76
General Discussion Area / Re: Word Association.
« on: 23 April 2023, 17:13:42 »
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77
Omega General Help / Re: breathers.
« on: 22 April 2023, 15:28:12 »
Concerning the two smaller spigots on the breather bridge. Looking from the front of the engine with the bridge mounted then the right hand small spigot connects to the carbon canister mounted in the wing via the purge valve. The left side small spigot connects to the small spigot on the breather box on the back the head. Same breather box that the bigger Y hose connects to.
So I would imagine that you can plug the purge connector spigot if the carbon canister / purge system is not installed. However I suspect you may need the one for the breather box.
So I would imagine that you can plug the purge connector spigot if the carbon canister / purge system is not installed. However I suspect you may need the one for the breather box.
84
Omega General Help / Re: Issue with timing belt marks
« on: 18 April 2023, 13:11:43 »
For the belts with two sets of marks. The white marks are for engines where the lower idler roller is immediately above the crank pulley. For later engines with the lower roller slightly higher and offset towards the nearside, you would use the yellow marks. Usually the belts have double yellow crank marks and single yellow crank marks for cam sprockets 1 and 2, so for the later engines you would use the yellow marks and the remaining white marks for cams 3 and 4. There shouldn't be yellow marks for cams 3 and 4 on the belt, so it's important to observe the correct rotation when mounting the belt.
Usually the later engines have a lower idler pulley without eccentric adjustment. The earlier engines do have the eccentric adjustment for the lower idler pully. Given that Gates part number XS035453XS is being fitted then it should include a new non-eccentric idler roller and the required screw.
Regardless of the engine type or the backplate and tensioner and idlers that are fitted then all the belts have the same construction, length, tooth pitch and number of teeth. Just that old stock belts might not have any yellow marks.
In any event you don't need the marks on the belt and probably shouldn't rely on them. Rely on the timing gauge.
Usually the later engines have a lower idler pulley without eccentric adjustment. The earlier engines do have the eccentric adjustment for the lower idler pully. Given that Gates part number XS035453XS is being fitted then it should include a new non-eccentric idler roller and the required screw.
Regardless of the engine type or the backplate and tensioner and idlers that are fitted then all the belts have the same construction, length, tooth pitch and number of teeth. Just that old stock belts might not have any yellow marks.
In any event you don't need the marks on the belt and probably shouldn't rely on them. Rely on the timing gauge.
85
General Discussion Area / Re: Help required with daughters degree (short survey)
« on: 18 April 2023, 04:55:22 »
Survey done. I remember my daughter creating a survey when she was a student. Can't remember what the survey was about.
90
Omega General Help / Re: interfaz scanner para Omega 4.1 mpfi ecu Motronic 2.8.1
« on: 24 March 2023, 14:55:06 »
Seems to be a curious beast. The car looks to be a Chevrolet Omega made in Brazil, the first generation of which were manufactured until 1998 and were based on the Omega A. Unless I'm mistaken it has a 4.1L straight six Chevrolet engine. And also uses the Bosch Motronic 2.8.1 ECU used on the V6 Omega B, not the earlier version used on the 6 pot Carlton and Senators. And it has an ALDL diagnostic port.