frankendat Posted April 26, 2022 Report Share Posted April 26, 2022 After spending an embarrassing amount of time searching for consistent valve keeper (aka valve retainer, valve lock) information, both in the FSM and on the WWW, I seek guidance. The problem: I do not trust ebay sellers (or most online sellers) to provide accurate part interchange information. My distrust is magnified, when "official" websites provide conflicting information and the part price doubles, or triples depending on the seller. A final difficulty, I have been unable to locate the part, within the FSM. I seek valve keepers for a Z24. If the specifications of the valve keepers are in the FSM for my 1984 720, then please tell me where to look. So far, the two valve keeper options that have the most support are the Melling VL1110 and the Sealed Power VK215, more than one website claims the two aforementioned are interchangeable. However, that claim is unlikely, as more than one source provides different specifications of the two retainers e.g. the retainers are listed as 7 degree and the other 14 degree. Nissan part numbers (I think) are 13210-U0100, 13210-00100, 13210-73400 (All numbers for the same part) I was able to find the most information/interchange with the Nissan part numbers with the Melling VL1110. The specifications of the Melling: Angle (Deg): 14 Degree Material: Stainless Steel Inside Diameter (in): 0.310 Inch Inside Diameter (mm): 7.87mm Length (in): 0.316 Inch Length (mm): 8.02mm Outside Diameter (in): 0.444 Inch Outside Diameter (mm): 11.28mm Thickness (mm): 1.52mm Thickness (in): 0.060 Inch Number Of Grooves: 1 Lock Type: Inside Specifications of the Sealed Power retainers listed by datsun1200 as one of the valve locks listed as "interchangeable". Valve Spring Retainer Keeper (Valve lock) * Stem diameter 0.252 * 7 degree angle * SEALED POWER Part # VK215 * BECK/ARNLEY Part # 0230045 Interchange * Datsun Z-series The Comp. Cam website has a large selection, but the parts are listed by dimensions, rather than part numbers. https://www.compcams.com/products/valve-springs-hardware/valve-locks.html Which seller is providing accurate information? Is there a Comp Cam option? Your insight is appreciated Quote Link to comment
thisismatt Posted April 26, 2022 Report Share Posted April 26, 2022 How about buy genuine nissan parts? https://www.nissanpartsdeal.com/parts/nissan-collet-valve~13210-u0100.html MELLING VL1110 comes up as the correct cross reference on rockauto. 1 Quote Link to comment
thisismatt Posted April 26, 2022 Report Share Posted April 26, 2022 13210-U0100 Part Fitment Year Make Model Trim & Engine Important vehicle option details 1979-1983 Nissan 200SX DX/SL|4 Cyl 2.0L, 4 Cyl 2.2L Z20E, Z22E 1979-1983 Nissan 280ZX GL, NON GL|6 Cyl 2.8L L28E 1980-1986 Nissan 720 Pickup DX, GL, ST, STD|4 Cyl 2.0L, 4 Cyl 2.2L, 4 Cyl 2.4L L20B, Z20, Z22, Z24 1979-1982 Nissan Datsun 310 DX, GX|4 Cyl 1.4L, 4 Cyl 1.5L A14, A15 1980-1984 Nissan Datsun 810 DX, SL|6 Cyl 2.4L, 6 Cyl 2.8L Diesel L24E, LD28 1986-1990 Nissan Hardbody Pickup (D21) Basic, DX, SST, ST, STD|4 Cyl 2.4L Z24 1987-1990 Nissan Pathfinder DX|4 Cyl 2.4L Z24I 1987-1990 Nissan Van Base, XE, XE/GXE|4 Cyl 2.4L Z24I 1 Quote Link to comment
datzenmike Posted April 26, 2022 Report Share Posted April 26, 2022 Is there some reason why you can't use the original ones that were on the engine???????? They don't wear out and don't need replacing. https://ratsun.net/classifieds/category/9-datsun-parts/ Used al L and Z series and all A series engines in the 1200, B-210 and 210 A12, A14, A15 Quote Link to comment
Ooph! Posted April 26, 2022 Report Share Posted April 26, 2022 O'Reilly's has them as well Quote Link to comment
