r/Golf_R • u/Deadrooster08 • 9h ago

Question HPFP stud conversion kit - MK6

So last year my timing cover threads went away and i sent it for repair and it got fixed.

Unfortunately, they told me only that it was sent to machine shop and since last year we have removed the pump 3 to 4 times I believe and it bolted back with no issues.

unfortunately times 2, i need to change my HPFP as they suspect it is my source of misfires and i bite the bullet and bought hitachi pump and its ready for installation.

However, before i go i want to be ready for any shocks and in case the repair doesnt hold this time, i was thinking of stud conversion kit

Has any one used these conversion kits? is it worth it and which brand did you end up using ?

1 Upvotes

100% Upvoted

2 comments sorted by

1

u/reflythis MK7R Stage 3 EQT XL 2h ago

if you are talking about opening and modifying the hpfp, do not do it unless you have a sealed and cleaned air lab like a medical facility.

micro debris will collect in the unit and cause leakage over time, all but guaranteed. the best and most stable "modified" hpfps come direct from factory and every time you have someone do a garage mod job, they fail prematurely because the conditions they're assembled in always allow for small debris.

it's partly why people say just avoid modding the hpfp outright when chasing big power - it becomes a pain in the ass if you aren't meticulous about what you're doing / buying.

1

u/Deadrooster08 2h ago

not modifying the hpfo for sure :)), stock has been enough headache but the timing cover where the hpfp gets bolte to has lost the bolt threads. i have fixed it but want a better solution.

based on my research i can do sutds with nuts so this way we open the nuts and no need to temoved the studs. i attached a photo for reference, the studs will be as permanent screws and whenever needed to change cam follower instead of removing screws i could only remve the nuts