New to the mechanical realm!

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Blake Wally

New member
Hey guys first time poster here. Have a couple questions about my truck. Im new to the mechanical world. Im trying to check the current timing in the pump and I've tried to find the info that im looking for. I've inserted the dial indicator into the delivery valve holder. Once i am at tdc i move the engine cc until the dial indicator drops. When i move it back to tdc ive calculated that i got 8.5 mm of lift. Which is a ridiculous number when referencing the lift chart. My question is do i convert the 8.8mm to degrees and that tells me what the pump is at currently or do i pin the pump first since it is advanced a tad then bring it to tdc and check the plunger lift? I was at it for awhile last night and was confused on why i was getting 8.5 mm. Any insight will help please. The pump is a 215 pump also.
 
Blake Wally said:
Hey guys first time poster here. Have a couple questions about my truck. Im new to the mechanical world. Im trying to check the current timing in the pump and I've tried to find the info that im looking for. I've inserted the dial indicator into the delivery valve holder. Once i am at tdc i move the engine cc until the dial indicator drops. When i move it back to tdc ive calculated that i got 8.5 mm of lift. Which is a ridiculous number when referencing the lift chart. My question is do i convert the 8.8mm to degrees and that tells me what the pump is at currently or do i pin the pump first since it is advanced a tad then bring it to tdc and check the plunger lift? I was at it for awhile last night and was confused on why i was getting 8.5 mm. Any insight will help please. The pump is a 215 pump also.
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You roll the engine from tdc counter clockwise till the dial indicator stops moving. Zero the indicator and then roll the engine clockwise back to tdc. Read the indictor. Every full rotation on the indicator is normally 2mm unless your indicator is in thousandths.
 
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DISTURBED said:
You roll the engine from tdc counter clockwise till the dial indicator stops moving. Zero the indicator and then roll the engine clockwise back to tdc. Read the indictor. Every full rotation on the indicator is normally 2mm unless your indicator is in thousandths.
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Thats what i did and i ended up going from 5 0 to 13.5mm. Idk if im missing something or what man. I got a very good grasp on what i need to do it just doesnt make sense to me. Unless the pump is really at that timing but for me its hard to believe.
 
Give up on plunger measurement.

Make an absolute TDC Mark on the balancer, then pin the pump. Assuming its still pin timed stock being a 215 pump, you can assume that's 12 to 13* or close.

Then advance or change timing from there, measuring the degrees off the balancer.
 
When I said stock 215 pump, even if its had the timing advanced already, I bet it's still "pin timed" at around 12*.

Then base your tdc on the balancer from there.
 
jasonc said:
Give up on plunger measurement.

Make an absolute TDC Mark on the balancer, then pin the pump. Assuming its still pin timed stock being a 215 pump, you can assume that's 12 to 13* or close.

Then advance or change timing from there, measuring the degrees off the balancer.
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Thats gonna be my plan i think Jason, that way i know what the timings at. I have a tdc mark i made already. Thank you all for the responses. What would be a good start for timing on a 24 ppump? Its got a 66 on it.
 
jasonc said:
When I said stock 215 pump, even if its had the timing advanced already, I bet it's still "pin timed" at around 12*.

Then base your tdc on the balancer from there.
Click to expand...
Also its just a street truck i like to have fun with on the weekend, i just want to make some good power with. Who or where do you recommend getting a degree wheel? I seen power driven diesel has one
 
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