frankendat Posted April 27, 2022 Author Report Share Posted April 27, 2022 20 hours ago, thisismatt said: 13210-U0100 Part Fitment Year Make Model Trim & Engine Important vehicle option details 1979-1983 Nissan 200SX DX/SL|4 Cyl 2.0L, 4 Cyl 2.2L Z20E, Z22E 1979-1983 Nissan 280ZX GL, NON GL|6 Cyl 2.8L L28E 1980-1986 Nissan 720 Pickup DX, GL, ST, STD|4 Cyl 2.0L, 4 Cyl 2.2L, 4 Cyl 2.4L L20B, Z20, Z22, Z24 1979-1982 Nissan Datsun 310 DX, GX|4 Cyl 1.4L, 4 Cyl 1.5L A14, A15 1980-1984 Nissan Datsun 810 DX, SL|6 Cyl 2.4L, 6 Cyl 2.8L Diesel L24E, LD28 1986-1990 Nissan Hardbody Pickup (D21) Basic, DX, SST, ST, STD|4 Cyl 2.4L Z24 1987-1990 Nissan Pathfinder DX|4 Cyl 2.4L Z24I 1987-1990 Nissan Van Base, XE, XE/GXE|4 Cyl 2.4L Z24I You unearthed one of my troubles, but, more probably than not, I will consummate collet acquisition with NissanPartsDeal. There is a good argument that I am being a bitch about this, in my defense, those selling the “collets”, or “locks” or “retainers”, or whatever, started it by creating bitchy purchasing policies. NissanPartsDeal Bitchy policy #1 – Pricing the collets by halves. No one is buying half a collet, so double the price, which isn’t much, it is just bitchy to do and when someone (like me) mentions it, then we become bitchy too. Bitchy policy #2 – Forcing purchase of 20, when a full set is 16. It is good to have spares, but forcing an extra $7.32, on those wishing a set…bitchy. Result of policies #1 and #2, is not bitchy, it is just the way it is, price for a full set of collets, shipped is $47.66. A policy that is not bitchy, but unfortunate, I am unable to locate detailed specifications on the Nissan collets, to definitely determine if collet interchange is possible. (Aftermarket resellers provide detailed specifics, regarding this part (see the opening post for a detailed view of Melling collets.)) NissanPartsDeal and http://datsun1200.com/modules/mediawiki/index.php?title=Valves Resellers, like Rockauto are usually good when it comes to identifying interchangeable parts, but I place more trust in OEM resellers and enthusiast sites like datsun1200 and Ratsun. However, there are discrepancies, creating current concern. As mentioned in my thread opening post, collet specifications and interchangeability options, lack uniformity and are therefore, suspect. Final Note: I run down these rabbit hole chasing “better” because sometimes, someone, in the last few decades, found a better way. Quote Link to comment
thisismatt Posted April 27, 2022 Report Share Posted April 27, 2022 What leads you to believe Nissan sells them in halves? Quote Link to comment
frankendat Posted April 27, 2022 Author Report Share Posted April 27, 2022 51 minutes ago, thisismatt said: What leads you to believe Nissan sells them in halves? Two per valve 16 per set 1 Quote Link to comment
datzenmike Posted April 27, 2022 Report Share Posted April 27, 2022 Where are the old ones????? Quote Link to comment
thisismatt Posted April 27, 2022 Report Share Posted April 27, 2022 (edited) 38 minutes ago, frankendat said: Two per valve 16 per set I see now, yes, it's labeled 2 times per valve on the diagrams as well. Kind of stupid considering a "collet" is a full unit that surrounds a shaft. Edited April 27, 2022 by thisismatt Quote Link to comment
frankendat Posted April 27, 2022 Author Report Share Posted April 27, 2022 41 minutes ago, datzenmike said: Where are the old ones????? I still have most of them, According to some popular build guides (so certainly not biased) when replacing valves and springs and the like, collets should be replaced. I am not sure of the significance of hardened metals or collet angle. Quote Link to comment
datzenmike Posted April 27, 2022 Report Share Posted April 27, 2022 As always, original equipment quality is always superior to after market parts. This isn't a valve cover gasket. It one fails the engine will eat a valve. Quote Link to comment
frankendat Posted April 27, 2022 Author Report Share Posted April 27, 2022 13 hours ago, datzenmike said: As always, original equipment quality is always superior to after market parts. This isn't a valve cover gasket. It one fails the engine will eat a valve. Thank you DatzenMike, original equipment is usually my default, I keep searching for tiny betterments, in vain hope they will add up. Comp cam answered my email and claims none of their products apply to a Nissan Z24. OEM it is-- done and dusted Quote Link to comment
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