Anyway, back to today, I pulled the new frankenpump V2 off yesterday and along with old frankenpump V1.3, I built and almost fitted franken pump V1.4.
It was very quickly obvious that the donor 6 pot pump is not a viable option for a base to start from. It could have actually been catastrophic if it would have started but because of the drama inside, I couldn’t have started if it wanted to. I took the head off and found this: it’s a pin that seats the rollers in the carrier. It’s not supposed to be there...... ignore the dirt. The new pump was built clean. Basically the housing has an opening for the original spec cold start advance rather than low down like the T4’s. I completely overlooked this when I built it so it had room to fall out and the roller was moving around and providing its own extra and random areas of pump lift. Total schoolboy error but a good learning curve.
So I built V1.4 with the following:
2.4d base pump housing
2.4d 17mm shaft, pulley and vane pump
2.4d governor flyweight assembly
2.4d advance piston and cold start advance
Volvo 2.5 Tdi D5252T:
11mm pump head
Camplate
Modified roller carrier to accept flyweight gear and central area to allow for IDI pump dimensions to allow full 2.49mm lift (issue with V1.0 (4 rollers used)
Pressure relief valve
Dynamic advance spring, cap and shims
Vauxhall frontera 2.3td LDA lid
Modified Land Rover 300 Tdi Fulcrum lever to allow for more travel required in a DI
I think that’s it all pretty much covered in terms of parts used. I’ve fitted the pump to the van but lost light. I was rushing (I’d reindexed the throttle lever with the LDA lid on so had to do it again) so thought I’d timed it up to +1.20 but I hadn’t checked the cold start lever which was out so the timing will be around +1.00. No worry though as I could just about get it to run at that before and I can adjust it back up to as far as the old +1.54 on the slots so I should be on the home stretch now. Just need to prime and bleed it and it’s a first attempt at a fire of frankenpump V1.4!
It was very quickly obvious that the donor 6 pot pump is not a viable option for a base to start from. It could have actually been catastrophic if it would have started but because of the drama inside, I couldn’t have started if it wanted to. I took the head off and found this: it’s a pin that seats the rollers in the carrier. It’s not supposed to be there...... ignore the dirt. The new pump was built clean. Basically the housing has an opening for the original spec cold start advance rather than low down like the T4’s. I completely overlooked this when I built it so it had room to fall out and the roller was moving around and providing its own extra and random areas of pump lift. Total schoolboy error but a good learning curve.
So I built V1.4 with the following:
2.4d base pump housing
2.4d 17mm shaft, pulley and vane pump
2.4d governor flyweight assembly
2.4d advance piston and cold start advance
Volvo 2.5 Tdi D5252T:
11mm pump head
Camplate
Modified roller carrier to accept flyweight gear and central area to allow for IDI pump dimensions to allow full 2.49mm lift (issue with V1.0 (4 rollers used)
Pressure relief valve
Dynamic advance spring, cap and shims
Vauxhall frontera 2.3td LDA lid
Modified Land Rover 300 Tdi Fulcrum lever to allow for more travel required in a DI
I think that’s it all pretty much covered in terms of parts used. I’ve fitted the pump to the van but lost light. I was rushing (I’d reindexed the throttle lever with the LDA lid on so had to do it again) so thought I’d timed it up to +1.20 but I hadn’t checked the cold start lever which was out so the timing will be around +1.00. No worry though as I could just about get it to run at that before and I can adjust it back up to as far as the old +1.54 on the slots so I should be on the home stretch now. Just need to prime and bleed it and it’s a first attempt at a fire of frankenpump V1.4!
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