermarket pulleys to show off lol

Not really worth the aggro if your not gonna be playing with them regular lol

so will he remove it, cut it, or will he expect me to have it off for him? all he said on the the phone is hell time them and map it :wacko:

[blackie_2k5]

Just take it with cover off and ready mate, he wouldn't cut it no, he may remove it but it's just more time wasted, so best just have it off ready as it'll need I come off regardless :y:

[slimwiltaz]

Just take it with cover off and ready mate, he wouldn't cut it no, he may remove it but it's just more time wasted, so best just have it off ready as it'll need I come off regardless :y:

ah rite should i take it off before i drive there? will it be ok to drive 40 mile with it off yeah? also is it easy to remove i aint clued up. just the cam ladder case yeah

[jeffchiz]

so will he remove it, cut it, or will he expect me to have it off for him? all he said on the the phone is hell time them and map it :wacko:

As tom said he should map them to the recomended degrees and then map, don't be worried its how its done, most people ask for the putter cover to ne removed but if he hasn't asked then dont worry unless you wanna do it anyway to save time

[jeffchiz]

ah rite should i take it off before i drive there? will it be ok to drive 40 mile with it off yeah? also is it easy to remove i aint clued up. just the cam ladder case yeah

I drove for months with no cover, its about three bolts at the top and two or three by the alternator belt bit of a squeeze to get it past the engine mount, what do you mean by the cam ladder case?

[slimwiltaz]

i mean the black case near the the alternator that sits beside the cam covers? is that the case that needs removed? i thought it was a cam ladder case :oops:

[jeffchiz]

i mean the black case near the the alternator that sits beside the cam covers? is that the case that needs removed? i thought it was a cam ladder case :oops:

the cam belt cover its called lol and its just the outter part you remove

the cam ladders are the bit of metal that bolts down to the head holding the cams in

[slimwiltaz]

the cam belt cover its called lol and its just the outter part you remove

the cam ladders are the bit of metal that bolts down to the head holding the cams in

ah i see :P well i may as wel remove it for him, ifs its going to be easier for him

[slimwiltaz]

just spoke to the guy who's doing the job, he has asked me to remove the cover. also said i will get a before and after print out so will have a graph to put up soon :D

[slimwiltaz]

im going to attempt to remove the case of the cam belt. can anybody talk me through it? also does the engine mount have to come out or is there a way of getting the case of with out taken the mount off? also it is just the outer case that has to come off for the cams to be timed in? much appreciated :)

[jeffchiz]

im going to attempt to remove the case of the cam belt. can anybody talk me through it? also does the engine mount have to come out or is there a way of getting the case of with out taken the mount off? also it is just the outer case that has to come off for the cams to be timed in? much appreciated :)

Yes as said just the outter cover needs to be removed, you cant get the inner cover off with out removing a lot of parts, the engine mount doesn't have to come off can force it past
but be careful

[slimwiltaz]

Yes as said just the outter cover needs to be removed, you cant get the inner cover off with out removing a lot of parts, the engine mount doesn't have to come off can force it past
but be careful

ok cool, can i have a rough idea of were the screws are that have to come out?

[Tom5190]

2 10mm's down the bottom near the crank pulley, need to be lose the dont have to come all the way out, one slightly up from there towards the rear of the engine, then its 3 alan key bolts around the top and iirc there 5-6mm??

[slimwiltaz]

cheers pal, ill give it a look :D

[unreal106]

Out of interest what are the cat cam 743 cam recommend timing settings ?

[welshpug]

Www.catcams.co.uk

[unreal106]

They don't have details on there site of the 743 at all and kam don't spec the timing so any one to help?

[blackie_2k5]

Best of ringing them

Although I've heard they canbe pretty shit to deal with over the phone

[Cam]

Out of interest what are the cat cam 743 cam recommend timing settings ?

I would like to know this also :)

[unreal106]

Ok i will try this it's just surprising how a few people have them fitted now but still no info from users as to how they timed there cam up

[Cam]

Ok i will try this it's just surprising how a few people have them fitted now but still no info from users as to how they timed there cam up

Mine are just on standerd timing marks rums a but lumpy and dies once in a while useable though, but it would good to know the best timing for them :)

[Tom5190]

Catcam's havnt listed a 743 on there site however the sheet you get with them has the same timing as the 708's

http://www.catcams.be/800x600/mainframe.htm?english

Edit: that link only takes you to home page you can find the TU5J4 in the listing.

clearance [cl] 0.00mm 0.00mm
duration [0.1mm+cl] 256° 256°
duration [1.0mm+cl] 230° 230°
valve lift [cl=0] 10.00mm 10.00mm
REQUIRED PARTS
cam lift - -
peak angle 110° 106°
followers: O.E.M.
timing [1.0mm+cl] 5/45° 41/ 9° retainers: O.E.M.
lift at TDC [cl=0] 1.55mm 2.00mm


Thats basically the info copy and pasted.