Mgbgt Autocrosser engine progress with cylinder head checks and measurements

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The cylinder head for my MGBGT Autocrosser is back! After the head came back from the machine shop, we took a closer look at it and ended up doing some additional porting off camera to further clean up some areas then talk about what we ended up doing before we look at how much clearance were going to need to have for the valves (the “eyebrow” cutouts it the tops of the cylinder bores) and do some measuring to find out if we have enough. With the cam we installed, and the amount the head has been shaved, this is critical to not have the valves hit the edge of the cylinder walls, and also for airflow around the valve.
We also go through the process of checking the volume of the combustion chambers after having the valve job touched up and replacing the exhaust valves to see how much that volume may have changed.

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1 окт 2024

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Комментарии : 2

@americanpatriot2422 5 месяцев назад

Always an outstanding video and presentation.

@rscruiser3533 5 месяцев назад

Thank you for pointing out that the timing chain cover could very well be pushed in enough after putting the seal in that it would rub on the oil slinger ----- and for the Tip on before tightening down the cover to put the crankshaft pulley on which will center the cover not to be tight on one side of the seal and leak or wear out quicker -------- Got a Question ---- I want to do my own block -- hopefully just re-ring and new bearings --- in the cleaning of the block --- especially the oil passages --- are the PLUGS that cap off some of those passages available? --- I don't want to be knocking them out and can't find a replacement ---- I wish I was a little younger and not so many projects --- Had a chance today to get a '56 MGA for $600.00 -- no engine --- Hope someone will make good use of her ----- Thank You again --- Hope you have a Good Week ---- Rodney